./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label24.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label24.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be --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 63c3a28a771a7642d2d01d4b50ea8f0914adef37135dc9c64a20524a1e6d797b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:27:09,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:27:09,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:27:10,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:27:10,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:27:10,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:27:10,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:27:10,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:27:10,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:27:10,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:27:10,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:27:10,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:27:10,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:27:10,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:27:10,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:27:10,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:27:10,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:27:10,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:27:10,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:27:10,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:27:10,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:27:10,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:27:10,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:27:10,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:27:10,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:27:10,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:27:10,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:27:10,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:27:10,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:27:10,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:27:10,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:27:10,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:27:10,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:27:10,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:27:10,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:27:10,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:27:10,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:27:10,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:27:10,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:27:10,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:27:10,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:27:10,101 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:27:10,143 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:27:10,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:27:10,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:27:10,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:27:10,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:27:10,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:27:10,147 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:27:10,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:27:10,148 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:27:10,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:27:10,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:27:10,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:27:10,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:27:10,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:27:10,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:27:10,151 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:27:10,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:27:10,151 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:27:10,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:27:10,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:27:10,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:27:10,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:27:10,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:27:10,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:27:10,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:27:10,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:27:10,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:27:10,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:27:10,155 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:27:10,155 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:27:10,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:27:10,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:27:10,156 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_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63c3a28a771a7642d2d01d4b50ea8f0914adef37135dc9c64a20524a1e6d797b [2021-10-21 19:27:10,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:27:10,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:27:10,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:27:10,504 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:27:10,505 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:27:10,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/eca-rers2012/Problem11_label24.c [2021-10-21 19:27:10,569 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/data/9edaa4628/da7cd7c5d81e4cb4be9810a4a26b3544/FLAG4801a8321 [2021-10-21 19:27:11,265 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:27:11,266 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/sv-benchmarks/c/eca-rers2012/Problem11_label24.c [2021-10-21 19:27:11,287 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/data/9edaa4628/da7cd7c5d81e4cb4be9810a4a26b3544/FLAG4801a8321 [2021-10-21 19:27:11,454 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/data/9edaa4628/da7cd7c5d81e4cb4be9810a4a26b3544 [2021-10-21 19:27:11,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:27:11,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:27:11,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:27:11,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:27:11,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:27:11,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:27:11" (1/1) ... [2021-10-21 19:27:11,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c1db8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:27:11, skipping insertion in model container [2021-10-21 19:27:11,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:27:11" (1/1) ... [2021-10-21 19:27:11,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:27:11,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:27:11,822 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_16297d80-dbb6-4683-bfa2-64c412f696fa/sv-benchmarks/c/eca-rers2012/Problem11_label24.c[7451,7464] [2021-10-21 19:27:12,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:27:12,192 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:27:12,223 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_16297d80-dbb6-4683-bfa2-64c412f696fa/sv-benchmarks/c/eca-rers2012/Problem11_label24.c[7451,7464] [2021-10-21 19:27:12,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:27:12,352 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:27:12,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:27:12 WrapperNode [2021-10-21 19:27:12,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:27:12,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:27:12,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:27:12,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:27:12,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:27:12" (1/1) ... [2021-10-21 19:27:12,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:27:12" (1/1) ... [2021-10-21 19:27:12,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:27:12,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:27:12,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:27:12,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:27:12,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:27:12" (1/1) ... [2021-10-21 19:27:12,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:27:12" (1/1) ... [2021-10-21 19:27:12,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:27:12" (1/1) ... [2021-10-21 19:27:12,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:27:12" (1/1) ... [2021-10-21 19:27:12,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:27:12" (1/1) ... [2021-10-21 19:27:12,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:27:12" (1/1) ... [2021-10-21 19:27:12,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:27:12" (1/1) ... [2021-10-21 19:27:12,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:27:12,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:27:12,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:27:12,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:27:12,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:27:12" (1/1) ... [2021-10-21 19:27:12,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:27:12,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:27:12,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:27:12,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:27:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:27:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:27:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:27:12,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:27:14,603 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:27:14,603 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:27:14,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:27:14 BoogieIcfgContainer [2021-10-21 19:27:14,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:27:14,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:27:14,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:27:14,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:27:14,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:27:11" (1/3) ... [2021-10-21 19:27:14,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637c2832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:27:14, skipping insertion in model container [2021-10-21 19:27:14,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:27:12" (2/3) ... [2021-10-21 19:27:14,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637c2832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:27:14, skipping insertion in model container [2021-10-21 19:27:14,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:27:14" (3/3) ... [2021-10-21 19:27:14,627 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label24.c [2021-10-21 19:27:14,639 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:27:14,640 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:27:14,689 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:27:14,695 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 [2021-10-21 19:27:14,696 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:27:14,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:14,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-21 19:27:14,728 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:14,729 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:27:14,730 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:14,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:14,735 INFO L82 PathProgramCache]: Analyzing trace with hash 2122806209, now seen corresponding path program 1 times [2021-10-21 19:27:14,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:14,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447402094] [2021-10-21 19:27:14,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:14,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:15,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:27:15,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:15,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447402094] [2021-10-21 19:27:15,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447402094] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:15,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:15,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:27:15,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266976950] [2021-10-21 19:27:15,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:15,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:15,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:15,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:15,135 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:16,374 INFO L93 Difference]: Finished difference Result 776 states and 1363 transitions. [2021-10-21 19:27:16,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:16,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-10-21 19:27:16,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:16,391 INFO L225 Difference]: With dead ends: 776 [2021-10-21 19:27:16,392 INFO L226 Difference]: Without dead ends: 413 [2021-10-21 19:27:16,396 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:16,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-10-21 19:27:16,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2021-10-21 19:27:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.4585365853658536) internal successors, (598), 410 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:16,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2021-10-21 19:27:16,464 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 51 [2021-10-21 19:27:16,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:16,465 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2021-10-21 19:27:16,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:16,465 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2021-10-21 19:27:16,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-10-21 19:27:16,471 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:16,472 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:27:16,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:27:16,472 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:16,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:16,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1424628072, now seen corresponding path program 1 times [2021-10-21 19:27:16,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:16,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256637929] [2021-10-21 19:27:16,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:16,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:16,719 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:27:16,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:16,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256637929] [2021-10-21 19:27:16,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256637929] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:16,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:16,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:27:16,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040461733] [2021-10-21 19:27:16,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:16,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:16,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:16,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:16,726 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:17,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:17,658 INFO L93 Difference]: Finished difference Result 1209 states and 1765 transitions. [2021-10-21 19:27:17,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:17,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-10-21 19:27:17,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:17,665 INFO L225 Difference]: With dead ends: 1209 [2021-10-21 19:27:17,665 INFO L226 Difference]: Without dead ends: 800 [2021-10-21 19:27:17,667 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:17,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-10-21 19:27:17,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787. [2021-10-21 19:27:17,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 1.3854961832061068) internal successors, (1089), 786 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:17,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1089 transitions. [2021-10-21 19:27:17,708 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1089 transitions. Word has length 119 [2021-10-21 19:27:17,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:17,708 INFO L470 AbstractCegarLoop]: Abstraction has 787 states and 1089 transitions. [2021-10-21 19:27:17,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:17,709 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1089 transitions. [2021-10-21 19:27:17,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-10-21 19:27:17,713 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:17,714 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:27:17,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:27:17,715 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:17,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:17,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1033925576, now seen corresponding path program 1 times [2021-10-21 19:27:17,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:17,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853195418] [2021-10-21 19:27:17,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:17,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:17,841 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:27:17,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:17,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853195418] [2021-10-21 19:27:17,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853195418] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:17,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:17,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:27:17,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387139901] [2021-10-21 19:27:17,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:17,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:17,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:17,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:17,852 INFO L87 Difference]: Start difference. First operand 787 states and 1089 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:18,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:18,634 INFO L93 Difference]: Finished difference Result 1942 states and 2631 transitions. [2021-10-21 19:27:18,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:18,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-10-21 19:27:18,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:18,642 INFO L225 Difference]: With dead ends: 1942 [2021-10-21 19:27:18,642 INFO L226 Difference]: Without dead ends: 1157 [2021-10-21 19:27:18,644 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:18,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2021-10-21 19:27:18,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1156. [2021-10-21 19:27:18,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1155 states have (on average 1.277922077922078) internal successors, (1476), 1155 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:18,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1476 transitions. [2021-10-21 19:27:18,678 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1476 transitions. Word has length 120 [2021-10-21 19:27:18,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:18,678 INFO L470 AbstractCegarLoop]: Abstraction has 1156 states and 1476 transitions. [2021-10-21 19:27:18,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:18,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1476 transitions. [2021-10-21 19:27:18,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-10-21 19:27:18,683 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:18,683 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:27:18,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:27:18,684 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:18,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:18,685 INFO L82 PathProgramCache]: Analyzing trace with hash -289166940, now seen corresponding path program 1 times [2021-10-21 19:27:18,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:18,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229551379] [2021-10-21 19:27:18,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:18,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:18,797 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:27:18,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:18,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229551379] [2021-10-21 19:27:18,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229551379] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:18,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:18,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:27:18,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615361833] [2021-10-21 19:27:18,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:18,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:18,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:18,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:18,801 INFO L87 Difference]: Start difference. First operand 1156 states and 1476 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:19,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:19,653 INFO L93 Difference]: Finished difference Result 2691 states and 3515 transitions. [2021-10-21 19:27:19,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:19,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2021-10-21 19:27:19,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:19,664 INFO L225 Difference]: With dead ends: 2691 [2021-10-21 19:27:19,665 INFO L226 Difference]: Without dead ends: 1721 [2021-10-21 19:27:19,666 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:19,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2021-10-21 19:27:19,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1528. [2021-10-21 19:27:19,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1527 states have (on average 1.261296660117878) internal successors, (1926), 1527 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:19,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1926 transitions. [2021-10-21 19:27:19,709 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1926 transitions. Word has length 163 [2021-10-21 19:27:19,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:19,709 INFO L470 AbstractCegarLoop]: Abstraction has 1528 states and 1926 transitions. [2021-10-21 19:27:19,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:19,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1926 transitions. [2021-10-21 19:27:19,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-10-21 19:27:19,713 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:19,713 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:27:19,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:27:19,714 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:19,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:19,715 INFO L82 PathProgramCache]: Analyzing trace with hash -933543605, now seen corresponding path program 1 times [2021-10-21 19:27:19,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:19,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373365550] [2021-10-21 19:27:19,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:19,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:19,837 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:27:19,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:19,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373365550] [2021-10-21 19:27:19,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373365550] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:19,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:19,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:27:19,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182862573] [2021-10-21 19:27:19,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:19,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:19,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:19,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:19,840 INFO L87 Difference]: Start difference. First operand 1528 states and 1926 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:20,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:20,650 INFO L93 Difference]: Finished difference Result 4158 states and 5316 transitions. [2021-10-21 19:27:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:20,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2021-10-21 19:27:20,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:20,665 INFO L225 Difference]: With dead ends: 4158 [2021-10-21 19:27:20,665 INFO L226 Difference]: Without dead ends: 2632 [2021-10-21 19:27:20,668 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:20,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2021-10-21 19:27:20,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2448. [2021-10-21 19:27:20,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2447 states have (on average 1.2174090723334696) internal successors, (2979), 2447 states have internal predecessors, (2979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:20,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 2979 transitions. [2021-10-21 19:27:20,733 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 2979 transitions. Word has length 178 [2021-10-21 19:27:20,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:20,734 INFO L470 AbstractCegarLoop]: Abstraction has 2448 states and 2979 transitions. [2021-10-21 19:27:20,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:20,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 2979 transitions. [2021-10-21 19:27:20,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-10-21 19:27:20,737 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:20,738 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:27:20,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 19:27:20,738 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:20,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:20,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1329847317, now seen corresponding path program 1 times [2021-10-21 19:27:20,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:20,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720201487] [2021-10-21 19:27:20,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:20,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:20,857 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-10-21 19:27:20,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:20,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720201487] [2021-10-21 19:27:20,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720201487] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:20,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:20,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:27:20,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776704017] [2021-10-21 19:27:20,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:20,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:20,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:20,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:20,861 INFO L87 Difference]: Start difference. First operand 2448 states and 2979 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:21,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:21,670 INFO L93 Difference]: Finished difference Result 5452 states and 6620 transitions. [2021-10-21 19:27:21,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:21,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 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 194 [2021-10-21 19:27:21,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:21,689 INFO L225 Difference]: With dead ends: 5452 [2021-10-21 19:27:21,689 INFO L226 Difference]: Without dead ends: 3006 [2021-10-21 19:27:21,692 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:21,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2021-10-21 19:27:21,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 3005. [2021-10-21 19:27:21,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3005 states, 3004 states have (on average 1.2113848202396804) internal successors, (3639), 3004 states have internal predecessors, (3639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:21,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3005 states to 3005 states and 3639 transitions. [2021-10-21 19:27:21,779 INFO L78 Accepts]: Start accepts. Automaton has 3005 states and 3639 transitions. Word has length 194 [2021-10-21 19:27:21,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:21,780 INFO L470 AbstractCegarLoop]: Abstraction has 3005 states and 3639 transitions. [2021-10-21 19:27:21,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:21,780 INFO L276 IsEmpty]: Start isEmpty. Operand 3005 states and 3639 transitions. [2021-10-21 19:27:21,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-10-21 19:27:21,784 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:21,785 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:27:21,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 19:27:21,785 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:21,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:21,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1440418757, now seen corresponding path program 1 times [2021-10-21 19:27:21,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:21,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645437423] [2021-10-21 19:27:21,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:21,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:21,989 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:27:21,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:21,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645437423] [2021-10-21 19:27:21,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645437423] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:21,990 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:21,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:27:21,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962084742] [2021-10-21 19:27:21,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:27:21,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:21,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:27:21,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:27:21,993 INFO L87 Difference]: Start difference. First operand 3005 states and 3639 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:23,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:23,689 INFO L93 Difference]: Finished difference Result 8783 states and 10795 transitions. [2021-10-21 19:27:23,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:27:23,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 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 232 [2021-10-21 19:27:23,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:23,721 INFO L225 Difference]: With dead ends: 8783 [2021-10-21 19:27:23,721 INFO L226 Difference]: Without dead ends: 5780 [2021-10-21 19:27:23,725 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:27:23,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5780 states. [2021-10-21 19:27:23,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5780 to 5404. [2021-10-21 19:27:23,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5404 states, 5403 states have (on average 1.2121043864519712) internal successors, (6549), 5403 states have internal predecessors, (6549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:23,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5404 states to 5404 states and 6549 transitions. [2021-10-21 19:27:23,874 INFO L78 Accepts]: Start accepts. Automaton has 5404 states and 6549 transitions. Word has length 232 [2021-10-21 19:27:23,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:23,874 INFO L470 AbstractCegarLoop]: Abstraction has 5404 states and 6549 transitions. [2021-10-21 19:27:23,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:23,875 INFO L276 IsEmpty]: Start isEmpty. Operand 5404 states and 6549 transitions. [2021-10-21 19:27:23,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-10-21 19:27:23,879 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:23,880 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:27:23,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 19:27:23,880 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:23,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:23,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1400544816, now seen corresponding path program 1 times [2021-10-21 19:27:23,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:23,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410205555] [2021-10-21 19:27:23,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:23,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:24,049 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-10-21 19:27:24,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:24,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410205555] [2021-10-21 19:27:24,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410205555] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:24,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:24,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:27:24,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102272687] [2021-10-21 19:27:24,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:24,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:24,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:24,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:24,054 INFO L87 Difference]: Start difference. First operand 5404 states and 6549 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:25,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:25,023 INFO L93 Difference]: Finished difference Result 11919 states and 14623 transitions. [2021-10-21 19:27:25,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:25,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 233 [2021-10-21 19:27:25,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:25,060 INFO L225 Difference]: With dead ends: 11919 [2021-10-21 19:27:25,061 INFO L226 Difference]: Without dead ends: 6885 [2021-10-21 19:27:25,068 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:25,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6885 states. [2021-10-21 19:27:25,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6885 to 6692. [2021-10-21 19:27:25,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6692 states, 6691 states have (on average 1.1927962935286205) internal successors, (7981), 6691 states have internal predecessors, (7981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:25,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6692 states to 6692 states and 7981 transitions. [2021-10-21 19:27:25,285 INFO L78 Accepts]: Start accepts. Automaton has 6692 states and 7981 transitions. Word has length 233 [2021-10-21 19:27:25,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:25,286 INFO L470 AbstractCegarLoop]: Abstraction has 6692 states and 7981 transitions. [2021-10-21 19:27:25,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:25,286 INFO L276 IsEmpty]: Start isEmpty. Operand 6692 states and 7981 transitions. [2021-10-21 19:27:25,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-10-21 19:27:25,291 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:25,292 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:27:25,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 19:27:25,292 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:25,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:25,293 INFO L82 PathProgramCache]: Analyzing trace with hash 826529202, now seen corresponding path program 1 times [2021-10-21 19:27:25,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:25,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824726987] [2021-10-21 19:27:25,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:25,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:25,444 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:27:25,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:25,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824726987] [2021-10-21 19:27:25,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824726987] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:25,445 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:25,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:27:25,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979174078] [2021-10-21 19:27:25,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:27:25,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:25,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:27:25,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:27:25,452 INFO L87 Difference]: Start difference. First operand 6692 states and 7981 transitions. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:27,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:27,136 INFO L93 Difference]: Finished difference Result 14861 states and 17819 transitions. [2021-10-21 19:27:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:27:27,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 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 243 [2021-10-21 19:27:27,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:27,191 INFO L225 Difference]: With dead ends: 14861 [2021-10-21 19:27:27,193 INFO L226 Difference]: Without dead ends: 8539 [2021-10-21 19:27:27,201 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:27:27,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8539 states. [2021-10-21 19:27:27,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8539 to 8534. [2021-10-21 19:27:27,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8534 states, 8533 states have (on average 1.1736786593226298) internal successors, (10015), 8533 states have internal predecessors, (10015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:27,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8534 states to 8534 states and 10015 transitions. [2021-10-21 19:27:27,417 INFO L78 Accepts]: Start accepts. Automaton has 8534 states and 10015 transitions. Word has length 243 [2021-10-21 19:27:27,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:27,417 INFO L470 AbstractCegarLoop]: Abstraction has 8534 states and 10015 transitions. [2021-10-21 19:27:27,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:27,419 INFO L276 IsEmpty]: Start isEmpty. Operand 8534 states and 10015 transitions. [2021-10-21 19:27:27,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-10-21 19:27:27,424 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:27,425 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 19:27:27,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-21 19:27:27,425 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:27,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:27,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1535621630, now seen corresponding path program 1 times [2021-10-21 19:27:27,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:27,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579349534] [2021-10-21 19:27:27,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:27,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:27,549 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-10-21 19:27:27,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:27,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579349534] [2021-10-21 19:27:27,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579349534] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:27,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:27,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:27:27,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431698323] [2021-10-21 19:27:27,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:27,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:27,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:27,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:27,552 INFO L87 Difference]: Start difference. First operand 8534 states and 10015 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:28,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:28,449 INFO L93 Difference]: Finished difference Result 18740 states and 22056 transitions. [2021-10-21 19:27:28,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:28,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 253 [2021-10-21 19:27:28,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:28,472 INFO L225 Difference]: With dead ends: 18740 [2021-10-21 19:27:28,472 INFO L226 Difference]: Without dead ends: 10576 [2021-10-21 19:27:28,482 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:28,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10576 states. [2021-10-21 19:27:28,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10576 to 10190. [2021-10-21 19:27:28,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10190 states, 10189 states have (on average 1.1690057905584454) internal successors, (11911), 10189 states have internal predecessors, (11911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:28,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10190 states to 10190 states and 11911 transitions. [2021-10-21 19:27:28,685 INFO L78 Accepts]: Start accepts. Automaton has 10190 states and 11911 transitions. Word has length 253 [2021-10-21 19:27:28,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:28,686 INFO L470 AbstractCegarLoop]: Abstraction has 10190 states and 11911 transitions. [2021-10-21 19:27:28,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:28,686 INFO L276 IsEmpty]: Start isEmpty. Operand 10190 states and 11911 transitions. [2021-10-21 19:27:28,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-10-21 19:27:28,694 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:28,694 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:27:28,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-21 19:27:28,695 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:28,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:28,696 INFO L82 PathProgramCache]: Analyzing trace with hash 943642801, now seen corresponding path program 1 times [2021-10-21 19:27:28,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:28,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357038709] [2021-10-21 19:27:28,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:28,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:28,825 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-10-21 19:27:28,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:28,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357038709] [2021-10-21 19:27:28,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357038709] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:28,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:28,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:27:28,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923107167] [2021-10-21 19:27:28,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:28,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:28,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:28,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:28,830 INFO L87 Difference]: Start difference. First operand 10190 states and 11911 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:29,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:29,754 INFO L93 Difference]: Finished difference Result 20567 states and 24033 transitions. [2021-10-21 19:27:29,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:29,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 281 [2021-10-21 19:27:29,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:29,774 INFO L225 Difference]: With dead ends: 20567 [2021-10-21 19:27:29,774 INFO L226 Difference]: Without dead ends: 10563 [2021-10-21 19:27:29,783 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:29,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2021-10-21 19:27:29,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 10557. [2021-10-21 19:27:29,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10557 states, 10556 states have (on average 1.139920424403183) internal successors, (12033), 10556 states have internal predecessors, (12033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:29,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10557 states to 10557 states and 12033 transitions. [2021-10-21 19:27:29,960 INFO L78 Accepts]: Start accepts. Automaton has 10557 states and 12033 transitions. Word has length 281 [2021-10-21 19:27:29,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:29,961 INFO L470 AbstractCegarLoop]: Abstraction has 10557 states and 12033 transitions. [2021-10-21 19:27:29,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:29,961 INFO L276 IsEmpty]: Start isEmpty. Operand 10557 states and 12033 transitions. [2021-10-21 19:27:29,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-10-21 19:27:29,972 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:29,972 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 19:27:29,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-21 19:27:29,973 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:29,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:29,973 INFO L82 PathProgramCache]: Analyzing trace with hash -2146355781, now seen corresponding path program 1 times [2021-10-21 19:27:29,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:29,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991892433] [2021-10-21 19:27:29,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:29,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-21 19:27:30,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:30,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991892433] [2021-10-21 19:27:30,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991892433] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:30,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:30,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:27:30,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355204146] [2021-10-21 19:27:30,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:30,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:30,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:30,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:30,119 INFO L87 Difference]: Start difference. First operand 10557 states and 12033 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:31,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:31,094 INFO L93 Difference]: Finished difference Result 23886 states and 27410 transitions. [2021-10-21 19:27:31,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:31,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 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 314 [2021-10-21 19:27:31,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:31,121 INFO L225 Difference]: With dead ends: 23886 [2021-10-21 19:27:31,121 INFO L226 Difference]: Without dead ends: 13699 [2021-10-21 19:27:31,129 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:31,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13699 states. [2021-10-21 19:27:31,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13699 to 13694. [2021-10-21 19:27:31,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13694 states, 13693 states have (on average 1.1337179580807712) internal successors, (15524), 13693 states have internal predecessors, (15524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:31,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13694 states to 13694 states and 15524 transitions. [2021-10-21 19:27:31,349 INFO L78 Accepts]: Start accepts. Automaton has 13694 states and 15524 transitions. Word has length 314 [2021-10-21 19:27:31,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:31,351 INFO L470 AbstractCegarLoop]: Abstraction has 13694 states and 15524 transitions. [2021-10-21 19:27:31,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:31,351 INFO L276 IsEmpty]: Start isEmpty. Operand 13694 states and 15524 transitions. [2021-10-21 19:27:31,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2021-10-21 19:27:31,364 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:31,364 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 19:27:31,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-21 19:27:31,365 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:31,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:31,365 INFO L82 PathProgramCache]: Analyzing trace with hash 263747274, now seen corresponding path program 1 times [2021-10-21 19:27:31,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:31,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166954288] [2021-10-21 19:27:31,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:31,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:31,496 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-21 19:27:31,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:31,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166954288] [2021-10-21 19:27:31,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166954288] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:31,497 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:31,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:27:31,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835450897] [2021-10-21 19:27:31,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:31,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:31,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:31,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:31,500 INFO L87 Difference]: Start difference. First operand 13694 states and 15524 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:32,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:32,380 INFO L93 Difference]: Finished difference Result 30517 states and 34553 transitions. [2021-10-21 19:27:32,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:32,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 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 322 [2021-10-21 19:27:32,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:32,410 INFO L225 Difference]: With dead ends: 30517 [2021-10-21 19:27:32,411 INFO L226 Difference]: Without dead ends: 17193 [2021-10-21 19:27:32,423 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:32,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17193 states. [2021-10-21 19:27:32,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17193 to 17190. [2021-10-21 19:27:32,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17190 states, 17189 states have (on average 1.1226365698993543) internal successors, (19297), 17189 states have internal predecessors, (19297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:32,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17190 states to 17190 states and 19297 transitions. [2021-10-21 19:27:32,670 INFO L78 Accepts]: Start accepts. Automaton has 17190 states and 19297 transitions. Word has length 322 [2021-10-21 19:27:32,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:32,670 INFO L470 AbstractCegarLoop]: Abstraction has 17190 states and 19297 transitions. [2021-10-21 19:27:32,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:32,671 INFO L276 IsEmpty]: Start isEmpty. Operand 17190 states and 19297 transitions. [2021-10-21 19:27:32,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-10-21 19:27:32,684 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:32,684 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 19:27:32,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-21 19:27:32,685 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:32,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:32,686 INFO L82 PathProgramCache]: Analyzing trace with hash -379447870, now seen corresponding path program 1 times [2021-10-21 19:27:32,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:32,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961683245] [2021-10-21 19:27:32,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:32,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:32,985 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 227 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:27:32,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:32,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961683245] [2021-10-21 19:27:32,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961683245] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:27:32,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134654157] [2021-10-21 19:27:32,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:32,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:27:32,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:27:32,992 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:27:33,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:27:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:33,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:27:33,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:27:34,347 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-21 19:27:34,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134654157] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:34,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:27:34,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-21 19:27:34,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797378236] [2021-10-21 19:27:34,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:34,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:34,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:34,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:27:34,350 INFO L87 Difference]: Start difference. First operand 17190 states and 19297 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:35,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:35,322 INFO L93 Difference]: Finished difference Result 35504 states and 40039 transitions. [2021-10-21 19:27:35,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:35,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 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 324 [2021-10-21 19:27:35,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:35,353 INFO L225 Difference]: With dead ends: 35504 [2021-10-21 19:27:35,353 INFO L226 Difference]: Without dead ends: 18684 [2021-10-21 19:27:35,366 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 16.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:27:35,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18684 states. [2021-10-21 19:27:35,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18684 to 18676. [2021-10-21 19:27:35,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18676 states, 18675 states have (on average 1.121178045515395) internal successors, (20938), 18675 states have internal predecessors, (20938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:35,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18676 states to 18676 states and 20938 transitions. [2021-10-21 19:27:35,708 INFO L78 Accepts]: Start accepts. Automaton has 18676 states and 20938 transitions. Word has length 324 [2021-10-21 19:27:35,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:35,708 INFO L470 AbstractCegarLoop]: Abstraction has 18676 states and 20938 transitions. [2021-10-21 19:27:35,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:35,709 INFO L276 IsEmpty]: Start isEmpty. Operand 18676 states and 20938 transitions. [2021-10-21 19:27:35,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-10-21 19:27:35,717 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:35,717 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 19:27:35,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:27:35,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-21 19:27:35,932 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:35,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:35,932 INFO L82 PathProgramCache]: Analyzing trace with hash -56733327, now seen corresponding path program 1 times [2021-10-21 19:27:35,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:35,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074895123] [2021-10-21 19:27:35,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:35,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:36,097 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-10-21 19:27:36,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:36,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074895123] [2021-10-21 19:27:36,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074895123] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:36,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:36,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:27:36,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831743733] [2021-10-21 19:27:36,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:36,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:36,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:36,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:36,100 INFO L87 Difference]: Start difference. First operand 18676 states and 20938 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:36,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:36,987 INFO L93 Difference]: Finished difference Result 40109 states and 44936 transitions. [2021-10-21 19:27:36,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:36,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 326 [2021-10-21 19:27:36,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:37,023 INFO L225 Difference]: With dead ends: 40109 [2021-10-21 19:27:37,024 INFO L226 Difference]: Without dead ends: 21803 [2021-10-21 19:27:37,035 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:37,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21803 states. [2021-10-21 19:27:37,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21803 to 14439. [2021-10-21 19:27:37,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14439 states, 14438 states have (on average 1.13159717412384) internal successors, (16338), 14438 states have internal predecessors, (16338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:37,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14439 states to 14439 states and 16338 transitions. [2021-10-21 19:27:37,272 INFO L78 Accepts]: Start accepts. Automaton has 14439 states and 16338 transitions. Word has length 326 [2021-10-21 19:27:37,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:37,273 INFO L470 AbstractCegarLoop]: Abstraction has 14439 states and 16338 transitions. [2021-10-21 19:27:37,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:37,273 INFO L276 IsEmpty]: Start isEmpty. Operand 14439 states and 16338 transitions. [2021-10-21 19:27:37,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-10-21 19:27:37,282 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:37,282 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 19:27:37,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-21 19:27:37,283 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:37,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:37,284 INFO L82 PathProgramCache]: Analyzing trace with hash 234214298, now seen corresponding path program 1 times [2021-10-21 19:27:37,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:37,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995004935] [2021-10-21 19:27:37,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:37,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:37,486 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-21 19:27:37,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:37,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995004935] [2021-10-21 19:27:37,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995004935] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:37,487 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:37,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:27:37,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118733698] [2021-10-21 19:27:37,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:37,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:37,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:37,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:37,489 INFO L87 Difference]: Start difference. First operand 14439 states and 16338 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:37,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:37,989 INFO L93 Difference]: Finished difference Result 28500 states and 32286 transitions. [2021-10-21 19:27:37,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:37,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 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 333 [2021-10-21 19:27:37,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:38,010 INFO L225 Difference]: With dead ends: 28500 [2021-10-21 19:27:38,010 INFO L226 Difference]: Without dead ends: 14431 [2021-10-21 19:27:38,019 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:38,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14431 states. [2021-10-21 19:27:38,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14431 to 14428. [2021-10-21 19:27:38,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14428 states, 14427 states have (on average 1.1309350523324322) internal successors, (16316), 14427 states have internal predecessors, (16316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:38,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14428 states to 14428 states and 16316 transitions. [2021-10-21 19:27:38,214 INFO L78 Accepts]: Start accepts. Automaton has 14428 states and 16316 transitions. Word has length 333 [2021-10-21 19:27:38,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:38,215 INFO L470 AbstractCegarLoop]: Abstraction has 14428 states and 16316 transitions. [2021-10-21 19:27:38,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:38,215 INFO L276 IsEmpty]: Start isEmpty. Operand 14428 states and 16316 transitions. [2021-10-21 19:27:38,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2021-10-21 19:27:38,225 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:38,226 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:27:38,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-21 19:27:38,226 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:38,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:38,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1309922959, now seen corresponding path program 1 times [2021-10-21 19:27:38,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:38,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344415048] [2021-10-21 19:27:38,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:38,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:38,426 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-10-21 19:27:38,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:38,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344415048] [2021-10-21 19:27:38,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344415048] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:38,427 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:38,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:27:38,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412479110] [2021-10-21 19:27:38,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:38,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:38,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:38,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:38,430 INFO L87 Difference]: Start difference. First operand 14428 states and 16316 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:39,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:39,343 INFO L93 Difference]: Finished difference Result 32350 states and 36463 transitions. [2021-10-21 19:27:39,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:39,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 357 [2021-10-21 19:27:39,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:39,366 INFO L225 Difference]: With dead ends: 32350 [2021-10-21 19:27:39,366 INFO L226 Difference]: Without dead ends: 16448 [2021-10-21 19:27:39,377 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:39,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16448 states. [2021-10-21 19:27:39,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16448 to 14052. [2021-10-21 19:27:39,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14052 states, 14051 states have (on average 1.095224539178706) internal successors, (15389), 14051 states have internal predecessors, (15389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:39,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14052 states to 14052 states and 15389 transitions. [2021-10-21 19:27:39,592 INFO L78 Accepts]: Start accepts. Automaton has 14052 states and 15389 transitions. Word has length 357 [2021-10-21 19:27:39,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:39,593 INFO L470 AbstractCegarLoop]: Abstraction has 14052 states and 15389 transitions. [2021-10-21 19:27:39,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:39,594 INFO L276 IsEmpty]: Start isEmpty. Operand 14052 states and 15389 transitions. [2021-10-21 19:27:39,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2021-10-21 19:27:39,610 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:39,610 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:27:39,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-21 19:27:39,611 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:39,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:39,612 INFO L82 PathProgramCache]: Analyzing trace with hash -2132777761, now seen corresponding path program 1 times [2021-10-21 19:27:39,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:39,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847478689] [2021-10-21 19:27:39,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:39,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:39,805 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-10-21 19:27:39,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:39,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847478689] [2021-10-21 19:27:39,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847478689] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:39,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:39,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:27:39,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198187946] [2021-10-21 19:27:39,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:27:39,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:39,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:27:39,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:27:39,810 INFO L87 Difference]: Start difference. First operand 14052 states and 15389 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:40,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:40,995 INFO L93 Difference]: Finished difference Result 28841 states and 31559 transitions. [2021-10-21 19:27:40,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:27:40,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 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 358 [2021-10-21 19:27:40,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:41,007 INFO L225 Difference]: With dead ends: 28841 [2021-10-21 19:27:41,008 INFO L226 Difference]: Without dead ends: 15159 [2021-10-21 19:27:41,016 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:27:41,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15159 states. [2021-10-21 19:27:41,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15159 to 14236. [2021-10-21 19:27:41,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14236 states, 14235 states have (on average 1.0942746750965928) internal successors, (15577), 14235 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:41,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14236 states to 14236 states and 15577 transitions. [2021-10-21 19:27:41,199 INFO L78 Accepts]: Start accepts. Automaton has 14236 states and 15577 transitions. Word has length 358 [2021-10-21 19:27:41,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:41,199 INFO L470 AbstractCegarLoop]: Abstraction has 14236 states and 15577 transitions. [2021-10-21 19:27:41,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:41,200 INFO L276 IsEmpty]: Start isEmpty. Operand 14236 states and 15577 transitions. [2021-10-21 19:27:41,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-10-21 19:27:41,208 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:41,209 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 19:27:41,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-21 19:27:41,209 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:41,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:41,210 INFO L82 PathProgramCache]: Analyzing trace with hash 827224776, now seen corresponding path program 1 times [2021-10-21 19:27:41,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:41,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427505813] [2021-10-21 19:27:41,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:41,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:41,381 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-21 19:27:41,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:41,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427505813] [2021-10-21 19:27:41,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427505813] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:41,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:41,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:27:41,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667868652] [2021-10-21 19:27:41,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:27:41,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:41,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:27:41,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:27:41,385 INFO L87 Difference]: Start difference. First operand 14236 states and 15577 transitions. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:42,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:42,584 INFO L93 Difference]: Finished difference Result 36219 states and 39627 transitions. [2021-10-21 19:27:42,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:27:42,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 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 372 [2021-10-21 19:27:42,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:42,600 INFO L225 Difference]: With dead ends: 36219 [2021-10-21 19:27:42,600 INFO L226 Difference]: Without dead ends: 21801 [2021-10-21 19:27:42,604 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:27:42,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21801 states. [2021-10-21 19:27:42,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21801 to 20506. [2021-10-21 19:27:42,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20506 states, 20505 states have (on average 1.090904657400634) internal successors, (22369), 20505 states have internal predecessors, (22369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:42,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20506 states to 20506 states and 22369 transitions. [2021-10-21 19:27:42,798 INFO L78 Accepts]: Start accepts. Automaton has 20506 states and 22369 transitions. Word has length 372 [2021-10-21 19:27:42,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:42,799 INFO L470 AbstractCegarLoop]: Abstraction has 20506 states and 22369 transitions. [2021-10-21 19:27:42,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:42,799 INFO L276 IsEmpty]: Start isEmpty. Operand 20506 states and 22369 transitions. [2021-10-21 19:27:42,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-10-21 19:27:42,810 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:42,810 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:27:42,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-21 19:27:42,811 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:42,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:42,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1553293930, now seen corresponding path program 1 times [2021-10-21 19:27:42,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:42,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646621845] [2021-10-21 19:27:42,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:42,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:43,040 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 146 proven. 200 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-10-21 19:27:43,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:43,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646621845] [2021-10-21 19:27:43,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646621845] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:27:43,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398549681] [2021-10-21 19:27:43,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:43,041 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:27:43,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:27:43,042 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:27:43,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 19:27:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:43,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-21 19:27:43,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:27:46,157 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 244 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:27:46,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398549681] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:27:46,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:27:46,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2021-10-21 19:27:46,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643773888] [2021-10-21 19:27:46,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:27:46,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:46,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:27:46,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:27:46,162 INFO L87 Difference]: Start difference. First operand 20506 states and 22369 transitions. Second operand has 9 states, 9 states have (on average 77.88888888888889) internal successors, (701), 8 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:50,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:50,941 INFO L93 Difference]: Finished difference Result 57155 states and 62107 transitions. [2021-10-21 19:27:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-21 19:27:50,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 77.88888888888889) internal successors, (701), 8 states have internal predecessors, (701), 0 states have call successors, (0), 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 389 [2021-10-21 19:27:50,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:50,975 INFO L225 Difference]: With dead ends: 57155 [2021-10-21 19:27:50,975 INFO L226 Difference]: Without dead ends: 36465 [2021-10-21 19:27:50,986 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 177.9ms TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2021-10-21 19:27:51,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36465 states. [2021-10-21 19:27:51,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36465 to 33774. [2021-10-21 19:27:51,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33774 states, 33773 states have (on average 1.0809522399549936) internal successors, (36507), 33773 states have internal predecessors, (36507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:51,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33774 states to 33774 states and 36507 transitions. [2021-10-21 19:27:51,465 INFO L78 Accepts]: Start accepts. Automaton has 33774 states and 36507 transitions. Word has length 389 [2021-10-21 19:27:51,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:51,466 INFO L470 AbstractCegarLoop]: Abstraction has 33774 states and 36507 transitions. [2021-10-21 19:27:51,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 77.88888888888889) internal successors, (701), 8 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:51,466 INFO L276 IsEmpty]: Start isEmpty. Operand 33774 states and 36507 transitions. [2021-10-21 19:27:51,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-10-21 19:27:51,477 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:51,479 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 19:27:51,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-21 19:27:51,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:27:51,695 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:51,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:51,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1546004851, now seen corresponding path program 1 times [2021-10-21 19:27:51,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:51,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324522973] [2021-10-21 19:27:51,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:51,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:51,902 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-10-21 19:27:51,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:51,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324522973] [2021-10-21 19:27:51,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324522973] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:51,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:51,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:27:51,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941339266] [2021-10-21 19:27:51,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:27:51,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:51,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:27:51,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:27:51,905 INFO L87 Difference]: Start difference. First operand 33774 states and 36507 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:53,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:53,560 INFO L93 Difference]: Finished difference Result 69581 states and 75255 transitions. [2021-10-21 19:27:53,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:27:53,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 394 [2021-10-21 19:27:53,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:53,597 INFO L225 Difference]: With dead ends: 69581 [2021-10-21 19:27:53,597 INFO L226 Difference]: Without dead ends: 36177 [2021-10-21 19:27:53,613 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:27:53,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36177 states. [2021-10-21 19:27:54,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36177 to 32290. [2021-10-21 19:27:54,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32290 states, 32289 states have (on average 1.0802440459599245) internal successors, (34880), 32289 states have internal predecessors, (34880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:54,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32290 states to 32290 states and 34880 transitions. [2021-10-21 19:27:54,273 INFO L78 Accepts]: Start accepts. Automaton has 32290 states and 34880 transitions. Word has length 394 [2021-10-21 19:27:54,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:54,273 INFO L470 AbstractCegarLoop]: Abstraction has 32290 states and 34880 transitions. [2021-10-21 19:27:54,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:54,273 INFO L276 IsEmpty]: Start isEmpty. Operand 32290 states and 34880 transitions. [2021-10-21 19:27:54,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-10-21 19:27:54,285 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:54,285 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 19:27:54,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-21 19:27:54,286 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:54,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:54,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1148113260, now seen corresponding path program 1 times [2021-10-21 19:27:54,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:54,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648742369] [2021-10-21 19:27:54,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:54,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:54,617 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-10-21 19:27:54,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:54,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648742369] [2021-10-21 19:27:54,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648742369] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:54,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:54,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:27:54,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092655209] [2021-10-21 19:27:54,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:54,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:54,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:54,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:54,622 INFO L87 Difference]: Start difference. First operand 32290 states and 34880 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:55,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:55,736 INFO L93 Difference]: Finished difference Result 66782 states and 72137 transitions. [2021-10-21 19:27:55,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:55,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 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 434 [2021-10-21 19:27:55,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:55,852 INFO L225 Difference]: With dead ends: 66782 [2021-10-21 19:27:55,852 INFO L226 Difference]: Without dead ends: 34862 [2021-10-21 19:27:55,863 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:55,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34862 states. [2021-10-21 19:27:56,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34862 to 28232. [2021-10-21 19:27:56,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28232 states, 28231 states have (on average 1.0754135524777726) internal successors, (30360), 28231 states have internal predecessors, (30360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:56,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28232 states to 28232 states and 30360 transitions. [2021-10-21 19:27:56,284 INFO L78 Accepts]: Start accepts. Automaton has 28232 states and 30360 transitions. Word has length 434 [2021-10-21 19:27:56,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:56,285 INFO L470 AbstractCegarLoop]: Abstraction has 28232 states and 30360 transitions. [2021-10-21 19:27:56,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:56,286 INFO L276 IsEmpty]: Start isEmpty. Operand 28232 states and 30360 transitions. [2021-10-21 19:27:56,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2021-10-21 19:27:56,395 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:56,395 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:27:56,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-21 19:27:56,396 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:56,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:56,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1848032332, now seen corresponding path program 1 times [2021-10-21 19:27:56,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:56,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512725425] [2021-10-21 19:27:56,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:56,404 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:56,628 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 608 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-10-21 19:27:56,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:56,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512725425] [2021-10-21 19:27:56,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512725425] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:27:56,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:56,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:27:56,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300324376] [2021-10-21 19:27:56,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:27:56,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:27:56,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:27:56,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:56,635 INFO L87 Difference]: Start difference. First operand 28232 states and 30360 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:57,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:27:57,667 INFO L93 Difference]: Finished difference Result 55550 states and 59788 transitions. [2021-10-21 19:27:57,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:27:57,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 468 [2021-10-21 19:27:57,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:27:57,707 INFO L225 Difference]: With dead ends: 55550 [2021-10-21 19:27:57,708 INFO L226 Difference]: Without dead ends: 29712 [2021-10-21 19:27:57,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:27:57,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29712 states. [2021-10-21 19:27:58,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29712 to 28048. [2021-10-21 19:27:58,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28048 states, 28047 states have (on average 1.0749812814204727) internal successors, (30150), 28047 states have internal predecessors, (30150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:58,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28048 states to 28048 states and 30150 transitions. [2021-10-21 19:27:58,149 INFO L78 Accepts]: Start accepts. Automaton has 28048 states and 30150 transitions. Word has length 468 [2021-10-21 19:27:58,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:27:58,149 INFO L470 AbstractCegarLoop]: Abstraction has 28048 states and 30150 transitions. [2021-10-21 19:27:58,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:27:58,149 INFO L276 IsEmpty]: Start isEmpty. Operand 28048 states and 30150 transitions. [2021-10-21 19:27:58,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2021-10-21 19:27:58,159 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:27:58,159 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:27:58,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-21 19:27:58,160 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:27:58,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:27:58,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1117136727, now seen corresponding path program 1 times [2021-10-21 19:27:58,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:27:58,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796862726] [2021-10-21 19:27:58,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:58,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:27:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:58,561 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 269 proven. 132 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-10-21 19:27:58,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:27:58,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796862726] [2021-10-21 19:27:58,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796862726] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:27:58,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399950792] [2021-10-21 19:27:58,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:58,562 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:27:58,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:27:58,565 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:27:58,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 19:27:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:59,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:27:59,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:28:00,412 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 401 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-10-21 19:28:00,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399950792] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:00,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:28:00,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-21 19:28:00,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568217038] [2021-10-21 19:28:00,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:00,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:00,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:00,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:28:00,416 INFO L87 Difference]: Start difference. First operand 28048 states and 30150 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:01,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:01,280 INFO L93 Difference]: Finished difference Result 55910 states and 60132 transitions. [2021-10-21 19:28:01,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:01,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 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 472 [2021-10-21 19:28:01,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:01,313 INFO L225 Difference]: With dead ends: 55910 [2021-10-21 19:28:01,313 INFO L226 Difference]: Without dead ends: 28782 [2021-10-21 19:28:01,327 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.6ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:28:01,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28782 states. [2021-10-21 19:28:01,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28782 to 27862. [2021-10-21 19:28:01,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27862 states, 27861 states have (on average 1.0719285022073868) internal successors, (29865), 27861 states have internal predecessors, (29865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:01,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27862 states to 27862 states and 29865 transitions. [2021-10-21 19:28:01,777 INFO L78 Accepts]: Start accepts. Automaton has 27862 states and 29865 transitions. Word has length 472 [2021-10-21 19:28:01,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:01,778 INFO L470 AbstractCegarLoop]: Abstraction has 27862 states and 29865 transitions. [2021-10-21 19:28:01,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:01,778 INFO L276 IsEmpty]: Start isEmpty. Operand 27862 states and 29865 transitions. [2021-10-21 19:28:01,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2021-10-21 19:28:01,793 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:01,793 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-10-21 19:28:01,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:28:02,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-21 19:28:02,008 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:02,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:02,008 INFO L82 PathProgramCache]: Analyzing trace with hash 2131901513, now seen corresponding path program 1 times [2021-10-21 19:28:02,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:02,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411519203] [2021-10-21 19:28:02,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:02,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:02,634 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 599 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-10-21 19:28:02,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:02,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411519203] [2021-10-21 19:28:02,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411519203] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:02,635 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:02,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 19:28:02,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514790564] [2021-10-21 19:28:02,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:28:02,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:02,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:28:02,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:28:02,637 INFO L87 Difference]: Start difference. First operand 27862 states and 29865 transitions. Second operand has 7 states, 7 states have (on average 56.285714285714285) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:04,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:04,323 INFO L93 Difference]: Finished difference Result 59178 states and 63376 transitions. [2021-10-21 19:28:04,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:28:04,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 56.285714285714285) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 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 523 [2021-10-21 19:28:04,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:04,356 INFO L225 Difference]: With dead ends: 59178 [2021-10-21 19:28:04,356 INFO L226 Difference]: Without dead ends: 33710 [2021-10-21 19:28:04,367 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 202.1ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:28:04,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33710 states. [2021-10-21 19:28:04,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33710 to 28968. [2021-10-21 19:28:04,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28968 states, 28967 states have (on average 1.072254634584182) internal successors, (31060), 28967 states have internal predecessors, (31060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:04,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28968 states to 28968 states and 31060 transitions. [2021-10-21 19:28:04,857 INFO L78 Accepts]: Start accepts. Automaton has 28968 states and 31060 transitions. Word has length 523 [2021-10-21 19:28:04,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:04,857 INFO L470 AbstractCegarLoop]: Abstraction has 28968 states and 31060 transitions. [2021-10-21 19:28:04,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.285714285714285) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:04,858 INFO L276 IsEmpty]: Start isEmpty. Operand 28968 states and 31060 transitions. [2021-10-21 19:28:04,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2021-10-21 19:28:04,870 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:04,870 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 19:28:04,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-21 19:28:04,870 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:04,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:04,871 INFO L82 PathProgramCache]: Analyzing trace with hash 435204898, now seen corresponding path program 1 times [2021-10-21 19:28:04,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:04,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353877545] [2021-10-21 19:28:04,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:04,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:05,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:05,453 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 606 proven. 8 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-10-21 19:28:05,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:05,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353877545] [2021-10-21 19:28:05,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353877545] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:05,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787039047] [2021-10-21 19:28:05,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:05,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:28:05,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:28:05,460 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:28:05,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 19:28:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:06,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:28:06,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:28:09,226 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 493 proven. 121 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-10-21 19:28:09,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787039047] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:09,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:28:09,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2021-10-21 19:28:09,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432232954] [2021-10-21 19:28:09,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:28:09,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:09,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:28:09,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:28:09,229 INFO L87 Difference]: Start difference. First operand 28968 states and 31060 transitions. Second operand has 9 states, 9 states have (on average 76.44444444444444) internal successors, (688), 8 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:12,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:12,271 INFO L93 Difference]: Finished difference Result 64164 states and 68676 transitions. [2021-10-21 19:28:12,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-21 19:28:12,272 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 76.44444444444444) internal successors, (688), 8 states have internal predecessors, (688), 0 states have call successors, (0), 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 533 [2021-10-21 19:28:12,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:12,303 INFO L225 Difference]: With dead ends: 64164 [2021-10-21 19:28:12,304 INFO L226 Difference]: Without dead ends: 35934 [2021-10-21 19:28:12,316 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 385.6ms TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2021-10-21 19:28:12,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35934 states. [2021-10-21 19:28:12,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35934 to 32832. [2021-10-21 19:28:12,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32832 states, 32831 states have (on average 1.0690201334104963) internal successors, (35097), 32831 states have internal predecessors, (35097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:12,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32832 states to 32832 states and 35097 transitions. [2021-10-21 19:28:12,869 INFO L78 Accepts]: Start accepts. Automaton has 32832 states and 35097 transitions. Word has length 533 [2021-10-21 19:28:12,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:12,869 INFO L470 AbstractCegarLoop]: Abstraction has 32832 states and 35097 transitions. [2021-10-21 19:28:12,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.44444444444444) internal successors, (688), 8 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:12,870 INFO L276 IsEmpty]: Start isEmpty. Operand 32832 states and 35097 transitions. [2021-10-21 19:28:12,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2021-10-21 19:28:12,886 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:12,886 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 19:28:12,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:28:13,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-21 19:28:13,106 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:13,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:13,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1729367067, now seen corresponding path program 1 times [2021-10-21 19:28:13,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:13,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987915635] [2021-10-21 19:28:13,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:13,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 390 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-10-21 19:28:13,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:13,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987915635] [2021-10-21 19:28:13,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987915635] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:13,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151109177] [2021-10-21 19:28:13,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:13,410 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:28:13,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:28:13,412 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:28:13,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 19:28:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:14,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:28:14,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:28:17,910 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 341 proven. 255 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-10-21 19:28:17,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151109177] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:17,911 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:28:17,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-21 19:28:17,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147476896] [2021-10-21 19:28:17,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:28:17,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:17,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:28:17,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:28:17,913 INFO L87 Difference]: Start difference. First operand 32832 states and 35097 transitions. Second operand has 7 states, 7 states have (on average 65.28571428571429) internal successors, (457), 6 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:21,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:21,278 INFO L93 Difference]: Finished difference Result 78399 states and 83956 transitions. [2021-10-21 19:28:21,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:28:21,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 65.28571428571429) internal successors, (457), 6 states have internal predecessors, (457), 0 states have call successors, (0), 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 536 [2021-10-21 19:28:21,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:21,326 INFO L225 Difference]: With dead ends: 78399 [2021-10-21 19:28:21,326 INFO L226 Difference]: Without dead ends: 46305 [2021-10-21 19:28:21,345 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 534 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 42.3ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:28:21,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46305 states. [2021-10-21 19:28:21,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46305 to 38924. [2021-10-21 19:28:21,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38924 states, 38923 states have (on average 1.0699843280322687) internal successors, (41647), 38923 states have internal predecessors, (41647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:21,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38924 states to 38924 states and 41647 transitions. [2021-10-21 19:28:21,985 INFO L78 Accepts]: Start accepts. Automaton has 38924 states and 41647 transitions. Word has length 536 [2021-10-21 19:28:21,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:21,985 INFO L470 AbstractCegarLoop]: Abstraction has 38924 states and 41647 transitions. [2021-10-21 19:28:21,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.28571428571429) internal successors, (457), 6 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:21,986 INFO L276 IsEmpty]: Start isEmpty. Operand 38924 states and 41647 transitions. [2021-10-21 19:28:22,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2021-10-21 19:28:22,001 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:22,002 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:22,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:28:22,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-21 19:28:22,228 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:22,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:22,228 INFO L82 PathProgramCache]: Analyzing trace with hash 958598378, now seen corresponding path program 1 times [2021-10-21 19:28:22,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:22,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236473480] [2021-10-21 19:28:22,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:22,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:22,669 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 408 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-10-21 19:28:22,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:22,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236473480] [2021-10-21 19:28:22,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236473480] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:22,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564739188] [2021-10-21 19:28:22,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:22,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:28:22,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:28:22,674 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:28:22,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-21 19:28:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:23,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:28:23,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:28:25,402 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 352 proven. 49 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-21 19:28:25,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564739188] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:25,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:28:25,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-10-21 19:28:25,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669218982] [2021-10-21 19:28:25,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:28:25,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:25,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:28:25,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:28:25,405 INFO L87 Difference]: Start difference. First operand 38924 states and 41647 transitions. Second operand has 8 states, 8 states have (on average 86.125) internal successors, (689), 8 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:29,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:29,261 INFO L93 Difference]: Finished difference Result 89090 states and 95225 transitions. [2021-10-21 19:28:29,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:28:29,261 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 86.125) internal successors, (689), 8 states have internal predecessors, (689), 0 states have call successors, (0), 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 547 [2021-10-21 19:28:29,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:29,307 INFO L225 Difference]: With dead ends: 89090 [2021-10-21 19:28:29,308 INFO L226 Difference]: Without dead ends: 52744 [2021-10-21 19:28:29,317 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 52.3ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:28:29,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52744 states. [2021-10-21 19:28:29,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52744 to 40028. [2021-10-21 19:28:29,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40028 states, 40027 states have (on average 1.0712019386913834) internal successors, (42877), 40027 states have internal predecessors, (42877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:29,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40028 states to 40028 states and 42877 transitions. [2021-10-21 19:28:29,980 INFO L78 Accepts]: Start accepts. Automaton has 40028 states and 42877 transitions. Word has length 547 [2021-10-21 19:28:29,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:29,981 INFO L470 AbstractCegarLoop]: Abstraction has 40028 states and 42877 transitions. [2021-10-21 19:28:29,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 86.125) internal successors, (689), 8 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:29,981 INFO L276 IsEmpty]: Start isEmpty. Operand 40028 states and 42877 transitions. [2021-10-21 19:28:29,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2021-10-21 19:28:29,992 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:29,993 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2021-10-21 19:28:30,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-10-21 19:28:30,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:28:30,208 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:30,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:30,208 INFO L82 PathProgramCache]: Analyzing trace with hash -832566384, now seen corresponding path program 1 times [2021-10-21 19:28:30,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:30,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504708499] [2021-10-21 19:28:30,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:30,208 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:30,416 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-10-21 19:28:30,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:30,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504708499] [2021-10-21 19:28:30,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504708499] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:30,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:30,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:30,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955069195] [2021-10-21 19:28:30,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:28:30,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:30,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:28:30,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:28:30,419 INFO L87 Difference]: Start difference. First operand 40028 states and 42877 transitions. Second operand has 4 states, 4 states have (on average 106.25) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:31,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:31,877 INFO L93 Difference]: Finished difference Result 78400 states and 84017 transitions. [2021-10-21 19:28:31,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:28:31,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 106.25) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 554 [2021-10-21 19:28:31,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:31,916 INFO L225 Difference]: With dead ends: 78400 [2021-10-21 19:28:31,916 INFO L226 Difference]: Without dead ends: 39844 [2021-10-21 19:28:31,933 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:28:31,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39844 states. [2021-10-21 19:28:32,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39844 to 25100. [2021-10-21 19:28:32,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25100 states, 25099 states have (on average 1.0709191601259014) internal successors, (26879), 25099 states have internal predecessors, (26879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:32,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25100 states to 25100 states and 26879 transitions. [2021-10-21 19:28:32,491 INFO L78 Accepts]: Start accepts. Automaton has 25100 states and 26879 transitions. Word has length 554 [2021-10-21 19:28:32,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:32,491 INFO L470 AbstractCegarLoop]: Abstraction has 25100 states and 26879 transitions. [2021-10-21 19:28:32,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.25) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:32,492 INFO L276 IsEmpty]: Start isEmpty. Operand 25100 states and 26879 transitions. [2021-10-21 19:28:32,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2021-10-21 19:28:32,501 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:32,502 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 19:28:32,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-21 19:28:32,502 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:32,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:32,503 INFO L82 PathProgramCache]: Analyzing trace with hash -135063913, now seen corresponding path program 1 times [2021-10-21 19:28:32,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:32,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348510710] [2021-10-21 19:28:32,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:32,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:32,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 901 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-21 19:28:32,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:32,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348510710] [2021-10-21 19:28:32,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348510710] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:32,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:32,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:28:32,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840167622] [2021-10-21 19:28:32,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:28:32,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:32,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:28:32,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:28:32,799 INFO L87 Difference]: Start difference. First operand 25100 states and 26879 transitions. Second operand has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:34,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:34,317 INFO L93 Difference]: Finished difference Result 57022 states and 60991 transitions. [2021-10-21 19:28:34,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:28:34,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 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 630 [2021-10-21 19:28:34,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:34,349 INFO L225 Difference]: With dead ends: 57022 [2021-10-21 19:28:34,349 INFO L226 Difference]: Without dead ends: 32476 [2021-10-21 19:28:34,360 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:28:34,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32476 states. [2021-10-21 19:28:34,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32476 to 24926. [2021-10-21 19:28:34,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24926 states, 24925 states have (on average 1.0690471414242728) internal successors, (26646), 24925 states have internal predecessors, (26646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:34,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24926 states to 24926 states and 26646 transitions. [2021-10-21 19:28:34,902 INFO L78 Accepts]: Start accepts. Automaton has 24926 states and 26646 transitions. Word has length 630 [2021-10-21 19:28:34,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:34,903 INFO L470 AbstractCegarLoop]: Abstraction has 24926 states and 26646 transitions. [2021-10-21 19:28:34,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:34,904 INFO L276 IsEmpty]: Start isEmpty. Operand 24926 states and 26646 transitions. [2021-10-21 19:28:34,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2021-10-21 19:28:34,913 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:34,914 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 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] [2021-10-21 19:28:34,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-21 19:28:34,914 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:34,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:34,915 INFO L82 PathProgramCache]: Analyzing trace with hash 969878179, now seen corresponding path program 1 times [2021-10-21 19:28:34,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:34,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825704537] [2021-10-21 19:28:34,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:34,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 673 proven. 0 refuted. 0 times theorem prover too weak. 653 trivial. 0 not checked. [2021-10-21 19:28:35,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:35,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825704537] [2021-10-21 19:28:35,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825704537] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:35,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:35,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:35,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571286251] [2021-10-21 19:28:35,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:35,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:35,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:35,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:35,232 INFO L87 Difference]: Start difference. First operand 24926 states and 26646 transitions. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:36,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:36,296 INFO L93 Difference]: Finished difference Result 51687 states and 55283 transitions. [2021-10-21 19:28:36,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:36,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 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 717 [2021-10-21 19:28:36,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:36,329 INFO L225 Difference]: With dead ends: 51687 [2021-10-21 19:28:36,329 INFO L226 Difference]: Without dead ends: 26947 [2021-10-21 19:28:36,340 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:36,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26947 states. [2021-10-21 19:28:36,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26947 to 24001. [2021-10-21 19:28:36,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24001 states, 24000 states have (on average 1.0677916666666667) internal successors, (25627), 24000 states have internal predecessors, (25627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:36,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24001 states to 24001 states and 25627 transitions. [2021-10-21 19:28:36,794 INFO L78 Accepts]: Start accepts. Automaton has 24001 states and 25627 transitions. Word has length 717 [2021-10-21 19:28:36,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:36,795 INFO L470 AbstractCegarLoop]: Abstraction has 24001 states and 25627 transitions. [2021-10-21 19:28:36,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:36,796 INFO L276 IsEmpty]: Start isEmpty. Operand 24001 states and 25627 transitions. [2021-10-21 19:28:36,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 758 [2021-10-21 19:28:36,947 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:36,947 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:36,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-21 19:28:36,948 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:36,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:36,948 INFO L82 PathProgramCache]: Analyzing trace with hash 470610289, now seen corresponding path program 1 times [2021-10-21 19:28:36,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:36,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699592353] [2021-10-21 19:28:36,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:36,949 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:37,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1484 backedges. 1018 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2021-10-21 19:28:37,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:37,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699592353] [2021-10-21 19:28:37,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699592353] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:37,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:28:37,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:28:37,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813161424] [2021-10-21 19:28:37,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:37,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:37,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:37,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:37,296 INFO L87 Difference]: Start difference. First operand 24001 states and 25627 transitions. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:38,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:38,363 INFO L93 Difference]: Finished difference Result 48372 states and 51601 transitions. [2021-10-21 19:28:38,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:38,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 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 757 [2021-10-21 19:28:38,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:38,386 INFO L225 Difference]: With dead ends: 48372 [2021-10-21 19:28:38,386 INFO L226 Difference]: Without dead ends: 24557 [2021-10-21 19:28:38,397 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:28:38,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24557 states. [2021-10-21 19:28:38,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24557 to 23080. [2021-10-21 19:28:38,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23080 states, 23079 states have (on average 1.0660340569348759) internal successors, (24603), 23079 states have internal predecessors, (24603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:38,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23080 states to 23080 states and 24603 transitions. [2021-10-21 19:28:38,835 INFO L78 Accepts]: Start accepts. Automaton has 23080 states and 24603 transitions. Word has length 757 [2021-10-21 19:28:38,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:38,836 INFO L470 AbstractCegarLoop]: Abstraction has 23080 states and 24603 transitions. [2021-10-21 19:28:38,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:38,836 INFO L276 IsEmpty]: Start isEmpty. Operand 23080 states and 24603 transitions. [2021-10-21 19:28:38,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1135 [2021-10-21 19:28:38,853 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:38,854 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 19:28:38,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-21 19:28:38,854 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:38,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:38,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1022409577, now seen corresponding path program 1 times [2021-10-21 19:28:38,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:38,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182133209] [2021-10-21 19:28:38,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:38,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3580 backedges. 2476 proven. 44 refuted. 0 times theorem prover too weak. 1060 trivial. 0 not checked. [2021-10-21 19:28:39,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:39,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182133209] [2021-10-21 19:28:39,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182133209] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:39,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483058546] [2021-10-21 19:28:39,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:39,724 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:28:39,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:28:39,725 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:28:39,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-21 19:28:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:41,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:28:41,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:28:43,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3580 backedges. 2077 proven. 0 refuted. 0 times theorem prover too weak. 1503 trivial. 0 not checked. [2021-10-21 19:28:43,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483058546] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:28:43,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:28:43,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2021-10-21 19:28:43,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595085772] [2021-10-21 19:28:43,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:28:43,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:43,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:28:43,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:28:43,807 INFO L87 Difference]: Start difference. First operand 23080 states and 24603 transitions. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:44,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:44,728 INFO L93 Difference]: Finished difference Result 42651 states and 45412 transitions. [2021-10-21 19:28:44,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:28:44,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 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 1134 [2021-10-21 19:28:44,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:44,745 INFO L225 Difference]: With dead ends: 42651 [2021-10-21 19:28:44,745 INFO L226 Difference]: Without dead ends: 14599 [2021-10-21 19:28:44,757 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1140 GetRequests, 1133 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 67.2ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:28:44,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14599 states. [2021-10-21 19:28:44,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14599 to 8326. [2021-10-21 19:28:44,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 1.0372372372372372) internal successors, (8635), 8325 states have internal predecessors, (8635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:44,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 8635 transitions. [2021-10-21 19:28:44,934 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 8635 transitions. Word has length 1134 [2021-10-21 19:28:44,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:28:44,935 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 8635 transitions. [2021-10-21 19:28:44,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:44,935 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 8635 transitions. [2021-10-21 19:28:44,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1264 [2021-10-21 19:28:44,958 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:28:44,959 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:28:44,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:28:45,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:28:45,160 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:28:45,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:28:45,160 INFO L82 PathProgramCache]: Analyzing trace with hash 865097325, now seen corresponding path program 1 times [2021-10-21 19:28:45,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:28:45,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089352160] [2021-10-21 19:28:45,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:45,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:28:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:46,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4494 backedges. 2598 proven. 277 refuted. 0 times theorem prover too weak. 1619 trivial. 0 not checked. [2021-10-21 19:28:46,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:28:46,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089352160] [2021-10-21 19:28:46,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089352160] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:46,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247474808] [2021-10-21 19:28:46,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:28:46,052 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:28:46,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:28:46,056 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:28:46,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 19:28:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:28:48,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 1587 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-21 19:28:48,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:28:56,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4494 backedges. 2985 proven. 353 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2021-10-21 19:28:56,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247474808] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:28:56,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:28:56,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 9 [2021-10-21 19:28:56,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118682832] [2021-10-21 19:28:56,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:28:56,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:28:56,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:28:56,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:28:56,784 INFO L87 Difference]: Start difference. First operand 8326 states and 8635 transitions. Second operand has 10 states, 10 states have (on average 66.9) internal successors, (669), 9 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:28:59,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:28:59,889 INFO L93 Difference]: Finished difference Result 17554 states and 18190 transitions. [2021-10-21 19:28:59,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-21 19:28:59,890 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 66.9) internal successors, (669), 9 states have internal predecessors, (669), 0 states have call successors, (0), 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 1263 [2021-10-21 19:28:59,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:28:59,899 INFO L225 Difference]: With dead ends: 17554 [2021-10-21 19:28:59,899 INFO L226 Difference]: Without dead ends: 9968 [2021-10-21 19:28:59,904 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1279 GetRequests, 1258 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 337.7ms TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2021-10-21 19:28:59,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9968 states. [2021-10-21 19:29:00,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9968 to 8510. [2021-10-21 19:29:00,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8510 states, 8509 states have (on average 1.0369021036549535) internal successors, (8823), 8509 states have internal predecessors, (8823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:00,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8510 states to 8510 states and 8823 transitions. [2021-10-21 19:29:00,097 INFO L78 Accepts]: Start accepts. Automaton has 8510 states and 8823 transitions. Word has length 1263 [2021-10-21 19:29:00,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:29:00,098 INFO L470 AbstractCegarLoop]: Abstraction has 8510 states and 8823 transitions. [2021-10-21 19:29:00,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 66.9) internal successors, (669), 9 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:00,099 INFO L276 IsEmpty]: Start isEmpty. Operand 8510 states and 8823 transitions. [2021-10-21 19:29:00,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2021-10-21 19:29:00,114 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:29:00,115 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:29:00,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:29:00,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-10-21 19:29:00,316 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:29:00,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:00,316 INFO L82 PathProgramCache]: Analyzing trace with hash -466935292, now seen corresponding path program 1 times [2021-10-21 19:29:00,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:00,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941431156] [2021-10-21 19:29:00,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:00,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:01,083 INFO L134 CoverageAnalysis]: Checked inductivity of 5491 backedges. 3241 proven. 1173 refuted. 0 times theorem prover too weak. 1077 trivial. 0 not checked. [2021-10-21 19:29:01,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:29:01,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941431156] [2021-10-21 19:29:01,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941431156] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:29:01,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694693462] [2021-10-21 19:29:01,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:01,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:29:01,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:29:01,087 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:29:01,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-21 19:29:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:04,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:29:04,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:29:07,937 INFO L134 CoverageAnalysis]: Checked inductivity of 5491 backedges. 3429 proven. 0 refuted. 0 times theorem prover too weak. 2062 trivial. 0 not checked. [2021-10-21 19:29:07,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694693462] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:29:07,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:29:07,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2021-10-21 19:29:07,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289759197] [2021-10-21 19:29:07,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:29:07,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:29:07,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:29:07,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:29:07,942 INFO L87 Difference]: Start difference. First operand 8510 states and 8823 transitions. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:08,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:29:08,661 INFO L93 Difference]: Finished difference Result 10923 states and 11289 transitions. [2021-10-21 19:29:08,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:29:08,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 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 1376 [2021-10-21 19:29:08,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:29:08,663 INFO L225 Difference]: With dead ends: 10923 [2021-10-21 19:29:08,663 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:29:08,666 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1382 GetRequests, 1377 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 28.6ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:29:08,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:29:08,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:29:08,667 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) [2021-10-21 19:29:08,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:29:08,667 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1376 [2021-10-21 19:29:08,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:29:08,667 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:29:08,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:29:08,667 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:29:08,668 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:29:08,670 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:29:08,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-21 19:29:08,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-10-21 19:29:08,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:29:08,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:29:21,048 WARN L207 SmtUtils]: Spent 12.16 s on a formula simplification. DAG size of input: 2036 DAG size of output: 1502 [2021-10-21 19:29:21,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:29:30,529 WARN L207 SmtUtils]: Spent 9.47 s on a formula simplification. DAG size of input: 2033 DAG size of output: 1502 [2021-10-21 19:29:30,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:29:48,170 WARN L207 SmtUtils]: Spent 17.61 s on a formula simplification. DAG size of input: 1322 DAG size of output: 166 [2021-10-21 19:30:06,002 WARN L207 SmtUtils]: Spent 17.82 s on a formula simplification. DAG size of input: 1322 DAG size of output: 166 [2021-10-21 19:30:06,006 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-10-21 19:30:06,006 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,006 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-10-21 19:30:06,006 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,007 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,007 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,007 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,007 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,007 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,007 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-10-21 19:30:06,007 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-10-21 19:30:06,007 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-10-21 19:30:06,007 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,008 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,008 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,008 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,008 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,008 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,008 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,008 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,008 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,008 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,009 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-10-21 19:30:06,009 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-10-21 19:30:06,009 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-10-21 19:30:06,009 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,009 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-10-21 19:30:06,009 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-10-21 19:30:06,009 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,009 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,009 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,009 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,010 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,010 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,010 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-10-21 19:30:06,010 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-10-21 19:30:06,010 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-10-21 19:30:06,011 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,011 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,011 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,012 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse1 (= ~a25~0 12)) (.cse18 (<= 307 ~a23~0)) (.cse21 (<= ~a23~0 312)) (.cse25 (= ~a25~0 13)) (.cse2 (<= ~a29~0 274)) (.cse9 (<= 130 ~a29~0)) (.cse29 (<= 260 ~a29~0)) (.cse22 (<= ~a25~0 10)) (.cse7 (<= ~a23~0 247)) (.cse4 (= ~a4~0 1))) (let ((.cse10 (<= 0 (+ 589264 ~a29~0))) (.cse8 (= ~a25~0 11)) (.cse20 (<= 21782 ~a23~0)) (.cse14 (<= ~a29~0 130)) (.cse15 (<= (+ ~a23~0 43) 0)) (.cse24 (<= 253 ~a29~0)) (.cse23 (<= 93781 ~a29~0)) (.cse16 (<= ~a25~0 9)) (.cse6 (<= 246 ~a29~0)) (.cse11 (<= (+ ~a23~0 55) 0)) (.cse17 (< 140 ~a29~0)) (.cse27 (<= ~a29~0 245)) (.cse13 (<= ~a4~0 0)) (.cse0 (<= ~a23~0 600000)) (.cse26 (= ~a25~0 10)) (.cse28 (let ((.cse30 (<= 115953 ~a29~0))) (or (and .cse1 .cse7 .cse2 .cse4 .cse9) (and .cse25 .cse18 .cse4 .cse21 .cse30) (and .cse25 .cse7 .cse2 .cse4 .cse9) (and .cse29 .cse7 .cse22 .cse4) (and .cse7 .cse4 .cse30)))) (.cse12 (<= 0 (+ ~a23~0 599772))) (.cse3 (= ~a3~0 1)) (.cse5 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse4 .cse5 .cse9) (and .cse10 .cse11 .cse1 .cse12 (not (= 3 ULTIMATE.start_calculate_output_~input)) .cse3 .cse5 .cse13 .cse14) (and .cse1 .cse12 .cse7 .cse3 .cse4 .cse5) (and .cse15 (<= 10250 ~a29~0) .cse3 .cse16 .cse5) (and .cse5 (let ((.cse19 (<= ~a29~0 220))) (or (and .cse0 .cse1 .cse17 .cse18 .cse3 .cse19 .cse4) (and .cse0 .cse17 .cse8 .cse3 .cse19 .cse4) (and .cse0 .cse1 .cse17 .cse3 .cse20 .cse4 (<= ~a29~0 232)) (and .cse0 .cse17 .cse8 .cse3 .cse20 .cse4) (and .cse8 (<= 192 ~a29~0) .cse3 .cse4 .cse21)))) (and .cse12 (<= ~a29~0 140) .cse3 .cse4 .cse21 .cse16 .cse5) (and (or (and .cse15 .cse10 .cse8 .cse14) (and .cse15 .cse10 .cse22 .cse14)) .cse3 .cse5) (and .cse12 .cse8 .cse3 .cse4 .cse23 .cse5 .cse6) (and .cse12 .cse7 .cse8 .cse2 .cse3 .cse24 .cse5) (and .cse25 .cse15 .cse12 .cse2 .cse3 .cse24 .cse5) (and .cse3 .cse4 .cse23 .cse5 .cse26) (and .cse0 .cse12 .cse8 .cse3 .cse4 .cse5 .cse6) (and .cse25 .cse0 .cse17 .cse2 .cse3 .cse4 .cse5) (and .cse17 .cse22 .cse27 .cse3 .cse20 .cse4 .cse5) (and .cse17 (or (and .cse25 .cse12 .cse3 .cse4 .cse23 .cse21 .cse5) (and .cse28 .cse3 .cse5))) (and (or (and .cse25 .cse0 .cse12 .cse4 .cse14) (and .cse25 .cse0 .cse18 .cse4)) .cse3 .cse5) (and .cse0 (or (and .cse18 .cse3 .cse5 .cse6) (and .cse29 .cse3 .cse5)) .cse4 .cse16) (and .cse15 (or (and .cse1 .cse12 .cse2 .cse3 .cse5 .cse6) (and .cse1 .cse2 .cse3 .cse24 .cse5))) (and .cse0 .cse1 .cse18 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse4 .cse5 .cse26) (and (<= ~a29~0 275) .cse1 .cse3 .cse5 .cse6 .cse13) (and .cse3 .cse4 .cse23 .cse16 .cse5) (and .cse12 .cse7 .cse22 .cse3 .cse4 .cse5 .cse6) (and .cse11 .cse1 .cse17 .cse27 .cse3 .cse5 .cse13) (and .cse0 .cse3 .cse4 .cse5 .cse26) (and .cse28 .cse12 .cse3 .cse5)))) [2021-10-21 19:30:06,012 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,012 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-10-21 19:30:06,012 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-10-21 19:30:06,012 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,013 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,013 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,013 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,013 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,013 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,014 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-10-21 19:30:06,014 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-10-21 19:30:06,014 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-10-21 19:30:06,014 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-10-21 19:30:06,014 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,014 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,015 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,015 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,015 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,015 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,015 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,016 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-10-21 19:30:06,016 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-10-21 19:30:06,016 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-10-21 19:30:06,016 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,016 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,017 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,017 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,017 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,017 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,017 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,017 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,017 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,018 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-21 19:30:06,018 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-10-21 19:30:06,018 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-10-21 19:30:06,018 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,019 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse1 (= ~a25~0 12)) (.cse18 (<= 307 ~a23~0)) (.cse21 (<= ~a23~0 312)) (.cse25 (= ~a25~0 13)) (.cse2 (<= ~a29~0 274)) (.cse9 (<= 130 ~a29~0)) (.cse29 (<= 260 ~a29~0)) (.cse22 (<= ~a25~0 10)) (.cse7 (<= ~a23~0 247)) (.cse4 (= ~a4~0 1))) (let ((.cse10 (<= 0 (+ 589264 ~a29~0))) (.cse8 (= ~a25~0 11)) (.cse20 (<= 21782 ~a23~0)) (.cse14 (<= ~a29~0 130)) (.cse15 (<= (+ ~a23~0 43) 0)) (.cse24 (<= 253 ~a29~0)) (.cse23 (<= 93781 ~a29~0)) (.cse16 (<= ~a25~0 9)) (.cse6 (<= 246 ~a29~0)) (.cse11 (<= (+ ~a23~0 55) 0)) (.cse17 (< 140 ~a29~0)) (.cse27 (<= ~a29~0 245)) (.cse13 (<= ~a4~0 0)) (.cse0 (<= ~a23~0 600000)) (.cse26 (= ~a25~0 10)) (.cse28 (let ((.cse30 (<= 115953 ~a29~0))) (or (and .cse1 .cse7 .cse2 .cse4 .cse9) (and .cse25 .cse18 .cse4 .cse21 .cse30) (and .cse25 .cse7 .cse2 .cse4 .cse9) (and .cse29 .cse7 .cse22 .cse4) (and .cse7 .cse4 .cse30)))) (.cse12 (<= 0 (+ ~a23~0 599772))) (.cse3 (= ~a3~0 1)) (.cse5 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse4 .cse5 .cse9) (and .cse10 .cse11 .cse1 .cse12 (not (= 3 ULTIMATE.start_calculate_output_~input)) .cse3 .cse5 .cse13 .cse14) (and .cse1 .cse12 .cse7 .cse3 .cse4 .cse5) (and .cse15 (<= 10250 ~a29~0) .cse3 .cse16 .cse5) (and .cse5 (let ((.cse19 (<= ~a29~0 220))) (or (and .cse0 .cse1 .cse17 .cse18 .cse3 .cse19 .cse4) (and .cse0 .cse17 .cse8 .cse3 .cse19 .cse4) (and .cse0 .cse1 .cse17 .cse3 .cse20 .cse4 (<= ~a29~0 232)) (and .cse0 .cse17 .cse8 .cse3 .cse20 .cse4) (and .cse8 (<= 192 ~a29~0) .cse3 .cse4 .cse21)))) (and .cse12 (<= ~a29~0 140) .cse3 .cse4 .cse21 .cse16 .cse5) (and (or (and .cse15 .cse10 .cse8 .cse14) (and .cse15 .cse10 .cse22 .cse14)) .cse3 .cse5) (and .cse12 .cse8 .cse3 .cse4 .cse23 .cse5 .cse6) (and .cse12 .cse7 .cse8 .cse2 .cse3 .cse24 .cse5) (and .cse25 .cse15 .cse12 .cse2 .cse3 .cse24 .cse5) (and .cse3 .cse4 .cse23 .cse5 .cse26) (and .cse0 .cse12 .cse8 .cse3 .cse4 .cse5 .cse6) (and .cse25 .cse0 .cse17 .cse2 .cse3 .cse4 .cse5) (and .cse17 .cse22 .cse27 .cse3 .cse20 .cse4 .cse5) (and .cse17 (or (and .cse25 .cse12 .cse3 .cse4 .cse23 .cse21 .cse5) (and .cse28 .cse3 .cse5))) (and (or (and .cse25 .cse0 .cse12 .cse4 .cse14) (and .cse25 .cse0 .cse18 .cse4)) .cse3 .cse5) (and .cse0 (or (and .cse18 .cse3 .cse5 .cse6) (and .cse29 .cse3 .cse5)) .cse4 .cse16) (and .cse15 (or (and .cse1 .cse12 .cse2 .cse3 .cse5 .cse6) (and .cse1 .cse2 .cse3 .cse24 .cse5))) (and .cse0 .cse1 .cse18 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse4 .cse5 .cse26) (and (<= ~a29~0 275) .cse1 .cse3 .cse5 .cse6 .cse13) (and .cse3 .cse4 .cse23 .cse16 .cse5) (and .cse12 .cse7 .cse22 .cse3 .cse4 .cse5 .cse6) (and .cse11 .cse1 .cse17 .cse27 .cse3 .cse5 .cse13) (and .cse0 .cse3 .cse4 .cse5 .cse26) (and .cse28 .cse12 .cse3 .cse5)))) [2021-10-21 19:30:06,019 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,019 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,019 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,020 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,020 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,020 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,020 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,020 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,021 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-10-21 19:30:06,021 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-10-21 19:30:06,021 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-10-21 19:30:06,021 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-10-21 19:30:06,021 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-10-21 19:30:06,021 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-10-21 19:30:06,022 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-10-21 19:30:06,022 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,022 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,022 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,022 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,023 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,023 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,023 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,023 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,023 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,024 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,024 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:30:06,024 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-10-21 19:30:06,024 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-10-21 19:30:06,024 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-10-21 19:30:06,025 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-10-21 19:30:06,025 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,025 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,025 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,025 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,025 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,025 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-10-21 19:30:06,025 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-10-21 19:30:06,025 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-10-21 19:30:06,025 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,026 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,026 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,026 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,026 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-10-21 19:30:06,026 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-10-21 19:30:06,026 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,026 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,027 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,027 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,027 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,027 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,027 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-10-21 19:30:06,027 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-10-21 19:30:06,027 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,027 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,027 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-10-21 19:30:06,028 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-10-21 19:30:06,028 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-10-21 19:30:06,028 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:30:06,028 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2021-10-21 19:30:06,028 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,028 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,028 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,028 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,028 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,028 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,028 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,029 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-10-21 19:30:06,029 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-10-21 19:30:06,029 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-10-21 19:30:06,029 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-10-21 19:30:06,029 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-10-21 19:30:06,029 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-10-21 19:30:06,029 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-10-21 19:30:06,029 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,029 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,029 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-10-21 19:30:06,029 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-10-21 19:30:06,029 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,030 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,030 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,030 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,030 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,030 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-10-21 19:30:06,030 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-10-21 19:30:06,030 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-21 19:30:06,031 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,031 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,031 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,031 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,031 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,031 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,031 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-10-21 19:30:06,031 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-10-21 19:30:06,032 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-10-21 19:30:06,032 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,032 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,032 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,032 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,032 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,032 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,033 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,033 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,033 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-10-21 19:30:06,033 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-10-21 19:30:06,033 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-10-21 19:30:06,034 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,034 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,034 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,034 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,034 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,034 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,035 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,035 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,035 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,035 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,035 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,036 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-10-21 19:30:06,036 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-10-21 19:30:06,036 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-21 19:30:06,036 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-10-21 19:30:06,036 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-10-21 19:30:06,036 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,037 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,037 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,037 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,037 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,037 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,038 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,038 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-10-21 19:30:06,038 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-10-21 19:30:06,038 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-10-21 19:30:06,038 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,038 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,039 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,039 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-10-21 19:30:06,039 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-10-21 19:30:06,039 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,039 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,040 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,040 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,040 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,040 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-10-21 19:30:06,040 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-10-21 19:30:06,040 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,041 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,041 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-10-21 19:30:06,041 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-10-21 19:30:06,041 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,041 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:30:06,042 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,042 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,042 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,042 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,042 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,042 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-10-21 19:30:06,043 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-10-21 19:30:06,043 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-10-21 19:30:06,043 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-10-21 19:30:06,043 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,043 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,044 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,044 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,044 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,044 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,044 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,044 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,045 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-10-21 19:30:06,045 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-10-21 19:30:06,045 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-10-21 19:30:06,045 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-10-21 19:30:06,045 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-10-21 19:30:06,046 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-10-21 19:30:06,046 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,046 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,046 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,046 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,046 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,047 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,047 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,047 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-10-21 19:30:06,047 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-10-21 19:30:06,047 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:30:06,048 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,048 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,048 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,048 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,048 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,048 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,049 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-10-21 19:30:06,049 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-10-21 19:30:06,049 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,049 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,049 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,050 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,050 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,050 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,050 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,050 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-10-21 19:30:06,051 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-10-21 19:30:06,051 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,051 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,051 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-10-21 19:30:06,051 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-10-21 19:30:06,051 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-21 19:30:06,052 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-10-21 19:30:06,057 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:30:06,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:30:06 BoogieIcfgContainer [2021-10-21 19:30:06,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:30:06,116 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:30:06,116 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:30:06,117 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:30:06,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:27:14" (3/4) ... [2021-10-21 19:30:06,121 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:30:06,179 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-21 19:30:06,182 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 19:30:06,184 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:30:06,187 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:30:06,396 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:30:06,396 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:30:06,398 INFO L168 Benchmark]: Toolchain (without parser) took 174938.85 ms. Allocated memory was 111.1 MB in the beginning and 7.1 GB in the end (delta: 7.0 GB). Free memory was 66.4 MB in the beginning and 4.2 GB in the end (delta: -4.1 GB). Peak memory consumption was 2.9 GB. Max. memory is 16.1 GB. [2021-10-21 19:30:06,399 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 111.1 MB. Free memory is still 85.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:30:06,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 893.26 ms. Allocated memory is still 111.1 MB. Free memory was 66.2 MB in the beginning and 52.5 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:06,400 INFO L168 Benchmark]: Boogie Procedure Inliner took 204.67 ms. Allocated memory was 111.1 MB in the beginning and 136.3 MB in the end (delta: 25.2 MB). Free memory was 52.5 MB in the beginning and 95.8 MB in the end (delta: -43.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:06,402 INFO L168 Benchmark]: Boogie Preprocessor took 152.15 ms. Allocated memory is still 136.3 MB. Free memory was 95.8 MB in the beginning and 86.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:06,402 INFO L168 Benchmark]: RCFGBuilder took 1894.40 ms. Allocated memory is still 136.3 MB. Free memory was 86.5 MB in the beginning and 62.2 MB in the end (delta: 24.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:06,403 INFO L168 Benchmark]: TraceAbstraction took 171503.04 ms. Allocated memory was 136.3 MB in the beginning and 7.1 GB in the end (delta: 7.0 GB). Free memory was 61.7 MB in the beginning and 4.2 GB in the end (delta: -4.1 GB). Peak memory consumption was 5.5 GB. Max. memory is 16.1 GB. [2021-10-21 19:30:06,403 INFO L168 Benchmark]: Witness Printer took 280.06 ms. Allocated memory is still 7.1 GB. Free memory was 4.2 GB in the beginning and 4.2 GB in the end (delta: 25.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:06,411 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 111.1 MB. Free memory is still 85.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 893.26 ms. Allocated memory is still 111.1 MB. Free memory was 66.2 MB in the beginning and 52.5 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 204.67 ms. Allocated memory was 111.1 MB in the beginning and 136.3 MB in the end (delta: 25.2 MB). Free memory was 52.5 MB in the beginning and 95.8 MB in the end (delta: -43.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 152.15 ms. Allocated memory is still 136.3 MB. Free memory was 95.8 MB in the beginning and 86.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1894.40 ms. Allocated memory is still 136.3 MB. Free memory was 86.5 MB in the beginning and 62.2 MB in the end (delta: 24.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 171503.04 ms. Allocated memory was 136.3 MB in the beginning and 7.1 GB in the end (delta: 7.0 GB). Free memory was 61.7 MB in the beginning and 4.2 GB in the end (delta: -4.1 GB). Peak memory consumption was 5.5 GB. Max. memory is 16.1 GB. * Witness Printer took 280.06 ms. Allocated memory is still 7.1 GB. Free memory was 4.2 GB in the beginning and 4.2 GB in the end (delta: 25.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 169]: 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, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 171370.1ms, OverallIterations: 35, TraceHistogramMax: 11, EmptinessCheckTime: 593.8ms, AutomataDifference: 51766.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 57134.5ms, InitialAbstractionConstructionTime: 17.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4990 SDtfs, 12235 SDslu, 1238 SDs, 0 SdLazy, 39020 SolverSat, 6004 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34890.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6748 GetRequests, 6605 SyntacticMatches, 2 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 1408.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=40028occurred in iteration=28, InterpolantAutomatonStates: 182, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 10250.5ms AutomataMinimizationTime, 35 MinimizatonAttempts, 91538 StatesRemovedByMinimization, 34 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 159 NumberOfFragments, 1767 HoareAnnotationTreeSize, 3 FomulaSimplifications, 160240540 FormulaSimplificationTreeSizeReduction, 21659.6ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 13660032 FormulaSimplificationTreeSizeReductionInter, 35443.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 957.9ms SsaConstructionTime, 3781.7ms SatisfiabilityAnalysisTime, 35410.2ms InterpolantComputationTime, 22074 NumberOfCodeBlocks, 22074 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 22030 ConstructedInterpolants, 0 QuantifiedInterpolants, 80182 SizeOfPredicates, 15 NumberOfNonLiveVariables, 8586 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 44 InterpolantComputations, 30 PerfectInterpolantSequences, 42057/45397 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: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((a23 <= 600000 && a25 == 12) && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29) || ((((a23 <= 247 && a25 == 11) && a4 == 1) && a8 == 15) && 130 <= a29)) || ((((((((0 <= 589264 + a29 && a23 + 55 <= 0) && a25 == 12) && 0 <= a23 + 599772) && !(3 == input)) && a3 == 1) && a8 == 15) && a4 <= 0) && a29 <= 130)) || (((((a25 == 12 && 0 <= a23 + 599772) && a23 <= 247) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a23 + 43 <= 0 && 10250 <= a29) && a3 == 1) && a25 <= 9) && a8 == 15)) || (a8 == 15 && ((((((((((a23 <= 600000 && a25 == 12) && 140 < a29) && 307 <= a23) && a3 == 1) && a29 <= 220) && a4 == 1) || (((((a23 <= 600000 && 140 < a29) && a25 == 11) && a3 == 1) && a29 <= 220) && a4 == 1)) || ((((((a23 <= 600000 && a25 == 12) && 140 < a29) && a3 == 1) && 21782 <= a23) && a4 == 1) && a29 <= 232)) || (((((a23 <= 600000 && 140 < a29) && a25 == 11) && a3 == 1) && 21782 <= a23) && a4 == 1)) || ((((a25 == 11 && 192 <= a29) && a3 == 1) && a4 == 1) && a23 <= 312)))) || ((((((0 <= a23 + 599772 && a29 <= 140) && a3 == 1) && a4 == 1) && a23 <= 312) && a25 <= 9) && a8 == 15)) || ((((((a23 + 43 <= 0 && 0 <= 589264 + a29) && a25 == 11) && a29 <= 130) || (((a23 + 43 <= 0 && 0 <= 589264 + a29) && a25 <= 10) && a29 <= 130)) && a3 == 1) && a8 == 15)) || ((((((0 <= a23 + 599772 && a25 == 11) && a3 == 1) && a4 == 1) && 93781 <= a29) && a8 == 15) && 246 <= a29)) || ((((((0 <= a23 + 599772 && a23 <= 247) && a25 == 11) && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15)) || ((((((a25 == 13 && a23 + 43 <= 0) && 0 <= a23 + 599772) && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15)) || ((((a3 == 1 && a4 == 1) && 93781 <= a29) && a8 == 15) && a25 == 10)) || ((((((a23 <= 600000 && 0 <= a23 + 599772) && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || ((((((a25 == 13 && a23 <= 600000) && 140 < a29) && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((140 < a29 && a25 <= 10) && a29 <= 245) && a3 == 1) && 21782 <= a23) && a4 == 1) && a8 == 15)) || (140 < a29 && (((((((a25 == 13 && 0 <= a23 + 599772) && a3 == 1) && a4 == 1) && 93781 <= a29) && a23 <= 312) && a8 == 15) || ((((((((((a25 == 12 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29) || ((((a25 == 13 && 307 <= a23) && a4 == 1) && a23 <= 312) && 115953 <= a29)) || ((((a25 == 13 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29)) || (((260 <= a29 && a23 <= 247) && a25 <= 10) && a4 == 1)) || ((a23 <= 247 && a4 == 1) && 115953 <= a29)) && a3 == 1) && a8 == 15)))) || (((((((a25 == 13 && a23 <= 600000) && 0 <= a23 + 599772) && a4 == 1) && a29 <= 130) || (((a25 == 13 && a23 <= 600000) && 307 <= a23) && a4 == 1)) && a3 == 1) && a8 == 15)) || (((a23 <= 600000 && ((((307 <= a23 && a3 == 1) && a8 == 15) && 246 <= a29) || ((260 <= a29 && a3 == 1) && a8 == 15))) && a4 == 1) && a25 <= 9)) || (a23 + 43 <= 0 && ((((((a25 == 12 && 0 <= a23 + 599772) && a29 <= 274) && a3 == 1) && a8 == 15) && 246 <= a29) || ((((a25 == 12 && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15)))) || ((((((a23 <= 600000 && a25 == 12) && 307 <= a23) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || (((a23 <= 247 && a4 == 1) && a8 == 15) && a25 == 10)) || (((((a29 <= 275 && a25 == 12) && a3 == 1) && a8 == 15) && 246 <= a29) && a4 <= 0)) || ((((a3 == 1 && a4 == 1) && 93781 <= a29) && a25 <= 9) && a8 == 15)) || ((((((0 <= a23 + 599772 && a23 <= 247) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || ((((((a23 + 55 <= 0 && a25 == 12) && 140 < a29) && a29 <= 245) && a3 == 1) && a8 == 15) && a4 <= 0)) || ((((a23 <= 600000 && a3 == 1) && a4 == 1) && a8 == 15) && a25 == 10)) || (((((((((((a25 == 12 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29) || ((((a25 == 13 && 307 <= a23) && a4 == 1) && a23 <= 312) && 115953 <= a29)) || ((((a25 == 13 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29)) || (((260 <= a29 && a23 <= 247) && a25 <= 10) && a4 == 1)) || ((a23 <= 247 && a4 == 1) && 115953 <= a29)) && 0 <= a23 + 599772) && a3 == 1) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((a23 <= 600000 && a25 == 12) && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29) || ((((a23 <= 247 && a25 == 11) && a4 == 1) && a8 == 15) && 130 <= a29)) || ((((((((0 <= 589264 + a29 && a23 + 55 <= 0) && a25 == 12) && 0 <= a23 + 599772) && !(3 == input)) && a3 == 1) && a8 == 15) && a4 <= 0) && a29 <= 130)) || (((((a25 == 12 && 0 <= a23 + 599772) && a23 <= 247) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a23 + 43 <= 0 && 10250 <= a29) && a3 == 1) && a25 <= 9) && a8 == 15)) || (a8 == 15 && ((((((((((a23 <= 600000 && a25 == 12) && 140 < a29) && 307 <= a23) && a3 == 1) && a29 <= 220) && a4 == 1) || (((((a23 <= 600000 && 140 < a29) && a25 == 11) && a3 == 1) && a29 <= 220) && a4 == 1)) || ((((((a23 <= 600000 && a25 == 12) && 140 < a29) && a3 == 1) && 21782 <= a23) && a4 == 1) && a29 <= 232)) || (((((a23 <= 600000 && 140 < a29) && a25 == 11) && a3 == 1) && 21782 <= a23) && a4 == 1)) || ((((a25 == 11 && 192 <= a29) && a3 == 1) && a4 == 1) && a23 <= 312)))) || ((((((0 <= a23 + 599772 && a29 <= 140) && a3 == 1) && a4 == 1) && a23 <= 312) && a25 <= 9) && a8 == 15)) || ((((((a23 + 43 <= 0 && 0 <= 589264 + a29) && a25 == 11) && a29 <= 130) || (((a23 + 43 <= 0 && 0 <= 589264 + a29) && a25 <= 10) && a29 <= 130)) && a3 == 1) && a8 == 15)) || ((((((0 <= a23 + 599772 && a25 == 11) && a3 == 1) && a4 == 1) && 93781 <= a29) && a8 == 15) && 246 <= a29)) || ((((((0 <= a23 + 599772 && a23 <= 247) && a25 == 11) && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15)) || ((((((a25 == 13 && a23 + 43 <= 0) && 0 <= a23 + 599772) && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15)) || ((((a3 == 1 && a4 == 1) && 93781 <= a29) && a8 == 15) && a25 == 10)) || ((((((a23 <= 600000 && 0 <= a23 + 599772) && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || ((((((a25 == 13 && a23 <= 600000) && 140 < a29) && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((140 < a29 && a25 <= 10) && a29 <= 245) && a3 == 1) && 21782 <= a23) && a4 == 1) && a8 == 15)) || (140 < a29 && (((((((a25 == 13 && 0 <= a23 + 599772) && a3 == 1) && a4 == 1) && 93781 <= a29) && a23 <= 312) && a8 == 15) || ((((((((((a25 == 12 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29) || ((((a25 == 13 && 307 <= a23) && a4 == 1) && a23 <= 312) && 115953 <= a29)) || ((((a25 == 13 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29)) || (((260 <= a29 && a23 <= 247) && a25 <= 10) && a4 == 1)) || ((a23 <= 247 && a4 == 1) && 115953 <= a29)) && a3 == 1) && a8 == 15)))) || (((((((a25 == 13 && a23 <= 600000) && 0 <= a23 + 599772) && a4 == 1) && a29 <= 130) || (((a25 == 13 && a23 <= 600000) && 307 <= a23) && a4 == 1)) && a3 == 1) && a8 == 15)) || (((a23 <= 600000 && ((((307 <= a23 && a3 == 1) && a8 == 15) && 246 <= a29) || ((260 <= a29 && a3 == 1) && a8 == 15))) && a4 == 1) && a25 <= 9)) || (a23 + 43 <= 0 && ((((((a25 == 12 && 0 <= a23 + 599772) && a29 <= 274) && a3 == 1) && a8 == 15) && 246 <= a29) || ((((a25 == 12 && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15)))) || ((((((a23 <= 600000 && a25 == 12) && 307 <= a23) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || (((a23 <= 247 && a4 == 1) && a8 == 15) && a25 == 10)) || (((((a29 <= 275 && a25 == 12) && a3 == 1) && a8 == 15) && 246 <= a29) && a4 <= 0)) || ((((a3 == 1 && a4 == 1) && 93781 <= a29) && a25 <= 9) && a8 == 15)) || ((((((0 <= a23 + 599772 && a23 <= 247) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || ((((((a23 + 55 <= 0 && a25 == 12) && 140 < a29) && a29 <= 245) && a3 == 1) && a8 == 15) && a4 <= 0)) || ((((a23 <= 600000 && a3 == 1) && a4 == 1) && a8 == 15) && a25 == 10)) || (((((((((((a25 == 12 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29) || ((((a25 == 13 && 307 <= a23) && a4 == 1) && a23 <= 312) && 115953 <= a29)) || ((((a25 == 13 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29)) || (((260 <= a29 && a23 <= 247) && a25 <= 10) && a4 == 1)) || ((a23 <= 247 && a4 == 1) && 115953 <= a29)) && 0 <= a23 + 599772) && a3 == 1) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-21 19:30:06,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16297d80-dbb6-4683-bfa2-64c412f696fa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...