./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label22.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_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/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_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/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_ae4800ae-a807-4412-9d5b-51aa38a82cf3/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 782212e92ca4a15b07e81f4c0ca47da63585acb1e5a128bc81275e5c438e9fe1 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:26:06,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:26:06,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:26:07,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:26:07,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:26:07,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:26:07,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:26:07,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:26:07,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:26:07,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:26:07,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:26:07,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:26:07,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:26:07,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:26:07,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:26:07,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:26:07,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:26:07,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:26:07,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:26:07,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:26:07,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:26:07,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:26:07,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:26:07,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:26:07,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:26:07,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:26:07,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:26:07,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:26:07,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:26:07,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:26:07,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:26:07,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:26:07,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:26:07,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:26:07,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:26:07,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:26:07,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:26:07,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:26:07,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:26:07,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:26:07,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:26:07,053 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:26:07,094 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:26:07,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:26:07,094 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:26:07,094 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:26:07,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:26:07,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:26:07,099 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:26:07,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:26:07,100 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:26:07,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:26:07,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:26:07,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:26:07,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:26:07,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:26:07,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:26:07,102 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:26:07,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:26:07,102 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:26:07,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:26:07,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:26:07,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:26:07,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:26:07,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:26:07,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:26:07,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:26:07,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:26:07,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:26:07,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:26:07,105 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:26:07,106 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:26:07,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:26:07,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:26:07,107 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_ae4800ae-a807-4412-9d5b-51aa38a82cf3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 782212e92ca4a15b07e81f4c0ca47da63585acb1e5a128bc81275e5c438e9fe1 [2021-10-21 20:26:07,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:26:07,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:26:07,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:26:07,413 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:26:07,414 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:26:07,415 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/eca-rers2012/Problem11_label22.c [2021-10-21 20:26:07,494 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/data/31641ce9c/391e40b134054c278eb6c81bb5dbb6fd/FLAGcec01db60 [2021-10-21 20:26:08,208 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:26:08,208 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/sv-benchmarks/c/eca-rers2012/Problem11_label22.c [2021-10-21 20:26:08,233 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/data/31641ce9c/391e40b134054c278eb6c81bb5dbb6fd/FLAGcec01db60 [2021-10-21 20:26:08,436 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/data/31641ce9c/391e40b134054c278eb6c81bb5dbb6fd [2021-10-21 20:26:08,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:26:08,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:26:08,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:26:08,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:26:08,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:26:08,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:26:08" (1/1) ... [2021-10-21 20:26:08,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c4507db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:08, skipping insertion in model container [2021-10-21 20:26:08,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:26:08" (1/1) ... [2021-10-21 20:26:08,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:26:08,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:26:08,851 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/sv-benchmarks/c/eca-rers2012/Problem11_label22.c[8004,8017] [2021-10-21 20:26:09,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:26:09,169 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:26:09,210 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_ae4800ae-a807-4412-9d5b-51aa38a82cf3/sv-benchmarks/c/eca-rers2012/Problem11_label22.c[8004,8017] [2021-10-21 20:26:09,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:26:09,365 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:26:09,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:09 WrapperNode [2021-10-21 20:26:09,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:26:09,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:26:09,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:26:09,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:26:09,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:09" (1/1) ... [2021-10-21 20:26:09,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:09" (1/1) ... [2021-10-21 20:26:09,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:26:09,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:26:09,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:26:09,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:26:09,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:09" (1/1) ... [2021-10-21 20:26:09,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:09" (1/1) ... [2021-10-21 20:26:09,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:09" (1/1) ... [2021-10-21 20:26:09,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:09" (1/1) ... [2021-10-21 20:26:09,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:09" (1/1) ... [2021-10-21 20:26:09,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:09" (1/1) ... [2021-10-21 20:26:09,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:09" (1/1) ... [2021-10-21 20:26:09,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:26:09,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:26:09,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:26:09,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:26:09,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:09" (1/1) ... [2021-10-21 20:26:09,708 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:26:09,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:26:09,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:26:09,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:26:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:26:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:26:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:26:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:26:11,534 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:26:11,534 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 20:26:11,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:26:11 BoogieIcfgContainer [2021-10-21 20:26:11,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:26:11,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:26:11,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:26:11,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:26:11,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:26:08" (1/3) ... [2021-10-21 20:26:11,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f88fb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:26:11, skipping insertion in model container [2021-10-21 20:26:11,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:09" (2/3) ... [2021-10-21 20:26:11,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f88fb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:26:11, skipping insertion in model container [2021-10-21 20:26:11,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:26:11" (3/3) ... [2021-10-21 20:26:11,545 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label22.c [2021-10-21 20:26:11,550 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:26:11,550 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:26:11,597 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:26:11,604 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 20:26:11,604 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 20:26:11,628 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 20:26:11,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-21 20:26:11,637 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:11,637 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:26:11,638 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:11,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:11,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1246856209, now seen corresponding path program 1 times [2021-10-21 20:26:11,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:11,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672177258] [2021-10-21 20:26:11,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:11,654 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:11,983 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 20:26:11,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:11,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672177258] [2021-10-21 20:26:11,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672177258] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:11,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:11,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:26:11,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130707949] [2021-10-21 20:26:11,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:11,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:12,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:12,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:12,016 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 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 20:26:13,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:13,330 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2021-10-21 20:26:13,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:13,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2021-10-21 20:26:13,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:13,347 INFO L225 Difference]: With dead ends: 761 [2021-10-21 20:26:13,347 INFO L226 Difference]: Without dead ends: 413 [2021-10-21 20:26:13,351 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:13,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-10-21 20:26:13,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2021-10-21 20:26:13,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.453883495145631) internal successors, (599), 412 states have internal predecessors, (599), 0 states have call successors, (0), 0 states 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 20:26:13,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2021-10-21 20:26:13,420 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 55 [2021-10-21 20:26:13,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:13,421 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2021-10-21 20:26:13,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 20:26:13,422 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2021-10-21 20:26:13,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-10-21 20:26:13,430 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:13,430 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:26:13,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:26:13,431 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:13,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:13,435 INFO L82 PathProgramCache]: Analyzing trace with hash -149441032, now seen corresponding path program 1 times [2021-10-21 20:26:13,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:13,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868819185] [2021-10-21 20:26:13,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:13,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:13,604 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:26:13,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:13,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868819185] [2021-10-21 20:26:13,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868819185] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:13,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:13,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:26:13,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576056094] [2021-10-21 20:26:13,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:13,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:13,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:13,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:13,613 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 20:26:14,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:14,505 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2021-10-21 20:26:14,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:14,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2021-10-21 20:26:14,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:14,511 INFO L225 Difference]: With dead ends: 1211 [2021-10-21 20:26:14,511 INFO L226 Difference]: Without dead ends: 800 [2021-10-21 20:26:14,513 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 20:26:14,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-10-21 20:26:14,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2021-10-21 20:26:14,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3743654822335025) internal successors, (1083), 788 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states 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 20:26:14,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2021-10-21 20:26:14,554 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 123 [2021-10-21 20:26:14,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:14,555 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2021-10-21 20:26:14,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 20:26:14,555 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2021-10-21 20:26:14,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-10-21 20:26:14,562 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:14,562 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 20:26:14,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 20:26:14,563 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:14,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:14,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1649165251, now seen corresponding path program 1 times [2021-10-21 20:26:14,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:14,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929878611] [2021-10-21 20:26:14,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:14,564 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:14,743 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:26:14,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:14,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929878611] [2021-10-21 20:26:14,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929878611] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:14,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:14,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:26:14,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450230637] [2021-10-21 20:26:14,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:14,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:14,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:14,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:14,752 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:26:15,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:15,534 INFO L93 Difference]: Finished difference Result 1945 states and 2612 transitions. [2021-10-21 20:26:15,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:15,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-10-21 20:26:15,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:15,540 INFO L225 Difference]: With dead ends: 1945 [2021-10-21 20:26:15,541 INFO L226 Difference]: Without dead ends: 1158 [2021-10-21 20:26:15,542 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:15,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2021-10-21 20:26:15,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1157. [2021-10-21 20:26:15,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.2707612456747406) internal successors, (1469), 1156 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states 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 20:26:15,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1469 transitions. [2021-10-21 20:26:15,572 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1469 transitions. Word has length 125 [2021-10-21 20:26:15,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:15,573 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1469 transitions. [2021-10-21 20:26:15,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:26:15,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1469 transitions. [2021-10-21 20:26:15,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-10-21 20:26:15,580 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:15,584 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:15,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 20:26:15,585 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:15,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:15,585 INFO L82 PathProgramCache]: Analyzing trace with hash 693126941, now seen corresponding path program 1 times [2021-10-21 20:26:15,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:15,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753882236] [2021-10-21 20:26:15,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:15,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:15,742 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:26:15,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:15,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753882236] [2021-10-21 20:26:15,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753882236] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:15,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:15,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:26:15,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487487554] [2021-10-21 20:26:15,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:15,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:15,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:15,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:15,746 INFO L87 Difference]: Start difference. First operand 1157 states and 1469 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:26:16,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:16,594 INFO L93 Difference]: Finished difference Result 2519 states and 3349 transitions. [2021-10-21 20:26:16,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:16,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2021-10-21 20:26:16,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:16,605 INFO L225 Difference]: With dead ends: 2519 [2021-10-21 20:26:16,606 INFO L226 Difference]: Without dead ends: 1548 [2021-10-21 20:26:16,609 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 20:26:16,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2021-10-21 20:26:16,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1545. [2021-10-21 20:26:16,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1544 states have (on average 1.2933937823834196) internal successors, (1997), 1544 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states 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 20:26:16,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1997 transitions. [2021-10-21 20:26:16,651 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1997 transitions. Word has length 182 [2021-10-21 20:26:16,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:16,654 INFO L470 AbstractCegarLoop]: Abstraction has 1545 states and 1997 transitions. [2021-10-21 20:26:16,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:26:16,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1997 transitions. [2021-10-21 20:26:16,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-10-21 20:26:16,660 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:16,660 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 20:26:16,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 20:26:16,661 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:16,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:16,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1614618080, now seen corresponding path program 1 times [2021-10-21 20:26:16,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:16,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218388144] [2021-10-21 20:26:16,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:16,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:16,901 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-10-21 20:26:16,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:16,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218388144] [2021-10-21 20:26:16,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218388144] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:16,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:16,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:26:16,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054357112] [2021-10-21 20:26:16,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:16,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:16,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:16,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:16,906 INFO L87 Difference]: Start difference. First operand 1545 states and 1997 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states 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 20:26:17,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:17,862 INFO L93 Difference]: Finished difference Result 3650 states and 4815 transitions. [2021-10-21 20:26:17,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:17,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 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 237 [2021-10-21 20:26:17,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:17,876 INFO L225 Difference]: With dead ends: 3650 [2021-10-21 20:26:17,876 INFO L226 Difference]: Without dead ends: 2291 [2021-10-21 20:26:17,878 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 20:26:17,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2021-10-21 20:26:17,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2098. [2021-10-21 20:26:17,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2098 states, 2097 states have (on average 1.2675250357653791) internal successors, (2658), 2097 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states 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 20:26:17,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2098 states to 2098 states and 2658 transitions. [2021-10-21 20:26:17,933 INFO L78 Accepts]: Start accepts. Automaton has 2098 states and 2658 transitions. Word has length 237 [2021-10-21 20:26:17,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:17,935 INFO L470 AbstractCegarLoop]: Abstraction has 2098 states and 2658 transitions. [2021-10-21 20:26:17,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states 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 20:26:17,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2098 states and 2658 transitions. [2021-10-21 20:26:17,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-10-21 20:26:17,940 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:17,941 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:26:17,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 20:26:17,941 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:17,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:17,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1116092079, now seen corresponding path program 1 times [2021-10-21 20:26:17,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:17,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939144623] [2021-10-21 20:26:17,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:17,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:18,232 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 91 proven. 14 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-21 20:26:18,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:18,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939144623] [2021-10-21 20:26:18,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939144623] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:26:18,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162838822] [2021-10-21 20:26:18,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:18,235 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:26:18,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:26:18,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:26:18,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 20:26:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:18,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:26:18,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:26:19,083 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-21 20:26:19,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162838822] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:19,084 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:26:19,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-21 20:26:19,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620403038] [2021-10-21 20:26:19,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:19,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:19,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:19,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:26:19,097 INFO L87 Difference]: Start difference. First operand 2098 states and 2658 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states 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 20:26:20,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:20,017 INFO L93 Difference]: Finished difference Result 5671 states and 7287 transitions. [2021-10-21 20:26:20,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:20,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 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 20:26:20,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:20,039 INFO L225 Difference]: With dead ends: 5671 [2021-10-21 20:26:20,039 INFO L226 Difference]: Without dead ends: 3575 [2021-10-21 20:26:20,042 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 32.9ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:26:20,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3575 states. [2021-10-21 20:26:20,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3575 to 3572. [2021-10-21 20:26:20,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3572 states, 3571 states have (on average 1.2509101092131056) internal successors, (4467), 3571 states have internal predecessors, (4467), 0 states have call successors, (0), 0 states 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 20:26:20,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3572 states to 3572 states and 4467 transitions. [2021-10-21 20:26:20,157 INFO L78 Accepts]: Start accepts. Automaton has 3572 states and 4467 transitions. Word has length 243 [2021-10-21 20:26:20,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:20,157 INFO L470 AbstractCegarLoop]: Abstraction has 3572 states and 4467 transitions. [2021-10-21 20:26:20,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states 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 20:26:20,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3572 states and 4467 transitions. [2021-10-21 20:26:20,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-10-21 20:26:20,164 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:20,164 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 20:26:20,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:26:20,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:26:20,383 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:20,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:20,383 INFO L82 PathProgramCache]: Analyzing trace with hash 741694043, now seen corresponding path program 1 times [2021-10-21 20:26:20,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:20,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038329535] [2021-10-21 20:26:20,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:20,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:20,574 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:26:20,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:20,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038329535] [2021-10-21 20:26:20,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038329535] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:20,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:20,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:26:20,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324950136] [2021-10-21 20:26:20,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:26:20,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:20,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:26:20,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:26:20,578 INFO L87 Difference]: Start difference. First operand 3572 states and 4467 transitions. Second operand has 4 states, 4 states have (on average 70.5) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states 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 20:26:22,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:22,113 INFO L93 Difference]: Finished difference Result 11413 states and 14584 transitions. [2021-10-21 20:26:22,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:26:22,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.5) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 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 282 [2021-10-21 20:26:22,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:22,157 INFO L225 Difference]: With dead ends: 11413 [2021-10-21 20:26:22,157 INFO L226 Difference]: Without dead ends: 8027 [2021-10-21 20:26:22,162 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 20:26:22,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8027 states. [2021-10-21 20:26:22,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8027 to 8025. [2021-10-21 20:26:22,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8025 states, 8024 states have (on average 1.2534895314057826) internal successors, (10058), 8024 states have internal predecessors, (10058), 0 states have call successors, (0), 0 states 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 20:26:22,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8025 states to 8025 states and 10058 transitions. [2021-10-21 20:26:22,361 INFO L78 Accepts]: Start accepts. Automaton has 8025 states and 10058 transitions. Word has length 282 [2021-10-21 20:26:22,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:22,362 INFO L470 AbstractCegarLoop]: Abstraction has 8025 states and 10058 transitions. [2021-10-21 20:26:22,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.5) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states 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 20:26:22,362 INFO L276 IsEmpty]: Start isEmpty. Operand 8025 states and 10058 transitions. [2021-10-21 20:26:22,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-10-21 20:26:22,371 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:22,371 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 20:26:22,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 20:26:22,372 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:22,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:22,373 INFO L82 PathProgramCache]: Analyzing trace with hash 81123789, now seen corresponding path program 1 times [2021-10-21 20:26:22,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:22,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91672718] [2021-10-21 20:26:22,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:22,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:22,523 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-10-21 20:26:22,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:22,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91672718] [2021-10-21 20:26:22,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91672718] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:22,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:22,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:26:22,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699697703] [2021-10-21 20:26:22,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:22,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:22,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:22,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:22,526 INFO L87 Difference]: Start difference. First operand 8025 states and 10058 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states 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 20:26:23,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:23,512 INFO L93 Difference]: Finished difference Result 18085 states and 22879 transitions. [2021-10-21 20:26:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:23,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 291 [2021-10-21 20:26:23,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:23,585 INFO L225 Difference]: With dead ends: 18085 [2021-10-21 20:26:23,586 INFO L226 Difference]: Without dead ends: 10246 [2021-10-21 20:26:23,596 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 20:26:23,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10246 states. [2021-10-21 20:26:23,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10246 to 10232. [2021-10-21 20:26:23,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10232 states, 10231 states have (on average 1.221385983774802) internal successors, (12496), 10231 states have internal predecessors, (12496), 0 states have call successors, (0), 0 states 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 20:26:23,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10232 states to 10232 states and 12496 transitions. [2021-10-21 20:26:23,865 INFO L78 Accepts]: Start accepts. Automaton has 10232 states and 12496 transitions. Word has length 291 [2021-10-21 20:26:23,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:23,866 INFO L470 AbstractCegarLoop]: Abstraction has 10232 states and 12496 transitions. [2021-10-21 20:26:23,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states 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 20:26:23,867 INFO L276 IsEmpty]: Start isEmpty. Operand 10232 states and 12496 transitions. [2021-10-21 20:26:23,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-10-21 20:26:23,880 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:23,880 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:23,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 20:26:23,881 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:23,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:23,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1228370302, now seen corresponding path program 1 times [2021-10-21 20:26:23,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:23,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702962206] [2021-10-21 20:26:23,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:23,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:24,171 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 173 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:26:24,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:24,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702962206] [2021-10-21 20:26:24,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702962206] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:26:24,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720760290] [2021-10-21 20:26:24,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:24,177 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:26:24,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:26:24,180 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:26:24,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 20:26:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:24,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 20:26:24,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:26:27,406 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 173 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:26:27,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720760290] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:26:27,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:26:27,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-10-21 20:26:27,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105482992] [2021-10-21 20:26:27,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 20:26:27,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:27,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:26:27,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:26:27,409 INFO L87 Difference]: Start difference. First operand 10232 states and 12496 transitions. Second operand has 7 states, 7 states have (on average 73.0) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states 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 20:26:29,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:29,719 INFO L93 Difference]: Finished difference Result 23032 states and 28340 transitions. [2021-10-21 20:26:29,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 20:26:29,724 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 73.0) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 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 329 [2021-10-21 20:26:29,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:29,747 INFO L225 Difference]: With dead ends: 23032 [2021-10-21 20:26:29,748 INFO L226 Difference]: Without dead ends: 13539 [2021-10-21 20:26:29,760 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 79.4ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-10-21 20:26:29,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13539 states. [2021-10-21 20:26:29,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13539 to 10943. [2021-10-21 20:26:29,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10943 states, 10942 states have (on average 1.1883567903491135) internal successors, (13003), 10942 states have internal predecessors, (13003), 0 states have call successors, (0), 0 states 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 20:26:29,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10943 states to 10943 states and 13003 transitions. [2021-10-21 20:26:29,996 INFO L78 Accepts]: Start accepts. Automaton has 10943 states and 13003 transitions. Word has length 329 [2021-10-21 20:26:29,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:29,997 INFO L470 AbstractCegarLoop]: Abstraction has 10943 states and 13003 transitions. [2021-10-21 20:26:29,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.0) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states 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 20:26:29,997 INFO L276 IsEmpty]: Start isEmpty. Operand 10943 states and 13003 transitions. [2021-10-21 20:26:30,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2021-10-21 20:26:30,013 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:30,013 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:26:30,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:26:30,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:26:30,228 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:30,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:30,228 INFO L82 PathProgramCache]: Analyzing trace with hash -333660676, now seen corresponding path program 1 times [2021-10-21 20:26:30,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:30,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557533683] [2021-10-21 20:26:30,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:30,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:30,390 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 367 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-10-21 20:26:30,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:30,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557533683] [2021-10-21 20:26:30,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557533683] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:30,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:30,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:26:30,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081695084] [2021-10-21 20:26:30,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:30,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:30,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:30,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:30,395 INFO L87 Difference]: Start difference. First operand 10943 states and 13003 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states 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 20:26:31,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:31,385 INFO L93 Difference]: Finished difference Result 27057 states and 32311 transitions. [2021-10-21 20:26:31,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:31,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 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 349 [2021-10-21 20:26:31,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:31,415 INFO L225 Difference]: With dead ends: 27057 [2021-10-21 20:26:31,416 INFO L226 Difference]: Without dead ends: 16852 [2021-10-21 20:26:31,426 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 20:26:31,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16852 states. [2021-10-21 20:26:31,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16852 to 16848. [2021-10-21 20:26:31,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16848 states, 16847 states have (on average 1.167388852614709) internal successors, (19667), 16847 states have internal predecessors, (19667), 0 states have call successors, (0), 0 states 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 20:26:31,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16848 states to 16848 states and 19667 transitions. [2021-10-21 20:26:31,729 INFO L78 Accepts]: Start accepts. Automaton has 16848 states and 19667 transitions. Word has length 349 [2021-10-21 20:26:31,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:31,730 INFO L470 AbstractCegarLoop]: Abstraction has 16848 states and 19667 transitions. [2021-10-21 20:26:31,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states 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 20:26:31,730 INFO L276 IsEmpty]: Start isEmpty. Operand 16848 states and 19667 transitions. [2021-10-21 20:26:31,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2021-10-21 20:26:31,750 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:31,750 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 20:26:31,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-21 20:26:31,751 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:31,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:31,752 INFO L82 PathProgramCache]: Analyzing trace with hash 413217873, now seen corresponding path program 1 times [2021-10-21 20:26:31,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:31,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970953538] [2021-10-21 20:26:31,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:31,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:32,028 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:26:32,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:32,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970953538] [2021-10-21 20:26:32,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970953538] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:32,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:32,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:26:32,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968823770] [2021-10-21 20:26:32,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:32,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:32,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:32,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:32,032 INFO L87 Difference]: Start difference. First operand 16848 states and 19667 transitions. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states 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 20:26:33,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:33,082 INFO L93 Difference]: Finished difference Result 35910 states and 41957 transitions. [2021-10-21 20:26:33,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:33,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 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 20:26:33,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:33,117 INFO L225 Difference]: With dead ends: 35910 [2021-10-21 20:26:33,118 INFO L226 Difference]: Without dead ends: 20168 [2021-10-21 20:26:33,135 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 20:26:33,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20168 states. [2021-10-21 20:26:33,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20168 to 20160. [2021-10-21 20:26:33,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20160 states, 20159 states have (on average 1.155960117069299) internal successors, (23303), 20159 states have internal predecessors, (23303), 0 states have call successors, (0), 0 states 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 20:26:33,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20160 states to 20160 states and 23303 transitions. [2021-10-21 20:26:33,544 INFO L78 Accepts]: Start accepts. Automaton has 20160 states and 23303 transitions. Word has length 357 [2021-10-21 20:26:33,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:33,545 INFO L470 AbstractCegarLoop]: Abstraction has 20160 states and 23303 transitions. [2021-10-21 20:26:33,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states 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 20:26:33,546 INFO L276 IsEmpty]: Start isEmpty. Operand 20160 states and 23303 transitions. [2021-10-21 20:26:33,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2021-10-21 20:26:33,566 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:33,566 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 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 20:26:33,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-21 20:26:33,567 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:33,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:33,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1498658965, now seen corresponding path program 1 times [2021-10-21 20:26:33,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:33,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007788452] [2021-10-21 20:26:33,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:33,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:33,875 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-21 20:26:33,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:33,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007788452] [2021-10-21 20:26:33,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007788452] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:33,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:33,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:26:33,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062896497] [2021-10-21 20:26:33,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:26:33,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:33,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:26:33,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:26:33,879 INFO L87 Difference]: Start difference. First operand 20160 states and 23303 transitions. Second operand has 4 states, 4 states have (on average 69.75) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states 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 20:26:35,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:35,395 INFO L93 Difference]: Finished difference Result 44218 states and 51655 transitions. [2021-10-21 20:26:35,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:26:35,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.75) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 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 359 [2021-10-21 20:26:35,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:35,447 INFO L225 Difference]: With dead ends: 44218 [2021-10-21 20:26:35,447 INFO L226 Difference]: Without dead ends: 26086 [2021-10-21 20:26:35,462 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:26:35,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26086 states. [2021-10-21 20:26:35,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26086 to 22201. [2021-10-21 20:26:35,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22201 states, 22200 states have (on average 1.1554054054054055) internal successors, (25650), 22200 states have internal predecessors, (25650), 0 states have call successors, (0), 0 states 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 20:26:36,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22201 states to 22201 states and 25650 transitions. [2021-10-21 20:26:36,008 INFO L78 Accepts]: Start accepts. Automaton has 22201 states and 25650 transitions. Word has length 359 [2021-10-21 20:26:36,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:36,009 INFO L470 AbstractCegarLoop]: Abstraction has 22201 states and 25650 transitions. [2021-10-21 20:26:36,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.75) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states 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 20:26:36,009 INFO L276 IsEmpty]: Start isEmpty. Operand 22201 states and 25650 transitions. [2021-10-21 20:26:36,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-10-21 20:26:36,140 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:36,141 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 20:26:36,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-21 20:26:36,141 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:36,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:36,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1694407671, now seen corresponding path program 1 times [2021-10-21 20:26:36,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:36,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83199647] [2021-10-21 20:26:36,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:36,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:36,349 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-10-21 20:26:36,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:36,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83199647] [2021-10-21 20:26:36,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83199647] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:26:36,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168778545] [2021-10-21 20:26:36,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:36,351 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:26:36,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:26:36,352 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:26:36,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 20:26:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:36,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:26:36,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:26:38,552 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-10-21 20:26:38,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168778545] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:26:38,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:26:38,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-21 20:26:38,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548541464] [2021-10-21 20:26:38,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:26:38,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:38,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:26:38,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:26:38,555 INFO L87 Difference]: Start difference. First operand 22201 states and 25650 transitions. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:26:39,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:39,925 INFO L93 Difference]: Finished difference Result 47901 states and 55214 transitions. [2021-10-21 20:26:39,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:26:39,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2021-10-21 20:26:39,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:39,969 INFO L225 Difference]: With dead ends: 47901 [2021-10-21 20:26:39,969 INFO L226 Difference]: Without dead ends: 27728 [2021-10-21 20:26:39,982 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 359 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:26:40,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27728 states. [2021-10-21 20:26:40,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27728 to 22017. [2021-10-21 20:26:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22017 states, 22016 states have (on average 1.1539335029069768) internal successors, (25405), 22016 states have internal predecessors, (25405), 0 states have call successors, (0), 0 states 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 20:26:40,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22017 states to 22017 states and 25405 transitions. [2021-10-21 20:26:40,479 INFO L78 Accepts]: Start accepts. Automaton has 22017 states and 25405 transitions. Word has length 360 [2021-10-21 20:26:40,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:40,480 INFO L470 AbstractCegarLoop]: Abstraction has 22017 states and 25405 transitions. [2021-10-21 20:26:40,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:26:40,480 INFO L276 IsEmpty]: Start isEmpty. Operand 22017 states and 25405 transitions. [2021-10-21 20:26:40,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-10-21 20:26:40,504 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:40,505 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:40,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:26:40,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-21 20:26:40,725 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:40,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:40,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1780645049, now seen corresponding path program 1 times [2021-10-21 20:26:40,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:40,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978421924] [2021-10-21 20:26:40,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:40,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:41,002 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-10-21 20:26:41,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:41,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978421924] [2021-10-21 20:26:41,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978421924] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:41,003 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:41,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:26:41,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358317603] [2021-10-21 20:26:41,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:41,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:41,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:41,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:41,007 INFO L87 Difference]: Start difference. First operand 22017 states and 25405 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states 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 20:26:41,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:41,886 INFO L93 Difference]: Finished difference Result 43670 states and 50426 transitions. [2021-10-21 20:26:41,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:41,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 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 430 [2021-10-21 20:26:41,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:41,911 INFO L225 Difference]: With dead ends: 43670 [2021-10-21 20:26:41,911 INFO L226 Difference]: Without dead ends: 23681 [2021-10-21 20:26:41,923 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 20:26:41,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23681 states. [2021-10-21 20:26:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23681 to 22203. [2021-10-21 20:26:42,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22203 states, 22202 states have (on average 1.153724889649581) internal successors, (25615), 22202 states have internal predecessors, (25615), 0 states have call successors, (0), 0 states 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 20:26:42,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22203 states to 22203 states and 25615 transitions. [2021-10-21 20:26:42,283 INFO L78 Accepts]: Start accepts. Automaton has 22203 states and 25615 transitions. Word has length 430 [2021-10-21 20:26:42,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:42,283 INFO L470 AbstractCegarLoop]: Abstraction has 22203 states and 25615 transitions. [2021-10-21 20:26:42,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states 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 20:26:42,284 INFO L276 IsEmpty]: Start isEmpty. Operand 22203 states and 25615 transitions. [2021-10-21 20:26:42,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2021-10-21 20:26:42,303 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:42,304 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:42,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-21 20:26:42,304 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:42,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:42,305 INFO L82 PathProgramCache]: Analyzing trace with hash 767467316, now seen corresponding path program 1 times [2021-10-21 20:26:42,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:42,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715905066] [2021-10-21 20:26:42,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:42,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:42,577 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 487 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-10-21 20:26:42,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:42,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715905066] [2021-10-21 20:26:42,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715905066] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:42,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:42,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:26:42,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584548891] [2021-10-21 20:26:42,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:42,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:42,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:42,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:42,581 INFO L87 Difference]: Start difference. First operand 22203 states and 25615 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states 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 20:26:43,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:43,372 INFO L93 Difference]: Finished difference Result 41286 states and 47755 transitions. [2021-10-21 20:26:43,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:43,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 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 433 [2021-10-21 20:26:43,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:43,398 INFO L225 Difference]: With dead ends: 41286 [2021-10-21 20:26:43,398 INFO L226 Difference]: Without dead ends: 21111 [2021-10-21 20:26:43,411 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 20:26:43,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21111 states. [2021-10-21 20:26:43,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21111 to 21093. [2021-10-21 20:26:43,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21093 states, 21092 states have (on average 1.126730513938934) internal successors, (23765), 21092 states have internal predecessors, (23765), 0 states have call successors, (0), 0 states 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 20:26:43,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21093 states to 21093 states and 23765 transitions. [2021-10-21 20:26:43,811 INFO L78 Accepts]: Start accepts. Automaton has 21093 states and 23765 transitions. Word has length 433 [2021-10-21 20:26:43,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:43,811 INFO L470 AbstractCegarLoop]: Abstraction has 21093 states and 23765 transitions. [2021-10-21 20:26:43,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states 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 20:26:43,812 INFO L276 IsEmpty]: Start isEmpty. Operand 21093 states and 23765 transitions. [2021-10-21 20:26:43,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2021-10-21 20:26:43,823 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:43,823 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:26:43,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-21 20:26:43,824 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:43,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:43,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1966731224, now seen corresponding path program 1 times [2021-10-21 20:26:43,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:43,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028471226] [2021-10-21 20:26:43,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:43,825 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:44,091 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-10-21 20:26:44,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:44,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028471226] [2021-10-21 20:26:44,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028471226] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:44,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:44,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:26:44,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474592357] [2021-10-21 20:26:44,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:44,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:44,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:44,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:44,094 INFO L87 Difference]: Start difference. First operand 21093 states and 23765 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 2 states have internal predecessors, (262), 0 states have call successors, (0), 0 states 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 20:26:44,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:44,531 INFO L93 Difference]: Finished difference Result 39407 states and 44451 transitions. [2021-10-21 20:26:44,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:44,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 2 states have internal predecessors, (262), 0 states have call successors, (0), 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 437 [2021-10-21 20:26:44,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:44,550 INFO L225 Difference]: With dead ends: 39407 [2021-10-21 20:26:44,550 INFO L226 Difference]: Without dead ends: 20342 [2021-10-21 20:26:44,560 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 20:26:44,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20342 states. [2021-10-21 20:26:44,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20342 to 20333. [2021-10-21 20:26:44,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20333 states, 20332 states have (on average 1.12492622467047) internal successors, (22872), 20332 states have internal predecessors, (22872), 0 states have call successors, (0), 0 states 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 20:26:44,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20333 states to 20333 states and 22872 transitions. [2021-10-21 20:26:44,890 INFO L78 Accepts]: Start accepts. Automaton has 20333 states and 22872 transitions. Word has length 437 [2021-10-21 20:26:44,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:44,891 INFO L470 AbstractCegarLoop]: Abstraction has 20333 states and 22872 transitions. [2021-10-21 20:26:44,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 2 states have internal predecessors, (262), 0 states have call successors, (0), 0 states 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 20:26:44,891 INFO L276 IsEmpty]: Start isEmpty. Operand 20333 states and 22872 transitions. [2021-10-21 20:26:44,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2021-10-21 20:26:44,898 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:44,899 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:26:44,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-21 20:26:44,899 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:44,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:44,900 INFO L82 PathProgramCache]: Analyzing trace with hash 753967230, now seen corresponding path program 1 times [2021-10-21 20:26:44,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:44,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793096058] [2021-10-21 20:26:44,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:44,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:45,074 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-21 20:26:45,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:45,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793096058] [2021-10-21 20:26:45,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793096058] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:45,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:45,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:26:45,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055713853] [2021-10-21 20:26:45,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:45,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:45,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:45,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:45,077 INFO L87 Difference]: Start difference. First operand 20333 states and 22872 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states 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 20:26:45,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:45,893 INFO L93 Difference]: Finished difference Result 35298 states and 39545 transitions. [2021-10-21 20:26:45,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:45,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 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 453 [2021-10-21 20:26:45,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:45,905 INFO L225 Difference]: With dead ends: 35298 [2021-10-21 20:26:45,906 INFO L226 Difference]: Without dead ends: 16807 [2021-10-21 20:26:45,915 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 20:26:45,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16807 states. [2021-10-21 20:26:46,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16807 to 16807. [2021-10-21 20:26:46,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16807 states, 16806 states have (on average 1.1066880875877663) internal successors, (18599), 16806 states have internal predecessors, (18599), 0 states have call successors, (0), 0 states 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 20:26:46,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16807 states to 16807 states and 18599 transitions. [2021-10-21 20:26:46,160 INFO L78 Accepts]: Start accepts. Automaton has 16807 states and 18599 transitions. Word has length 453 [2021-10-21 20:26:46,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:46,161 INFO L470 AbstractCegarLoop]: Abstraction has 16807 states and 18599 transitions. [2021-10-21 20:26:46,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states 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 20:26:46,161 INFO L276 IsEmpty]: Start isEmpty. Operand 16807 states and 18599 transitions. [2021-10-21 20:26:46,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-10-21 20:26:46,173 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:46,173 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:46,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-21 20:26:46,174 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:46,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:46,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1527728535, now seen corresponding path program 1 times [2021-10-21 20:26:46,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:46,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609973839] [2021-10-21 20:26:46,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:46,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:46,525 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-21 20:26:46,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:46,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609973839] [2021-10-21 20:26:46,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609973839] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:46,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:46,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:26:46,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335810225] [2021-10-21 20:26:46,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:26:46,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:46,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:26:46,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:26:46,528 INFO L87 Difference]: Start difference. First operand 16807 states and 18599 transitions. Second operand has 5 states, 5 states have (on average 73.6) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states 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 20:26:47,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:47,610 INFO L93 Difference]: Finished difference Result 32019 states and 35460 transitions. [2021-10-21 20:26:47,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:26:47,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 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 491 [2021-10-21 20:26:47,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:47,627 INFO L225 Difference]: With dead ends: 32019 [2021-10-21 20:26:47,627 INFO L226 Difference]: Without dead ends: 17240 [2021-10-21 20:26:47,635 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 37.4ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:26:47,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17240 states. [2021-10-21 20:26:47,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17240 to 16992. [2021-10-21 20:26:47,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16992 states, 16991 states have (on average 1.1051733270555) internal successors, (18778), 16991 states have internal predecessors, (18778), 0 states have call successors, (0), 0 states 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 20:26:47,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16992 states to 16992 states and 18778 transitions. [2021-10-21 20:26:47,889 INFO L78 Accepts]: Start accepts. Automaton has 16992 states and 18778 transitions. Word has length 491 [2021-10-21 20:26:47,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:47,889 INFO L470 AbstractCegarLoop]: Abstraction has 16992 states and 18778 transitions. [2021-10-21 20:26:47,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states 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 20:26:47,890 INFO L276 IsEmpty]: Start isEmpty. Operand 16992 states and 18778 transitions. [2021-10-21 20:26:47,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2021-10-21 20:26:47,900 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:47,901 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 20:26:47,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-21 20:26:47,901 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:47,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:47,902 INFO L82 PathProgramCache]: Analyzing trace with hash 762254319, now seen corresponding path program 1 times [2021-10-21 20:26:47,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:47,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003592117] [2021-10-21 20:26:47,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:47,903 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:48,093 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 685 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-10-21 20:26:48,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:48,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003592117] [2021-10-21 20:26:48,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003592117] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:48,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:48,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:26:48,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904237860] [2021-10-21 20:26:48,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:48,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:48,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:48,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:48,096 INFO L87 Difference]: Start difference. First operand 16992 states and 18778 transitions. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states 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 20:26:48,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:48,953 INFO L93 Difference]: Finished difference Result 34534 states and 38184 transitions. [2021-10-21 20:26:48,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:48,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 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 513 [2021-10-21 20:26:48,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:48,972 INFO L225 Difference]: With dead ends: 34534 [2021-10-21 20:26:48,972 INFO L226 Difference]: Without dead ends: 18648 [2021-10-21 20:26:48,981 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 20:26:48,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18648 states. [2021-10-21 20:26:49,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18648 to 17728. [2021-10-21 20:26:49,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17728 states, 17727 states have (on average 1.1028374795509674) internal successors, (19550), 17727 states have internal predecessors, (19550), 0 states have call successors, (0), 0 states 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 20:26:49,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17728 states to 17728 states and 19550 transitions. [2021-10-21 20:26:49,241 INFO L78 Accepts]: Start accepts. Automaton has 17728 states and 19550 transitions. Word has length 513 [2021-10-21 20:26:49,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:49,241 INFO L470 AbstractCegarLoop]: Abstraction has 17728 states and 19550 transitions. [2021-10-21 20:26:49,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states 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 20:26:49,242 INFO L276 IsEmpty]: Start isEmpty. Operand 17728 states and 19550 transitions. [2021-10-21 20:26:49,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2021-10-21 20:26:49,258 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:49,259 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:26:49,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-21 20:26:49,259 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:49,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:49,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1316469261, now seen corresponding path program 1 times [2021-10-21 20:26:49,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:49,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439431543] [2021-10-21 20:26:49,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:49,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:49,498 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-10-21 20:26:49,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:49,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439431543] [2021-10-21 20:26:49,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439431543] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:49,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:49,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:26:49,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825679668] [2021-10-21 20:26:49,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:49,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:49,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:49,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:49,501 INFO L87 Difference]: Start difference. First operand 17728 states and 19550 transitions. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states 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 20:26:50,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:50,295 INFO L93 Difference]: Finished difference Result 37114 states and 40944 transitions. [2021-10-21 20:26:50,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:50,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 545 [2021-10-21 20:26:50,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:50,310 INFO L225 Difference]: With dead ends: 37114 [2021-10-21 20:26:50,310 INFO L226 Difference]: Without dead ends: 20492 [2021-10-21 20:26:50,318 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 20:26:50,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20492 states. [2021-10-21 20:26:50,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20492 to 17912. [2021-10-21 20:26:50,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17912 states, 17911 states have (on average 1.1021160180894423) internal successors, (19740), 17911 states have internal predecessors, (19740), 0 states have call successors, (0), 0 states 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 20:26:50,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17912 states to 17912 states and 19740 transitions. [2021-10-21 20:26:50,561 INFO L78 Accepts]: Start accepts. Automaton has 17912 states and 19740 transitions. Word has length 545 [2021-10-21 20:26:50,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:50,562 INFO L470 AbstractCegarLoop]: Abstraction has 17912 states and 19740 transitions. [2021-10-21 20:26:50,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states 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 20:26:50,562 INFO L276 IsEmpty]: Start isEmpty. Operand 17912 states and 19740 transitions. [2021-10-21 20:26:50,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2021-10-21 20:26:50,580 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:50,581 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:50,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-21 20:26:50,581 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:50,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:50,582 INFO L82 PathProgramCache]: Analyzing trace with hash 50467656, now seen corresponding path program 1 times [2021-10-21 20:26:50,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:50,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864271983] [2021-10-21 20:26:50,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:50,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:50,992 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-21 20:26:50,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:50,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864271983] [2021-10-21 20:26:50,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864271983] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:50,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:50,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 20:26:50,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056315897] [2021-10-21 20:26:50,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 20:26:50,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:50,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:26:50,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:26:50,995 INFO L87 Difference]: Start difference. First operand 17912 states and 19740 transitions. Second operand has 7 states, 7 states have (on average 57.714285714285715) internal successors, (404), 6 states have internal predecessors, (404), 0 states have call successors, (0), 0 states 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 20:26:52,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:52,544 INFO L93 Difference]: Finished difference Result 36690 states and 40382 transitions. [2021-10-21 20:26:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:26:52,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 57.714285714285715) internal successors, (404), 6 states have internal predecessors, (404), 0 states have call successors, (0), 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 555 [2021-10-21 20:26:52,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:52,568 INFO L225 Difference]: With dead ends: 36690 [2021-10-21 20:26:52,568 INFO L226 Difference]: Without dead ends: 21174 [2021-10-21 20:26:52,579 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 87.7ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:26:52,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21174 states. [2021-10-21 20:26:52,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21174 to 18464. [2021-10-21 20:26:52,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18464 states, 18463 states have (on average 1.1026377078481286) internal successors, (20358), 18463 states have internal predecessors, (20358), 0 states have call successors, (0), 0 states 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 20:26:52,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18464 states to 18464 states and 20358 transitions. [2021-10-21 20:26:52,858 INFO L78 Accepts]: Start accepts. Automaton has 18464 states and 20358 transitions. Word has length 555 [2021-10-21 20:26:52,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:52,859 INFO L470 AbstractCegarLoop]: Abstraction has 18464 states and 20358 transitions. [2021-10-21 20:26:52,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 57.714285714285715) internal successors, (404), 6 states have internal predecessors, (404), 0 states have call successors, (0), 0 states 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 20:26:52,859 INFO L276 IsEmpty]: Start isEmpty. Operand 18464 states and 20358 transitions. [2021-10-21 20:26:52,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2021-10-21 20:26:52,874 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:52,875 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:26:52,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-21 20:26:52,875 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:52,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:52,876 INFO L82 PathProgramCache]: Analyzing trace with hash -304859615, now seen corresponding path program 1 times [2021-10-21 20:26:52,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:52,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520772826] [2021-10-21 20:26:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:52,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:53,301 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 665 proven. 8 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-21 20:26:53,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:53,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520772826] [2021-10-21 20:26:53,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520772826] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:26:53,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802376863] [2021-10-21 20:26:53,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:53,303 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:26:53,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:26:53,304 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:26:53,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 20:26:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:54,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:26:54,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:26:57,011 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 552 proven. 121 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-21 20:26:57,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802376863] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:26:57,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:26:57,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2021-10-21 20:26:57,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931788187] [2021-10-21 20:26:57,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 20:26:57,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:57,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 20:26:57,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:26:57,016 INFO L87 Difference]: Start difference. First operand 18464 states and 20358 transitions. Second operand has 9 states, 9 states have (on average 77.55555555555556) internal successors, (698), 8 states have internal predecessors, (698), 0 states have call successors, (0), 0 states 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 20:27:00,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:27:00,286 INFO L93 Difference]: Finished difference Result 37978 states and 41796 transitions. [2021-10-21 20:27:00,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-21 20:27:00,286 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 77.55555555555556) internal successors, (698), 8 states have internal predecessors, (698), 0 states have call successors, (0), 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 565 [2021-10-21 20:27:00,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:27:00,304 INFO L225 Difference]: With dead ends: 37978 [2021-10-21 20:27:00,304 INFO L226 Difference]: Without dead ends: 21910 [2021-10-21 20:27:00,313 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 564 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 409.4ms TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2021-10-21 20:27:00,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21910 states. [2021-10-21 20:27:00,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21910 to 20674. [2021-10-21 20:27:00,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20674 states, 20673 states have (on average 1.0989212983118077) internal successors, (22718), 20673 states have internal predecessors, (22718), 0 states have call successors, (0), 0 states 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 20:27:00,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20674 states to 20674 states and 22718 transitions. [2021-10-21 20:27:00,601 INFO L78 Accepts]: Start accepts. Automaton has 20674 states and 22718 transitions. Word has length 565 [2021-10-21 20:27:00,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:27:00,602 INFO L470 AbstractCegarLoop]: Abstraction has 20674 states and 22718 transitions. [2021-10-21 20:27:00,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 77.55555555555556) internal successors, (698), 8 states have internal predecessors, (698), 0 states have call successors, (0), 0 states 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 20:27:00,602 INFO L276 IsEmpty]: Start isEmpty. Operand 20674 states and 22718 transitions. [2021-10-21 20:27:00,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2021-10-21 20:27:00,623 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:27:00,624 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:00,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:27:00,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-21 20:27:00,825 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:27:00,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:27:00,825 INFO L82 PathProgramCache]: Analyzing trace with hash 988145073, now seen corresponding path program 1 times [2021-10-21 20:27:00,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:27:00,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076508304] [2021-10-21 20:27:00,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:27:00,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:27:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:27:01,080 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 632 proven. 200 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-10-21 20:27:01,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:27:01,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076508304] [2021-10-21 20:27:01,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076508304] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:27:01,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260924494] [2021-10-21 20:27:01,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:27:01,082 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:27:01,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:27:01,088 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:27:01,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 20:27:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:27:01,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:27:01,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:27:03,665 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 679 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-21 20:27:03,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260924494] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:27:03,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:27:03,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 20:27:03,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046543055] [2021-10-21 20:27:03,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:27:03,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:27:03,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:27:03,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:27:03,668 INFO L87 Difference]: Start difference. First operand 20674 states and 22718 transitions. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:27:04,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:27:04,375 INFO L93 Difference]: Finished difference Result 39146 states and 43067 transitions. [2021-10-21 20:27:04,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:27:04,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 570 [2021-10-21 20:27:04,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:27:04,393 INFO L225 Difference]: With dead ends: 39146 [2021-10-21 20:27:04,393 INFO L226 Difference]: Without dead ends: 21052 [2021-10-21 20:27:04,402 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 571 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:27:04,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21052 states. [2021-10-21 20:27:04,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21052 to 20862. [2021-10-21 20:27:04,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20862 states, 20861 states have (on average 1.097742198360577) internal successors, (22900), 20861 states have internal predecessors, (22900), 0 states have call successors, (0), 0 states 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 20:27:04,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20862 states to 20862 states and 22900 transitions. [2021-10-21 20:27:04,818 INFO L78 Accepts]: Start accepts. Automaton has 20862 states and 22900 transitions. Word has length 570 [2021-10-21 20:27:04,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:27:04,819 INFO L470 AbstractCegarLoop]: Abstraction has 20862 states and 22900 transitions. [2021-10-21 20:27:04,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:27:04,819 INFO L276 IsEmpty]: Start isEmpty. Operand 20862 states and 22900 transitions. [2021-10-21 20:27:04,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2021-10-21 20:27:04,836 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:27:04,837 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 20:27:04,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:27:05,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-21 20:27:05,037 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:27:05,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:27:05,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1668440305, now seen corresponding path program 1 times [2021-10-21 20:27:05,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:27:05,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329211505] [2021-10-21 20:27:05,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:27:05,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:27:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:27:05,307 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 699 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-21 20:27:05,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:27:05,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329211505] [2021-10-21 20:27:05,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329211505] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:27:05,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:27:05,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:27:05,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433690329] [2021-10-21 20:27:05,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:27:05,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:27:05,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:27:05,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:27:05,311 INFO L87 Difference]: Start difference. First operand 20862 states and 22900 transitions. Second operand has 4 states, 4 states have (on average 108.75) 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 20:27:06,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:27:06,417 INFO L93 Difference]: Finished difference Result 42464 states and 46657 transitions. [2021-10-21 20:27:06,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:27:06,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 108.75) 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 586 [2021-10-21 20:27:06,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:27:06,438 INFO L225 Difference]: With dead ends: 42464 [2021-10-21 20:27:06,438 INFO L226 Difference]: Without dead ends: 23998 [2021-10-21 20:27:06,448 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:27:06,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23998 states. [2021-10-21 20:27:06,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23998 to 22150. [2021-10-21 20:27:06,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22150 states, 22149 states have (on average 1.0966183574879227) internal successors, (24289), 22149 states have internal predecessors, (24289), 0 states have call successors, (0), 0 states 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 20:27:06,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22150 states to 22150 states and 24289 transitions. [2021-10-21 20:27:06,848 INFO L78 Accepts]: Start accepts. Automaton has 22150 states and 24289 transitions. Word has length 586 [2021-10-21 20:27:06,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:27:06,848 INFO L470 AbstractCegarLoop]: Abstraction has 22150 states and 24289 transitions. [2021-10-21 20:27:06,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.75) 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 20:27:06,849 INFO L276 IsEmpty]: Start isEmpty. Operand 22150 states and 24289 transitions. [2021-10-21 20:27:06,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2021-10-21 20:27:06,862 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:27:06,863 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:06,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-21 20:27:06,863 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:27:06,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:27:06,864 INFO L82 PathProgramCache]: Analyzing trace with hash 864830933, now seen corresponding path program 1 times [2021-10-21 20:27:06,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:27:06,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338568829] [2021-10-21 20:27:06,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:27:06,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:27:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:27:07,075 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 679 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-21 20:27:07,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:27:07,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338568829] [2021-10-21 20:27:07,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338568829] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:27:07,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:27:07,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:27:07,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813192328] [2021-10-21 20:27:07,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:27:07,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:27:07,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:27:07,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:27:07,078 INFO L87 Difference]: Start difference. First operand 22150 states and 24289 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states 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 20:27:08,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:27:08,382 INFO L93 Difference]: Finished difference Result 49272 states and 53979 transitions. [2021-10-21 20:27:08,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:27:08,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 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 589 [2021-10-21 20:27:08,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:27:08,412 INFO L225 Difference]: With dead ends: 49272 [2021-10-21 20:27:08,413 INFO L226 Difference]: Without dead ends: 27492 [2021-10-21 20:27:08,424 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:27:08,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27492 states. [2021-10-21 20:27:08,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27492 to 26933. [2021-10-21 20:27:08,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26933 states, 26932 states have (on average 1.084769047972672) internal successors, (29215), 26932 states have internal predecessors, (29215), 0 states have call successors, (0), 0 states 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 20:27:08,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26933 states to 26933 states and 29215 transitions. [2021-10-21 20:27:08,932 INFO L78 Accepts]: Start accepts. Automaton has 26933 states and 29215 transitions. Word has length 589 [2021-10-21 20:27:08,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:27:08,933 INFO L470 AbstractCegarLoop]: Abstraction has 26933 states and 29215 transitions. [2021-10-21 20:27:08,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states 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 20:27:08,933 INFO L276 IsEmpty]: Start isEmpty. Operand 26933 states and 29215 transitions. [2021-10-21 20:27:08,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2021-10-21 20:27:08,947 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:27:08,948 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:27:08,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-21 20:27:08,948 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:27:08,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:27:08,949 INFO L82 PathProgramCache]: Analyzing trace with hash 132729374, now seen corresponding path program 1 times [2021-10-21 20:27:08,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:27:08,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677693114] [2021-10-21 20:27:08,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:27:08,949 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:27:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:27:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 1049 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-21 20:27:09,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:27:09,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677693114] [2021-10-21 20:27:09,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677693114] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:27:09,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:27:09,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:27:09,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383824030] [2021-10-21 20:27:09,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:27:09,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:27:09,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:27:09,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:27:09,153 INFO L87 Difference]: Start difference. First operand 26933 states and 29215 transitions. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 20:27:10,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:27:10,557 INFO L93 Difference]: Finished difference Result 55346 states and 60150 transitions. [2021-10-21 20:27:10,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:27:10,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 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 607 [2021-10-21 20:27:10,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:27:10,586 INFO L225 Difference]: With dead ends: 55346 [2021-10-21 20:27:10,586 INFO L226 Difference]: Without dead ends: 30811 [2021-10-21 20:27:10,596 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:27:10,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30811 states. [2021-10-21 20:27:10,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30811 to 29144. [2021-10-21 20:27:10,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29144 states, 29143 states have (on average 1.0824211646021342) internal successors, (31545), 29143 states have internal predecessors, (31545), 0 states have call successors, (0), 0 states 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 20:27:10,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29144 states to 29144 states and 31545 transitions. [2021-10-21 20:27:10,926 INFO L78 Accepts]: Start accepts. Automaton has 29144 states and 31545 transitions. Word has length 607 [2021-10-21 20:27:10,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:27:10,927 INFO L470 AbstractCegarLoop]: Abstraction has 29144 states and 31545 transitions. [2021-10-21 20:27:10,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 20:27:10,927 INFO L276 IsEmpty]: Start isEmpty. Operand 29144 states and 31545 transitions. [2021-10-21 20:27:11,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2021-10-21 20:27:11,128 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:27:11,128 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:27:11,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-21 20:27:11,129 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:27:11,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:27:11,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1889954898, now seen corresponding path program 1 times [2021-10-21 20:27:11,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:27:11,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164780980] [2021-10-21 20:27:11,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:27:11,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:27:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:27:11,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1375 backedges. 1027 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2021-10-21 20:27:11,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:27:11,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164780980] [2021-10-21 20:27:11,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164780980] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:27:11,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:27:11,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:27:11,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171768763] [2021-10-21 20:27:11,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:27:11,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:27:11,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:27:11,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:27:11,445 INFO L87 Difference]: Start difference. First operand 29144 states and 31545 transitions. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states 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 20:27:13,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:27:13,089 INFO L93 Difference]: Finished difference Result 67323 states and 72893 transitions. [2021-10-21 20:27:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:27:13,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 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 681 [2021-10-21 20:27:13,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:27:13,122 INFO L225 Difference]: With dead ends: 67323 [2021-10-21 20:27:13,122 INFO L226 Difference]: Without dead ends: 40761 [2021-10-21 20:27:13,131 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:27:13,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40761 states. [2021-10-21 20:27:13,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40761 to 35782. [2021-10-21 20:27:13,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35782 states, 35781 states have (on average 1.0804896453425001) internal successors, (38661), 35781 states have internal predecessors, (38661), 0 states have call successors, (0), 0 states 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 20:27:13,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35782 states to 35782 states and 38661 transitions. [2021-10-21 20:27:13,705 INFO L78 Accepts]: Start accepts. Automaton has 35782 states and 38661 transitions. Word has length 681 [2021-10-21 20:27:13,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:27:13,705 INFO L470 AbstractCegarLoop]: Abstraction has 35782 states and 38661 transitions. [2021-10-21 20:27:13,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states 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 20:27:13,706 INFO L276 IsEmpty]: Start isEmpty. Operand 35782 states and 38661 transitions. [2021-10-21 20:27:13,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2021-10-21 20:27:13,736 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:27:13,737 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 7, 6, 6, 6, 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, 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, 1, 1, 1, 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 20:27:13,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-21 20:27:13,737 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:27:13,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:27:13,738 INFO L82 PathProgramCache]: Analyzing trace with hash 63411677, now seen corresponding path program 1 times [2021-10-21 20:27:13,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:27:13,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897648906] [2021-10-21 20:27:13,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:27:13,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:27:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:27:14,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2426 backedges. 1438 proven. 0 refuted. 0 times theorem prover too weak. 988 trivial. 0 not checked. [2021-10-21 20:27:14,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:27:14,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897648906] [2021-10-21 20:27:14,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897648906] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:27:14,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:27:14,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:27:14,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882013801] [2021-10-21 20:27:14,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:27:14,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:27:14,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:27:14,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:27:14,098 INFO L87 Difference]: Start difference. First operand 35782 states and 38661 transitions. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states 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 20:27:15,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:27:15,139 INFO L93 Difference]: Finished difference Result 70477 states and 76233 transitions. [2021-10-21 20:27:15,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:27:15,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 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 900 [2021-10-21 20:27:15,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:27:15,171 INFO L225 Difference]: With dead ends: 70477 [2021-10-21 20:27:15,171 INFO L226 Difference]: Without dead ends: 37093 [2021-10-21 20:27:15,183 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 20:27:15,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37093 states. [2021-10-21 20:27:15,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37093 to 30630. [2021-10-21 20:27:15,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30630 states, 30629 states have (on average 1.0744392569133827) internal successors, (32909), 30629 states have internal predecessors, (32909), 0 states have call successors, (0), 0 states 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 20:27:15,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30630 states to 30630 states and 32909 transitions. [2021-10-21 20:27:15,763 INFO L78 Accepts]: Start accepts. Automaton has 30630 states and 32909 transitions. Word has length 900 [2021-10-21 20:27:15,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:27:15,764 INFO L470 AbstractCegarLoop]: Abstraction has 30630 states and 32909 transitions. [2021-10-21 20:27:15,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states 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 20:27:15,765 INFO L276 IsEmpty]: Start isEmpty. Operand 30630 states and 32909 transitions. [2021-10-21 20:27:15,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 924 [2021-10-21 20:27:15,794 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:27:15,795 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:27:15,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-21 20:27:15,795 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:27:15,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:27:15,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1056427581, now seen corresponding path program 1 times [2021-10-21 20:27:15,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:27:15,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536328700] [2021-10-21 20:27:15,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:27:15,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:27:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:27:16,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2513 backedges. 1997 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2021-10-21 20:27:16,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:27:16,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536328700] [2021-10-21 20:27:16,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536328700] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:27:16,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:27:16,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:27:16,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648439550] [2021-10-21 20:27:16,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:27:16,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:27:16,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:27:16,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:27:16,126 INFO L87 Difference]: Start difference. First operand 30630 states and 32909 transitions. Second operand has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 0 states have call successors, (0), 0 states 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 20:27:17,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:27:17,666 INFO L93 Difference]: Finished difference Result 64218 states and 68986 transitions. [2021-10-21 20:27:17,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:27:17,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 0 states have call successors, (0), 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 923 [2021-10-21 20:27:17,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:27:17,698 INFO L225 Difference]: With dead ends: 64218 [2021-10-21 20:27:17,698 INFO L226 Difference]: Without dead ends: 34698 [2021-10-21 20:27:17,711 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 20:27:17,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34698 states. [2021-10-21 20:27:18,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34698 to 24360. [2021-10-21 20:27:18,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24360 states, 24359 states have (on average 1.075208341885956) internal successors, (26191), 24359 states have internal predecessors, (26191), 0 states have call successors, (0), 0 states 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 20:27:18,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24360 states to 24360 states and 26191 transitions. [2021-10-21 20:27:18,229 INFO L78 Accepts]: Start accepts. Automaton has 24360 states and 26191 transitions. Word has length 923 [2021-10-21 20:27:18,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:27:18,230 INFO L470 AbstractCegarLoop]: Abstraction has 24360 states and 26191 transitions. [2021-10-21 20:27:18,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 0 states have call successors, (0), 0 states 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 20:27:18,231 INFO L276 IsEmpty]: Start isEmpty. Operand 24360 states and 26191 transitions. [2021-10-21 20:27:18,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1281 [2021-10-21 20:27:18,266 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:27:18,267 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, 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, 9, 9, 9, 9, 9, 9, 9, 9, 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, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:27:18,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-21 20:27:18,267 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:27:18,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:27:18,268 INFO L82 PathProgramCache]: Analyzing trace with hash 786284418, now seen corresponding path program 1 times [2021-10-21 20:27:18,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:27:18,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100089194] [2021-10-21 20:27:18,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:27:18,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:27:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:27:18,646 INFO L134 CoverageAnalysis]: Checked inductivity of 5278 backedges. 3284 proven. 0 refuted. 0 times theorem prover too weak. 1994 trivial. 0 not checked. [2021-10-21 20:27:18,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:27:18,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100089194] [2021-10-21 20:27:18,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100089194] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:27:18,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:27:18,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:27:18,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331921852] [2021-10-21 20:27:18,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:27:18,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:27:18,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:27:18,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:27:18,649 INFO L87 Difference]: Start difference. First operand 24360 states and 26191 transitions. Second operand has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states 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 20:27:19,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:27:19,428 INFO L93 Difference]: Finished difference Result 36905 states and 39567 transitions. [2021-10-21 20:27:19,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:27:19,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 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 1280 [2021-10-21 20:27:19,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:27:19,430 INFO L225 Difference]: With dead ends: 36905 [2021-10-21 20:27:19,430 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 20:27:19,437 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:27:19,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 20:27:19,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 20:27:19,438 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 20:27:19,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 20:27:19,438 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1280 [2021-10-21 20:27:19,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:27:19,438 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:27:19,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states 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 20:27:19,439 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:27:19,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 20:27:19,441 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:27:19,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-21 20:27:19,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 20:27:19,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:27:24,516 WARN L207 SmtUtils]: Spent 5.06 s on a formula simplification. DAG size of input: 1322 DAG size of output: 827 [2021-10-21 20:27:24,524 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:27:28,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:27:34,717 WARN L207 SmtUtils]: Spent 5.99 s on a formula simplification. DAG size of input: 726 DAG size of output: 110 [2021-10-21 20:27:40,694 WARN L207 SmtUtils]: Spent 5.97 s on a formula simplification. DAG size of input: 717 DAG size of output: 110 [2021-10-21 20:27:40,697 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-10-21 20:27:40,698 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,698 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-10-21 20:27:40,698 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,698 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,698 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,698 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,698 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,698 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,698 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-10-21 20:27:40,699 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-10-21 20:27:40,699 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-10-21 20:27:40,699 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,699 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,699 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,699 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,699 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,700 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,700 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,700 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,700 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,700 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,700 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-10-21 20:27:40,700 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-10-21 20:27:40,701 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-10-21 20:27:40,701 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,701 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-10-21 20:27:40,701 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-10-21 20:27:40,701 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,701 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,701 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,701 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,701 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,701 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,701 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-10-21 20:27:40,701 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-10-21 20:27:40,701 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-10-21 20:27:40,702 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,702 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,702 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,702 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse11 (<= (+ ~a23~0 55) 0)) (.cse10 (<= ~a23~0 312)) (.cse8 (<= (+ ~a23~0 304) 0)) (.cse3 (<= ~a29~0 220)) (.cse7 (= ~a25~0 11)) (.cse17 (<= (+ ~a23~0 43) 0)) (.cse6 (= ~a4~0 0)) (.cse13 (<= (+ 28470 ~a29~0) 0)) (.cse19 (= ~a25~0 9)) (.cse18 (<= ~a29~0 277)) (.cse12 (= ~a25~0 12)) (.cse20 (<= ~a29~0 275)) (.cse1 (< 140 ~a29~0)) (.cse9 (<= ~a25~0 10)) (.cse0 (= ~a25~0 13)) (.cse14 (<= 160 ~a23~0)) (.cse15 (<= ~a23~0 600000)) (.cse2 (= ~a3~0 1)) (.cse4 (= ~a4~0 1)) (.cse5 (= ~a8~0 15)) (.cse16 (= ~a25~0 10))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse3 .cse5) (and .cse9 .cse2 .cse4 .cse10 .cse5) (and .cse11 .cse12 .cse6 .cse13 .cse2 .cse5) (and .cse12 .cse2 .cse4 .cse10 .cse5 .cse14) (and .cse0 .cse11 .cse1 (<= ~a29~0 245) .cse2 .cse4 .cse5) (and .cse15 .cse1 .cse9 .cse2 .cse4 .cse5) (and .cse0 .cse1 (<= ~a29~0 240) .cse2 .cse4 .cse10 .cse5) (and .cse6 .cse8 .cse2 .cse3 .cse5 .cse16) (and (<= 260 ~a29~0) .cse17 (or .cse18 (not (= 2 ULTIMATE.start_calculate_output_~input))) .cse6 .cse19 .cse2 .cse5) (and .cse1 .cse7 (<= ~a29~0 274) (<= (+ 119992 ~a23~0) 0) .cse4 .cse5) (and .cse15 .cse1 .cse7 .cse2 .cse4 .cse5) (and .cse20 .cse12 .cse1 .cse6 .cse2 .cse5) (and .cse17 .cse6 .cse13 .cse19 .cse2 .cse5) (and .cse15 (or (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse18) .cse12 .cse1 .cse2 (< 306 ~a23~0) .cse4 .cse5) (and .cse20 .cse1 .cse9 .cse2 .cse4 .cse5) (and .cse0 .cse15 .cse2 .cse4 .cse5 .cse14) (and .cse15 .cse2 .cse4 .cse5 .cse16))) [2021-10-21 20:27:40,702 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,703 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-10-21 20:27:40,703 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-10-21 20:27:40,703 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,703 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,703 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,703 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,703 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,703 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,703 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-10-21 20:27:40,703 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-10-21 20:27:40,703 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-10-21 20:27:40,703 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-10-21 20:27:40,703 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,703 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,704 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,704 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,704 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,704 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,704 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,704 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-10-21 20:27:40,704 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-10-21 20:27:40,704 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-10-21 20:27:40,704 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,704 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,704 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,704 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,704 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,704 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,704 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,705 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,705 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,705 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-21 20:27:40,705 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-10-21 20:27:40,705 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-10-21 20:27:40,705 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,705 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse11 (<= (+ ~a23~0 55) 0)) (.cse10 (<= ~a23~0 312)) (.cse8 (<= (+ ~a23~0 304) 0)) (.cse3 (<= ~a29~0 220)) (.cse7 (= ~a25~0 11)) (.cse17 (<= (+ ~a23~0 43) 0)) (.cse6 (= ~a4~0 0)) (.cse13 (<= (+ 28470 ~a29~0) 0)) (.cse19 (= ~a25~0 9)) (.cse18 (<= ~a29~0 277)) (.cse12 (= ~a25~0 12)) (.cse20 (<= ~a29~0 275)) (.cse1 (< 140 ~a29~0)) (.cse9 (<= ~a25~0 10)) (.cse0 (= ~a25~0 13)) (.cse14 (<= 160 ~a23~0)) (.cse15 (<= ~a23~0 600000)) (.cse2 (= ~a3~0 1)) (.cse4 (= ~a4~0 1)) (.cse5 (= ~a8~0 15)) (.cse16 (= ~a25~0 10))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse3 .cse5) (and .cse9 .cse2 .cse4 .cse10 .cse5) (and .cse11 .cse12 .cse6 .cse13 .cse2 .cse5) (and .cse12 .cse2 .cse4 .cse10 .cse5 .cse14) (and .cse0 .cse11 .cse1 (<= ~a29~0 245) .cse2 .cse4 .cse5) (and .cse15 .cse1 .cse9 .cse2 .cse4 .cse5) (and .cse0 .cse1 (<= ~a29~0 240) .cse2 .cse4 .cse10 .cse5) (and .cse6 .cse8 .cse2 .cse3 .cse5 .cse16) (and (<= 260 ~a29~0) .cse17 (or .cse18 (not (= 2 ULTIMATE.start_calculate_output_~input))) .cse6 .cse19 .cse2 .cse5) (and .cse1 .cse7 (<= ~a29~0 274) (<= (+ 119992 ~a23~0) 0) .cse4 .cse5) (and .cse15 .cse1 .cse7 .cse2 .cse4 .cse5) (and .cse20 .cse12 .cse1 .cse6 .cse2 .cse5) (and .cse17 .cse6 .cse13 .cse19 .cse2 .cse5) (and .cse15 (or (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse18) .cse12 .cse1 .cse2 (< 306 ~a23~0) .cse4 .cse5) (and .cse20 .cse1 .cse9 .cse2 .cse4 .cse5) (and .cse0 .cse15 .cse2 .cse4 .cse5 .cse14) (and .cse15 .cse2 .cse4 .cse5 .cse16))) [2021-10-21 20:27:40,705 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,705 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,705 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,705 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,705 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,705 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,706 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,706 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,706 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-10-21 20:27:40,706 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-10-21 20:27:40,706 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-10-21 20:27:40,706 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-10-21 20:27:40,706 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-10-21 20:27:40,706 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-10-21 20:27:40,706 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-10-21 20:27:40,706 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,706 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,706 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,706 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,706 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,706 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,707 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,707 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,707 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,707 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,707 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 20:27:40,707 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-10-21 20:27:40,707 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-10-21 20:27:40,707 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-10-21 20:27:40,707 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-10-21 20:27:40,707 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,707 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,707 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,707 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,707 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,707 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-10-21 20:27:40,708 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-10-21 20:27:40,708 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-10-21 20:27:40,708 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,708 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,708 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,708 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,708 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-10-21 20:27:40,708 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-10-21 20:27:40,708 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,708 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,708 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,708 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,708 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,709 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,709 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-10-21 20:27:40,709 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-10-21 20:27:40,709 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,709 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,709 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-10-21 20:27:40,709 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-10-21 20:27:40,709 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-10-21 20:27:40,709 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 20:27:40,709 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 181) no Hoare annotation was computed. [2021-10-21 20:27:40,709 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,709 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,709 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,709 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,710 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,711 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,711 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,711 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,711 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-10-21 20:27:40,711 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-10-21 20:27:40,711 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-21 20:27:40,711 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,711 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,711 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,711 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,711 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,711 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,711 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-10-21 20:27:40,711 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-10-21 20:27:40,711 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,712 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,713 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,713 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,713 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,713 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,713 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,713 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,713 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-10-21 20:27:40,713 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-10-21 20:27:40,713 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-21 20:27:40,713 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-10-21 20:27:40,713 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-10-21 20:27:40,713 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,713 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,713 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,714 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,714 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,714 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,714 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,714 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-10-21 20:27:40,714 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-10-21 20:27:40,714 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-10-21 20:27:40,715 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,715 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,715 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,715 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-10-21 20:27:40,715 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-10-21 20:27:40,715 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,715 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,715 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,716 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,716 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,716 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-10-21 20:27:40,716 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-10-21 20:27:40,716 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,716 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,716 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-10-21 20:27:40,716 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-10-21 20:27:40,716 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,716 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 20:27:40,716 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,716 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,716 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,717 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,717 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,717 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-10-21 20:27:40,717 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-10-21 20:27:40,717 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-10-21 20:27:40,717 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-10-21 20:27:40,717 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,717 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,718 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,718 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,718 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,718 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,718 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,718 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,718 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-10-21 20:27:40,718 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-10-21 20:27:40,719 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-10-21 20:27:40,719 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-10-21 20:27:40,719 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-10-21 20:27:40,719 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-10-21 20:27:40,719 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,719 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,719 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,719 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,720 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,720 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,720 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,720 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-10-21 20:27:40,720 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-10-21 20:27:40,720 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 20:27:40,720 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,721 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,721 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,721 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,721 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,721 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,721 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-10-21 20:27:40,721 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-10-21 20:27:40,721 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,722 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,722 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,722 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,722 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,722 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,722 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,722 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-10-21 20:27:40,723 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-10-21 20:27:40,723 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,723 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,723 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-10-21 20:27:40,723 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-10-21 20:27:40,723 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-21 20:27:40,723 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-10-21 20:27:40,728 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:27:40,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:27:40 BoogieIcfgContainer [2021-10-21 20:27:40,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:27:40,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:27:40,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:27:40,763 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:27:40,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:26:11" (3/4) ... [2021-10-21 20:27:40,767 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 20:27:40,812 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-21 20:27:40,815 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 20:27:40,817 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:27:40,819 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:27:40,980 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:27:40,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:27:40,981 INFO L168 Benchmark]: Toolchain (without parser) took 92540.48 ms. Allocated memory was 96.5 MB in the beginning and 6.2 GB in the end (delta: 6.1 GB). Free memory was 58.3 MB in the beginning and 4.8 GB in the end (delta: -4.7 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.1 GB. [2021-10-21 20:27:40,982 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 96.5 MB. Free memory was 65.1 MB in the beginning and 65.1 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:27:40,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 924.39 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 58.1 MB in the beginning and 73.7 MB in the end (delta: -15.5 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:27:40,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 161.85 ms. Allocated memory is still 132.1 MB. Free memory was 73.7 MB in the beginning and 56.8 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:27:40,983 INFO L168 Benchmark]: Boogie Preprocessor took 166.76 ms. Allocated memory is still 132.1 MB. Free memory was 56.8 MB in the beginning and 92.3 MB in the end (delta: -35.6 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:27:40,984 INFO L168 Benchmark]: RCFGBuilder took 1838.51 ms. Allocated memory was 132.1 MB in the beginning and 216.0 MB in the end (delta: 83.9 MB). Free memory was 92.3 MB in the beginning and 142.2 MB in the end (delta: -49.9 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:27:40,984 INFO L168 Benchmark]: TraceAbstraction took 89223.35 ms. Allocated memory was 216.0 MB in the beginning and 6.2 GB in the end (delta: 6.0 GB). Free memory was 141.2 MB in the beginning and 4.8 GB in the end (delta: -4.7 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.1 GB. [2021-10-21 20:27:40,984 INFO L168 Benchmark]: Witness Printer took 217.88 ms. Allocated memory is still 6.2 GB. Free memory was 4.8 GB in the beginning and 4.8 GB in the end (delta: 24.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:27:40,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 96.5 MB. Free memory was 65.1 MB in the beginning and 65.1 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 924.39 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 58.1 MB in the beginning and 73.7 MB in the end (delta: -15.5 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 161.85 ms. Allocated memory is still 132.1 MB. Free memory was 73.7 MB in the beginning and 56.8 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 166.76 ms. Allocated memory is still 132.1 MB. Free memory was 56.8 MB in the beginning and 92.3 MB in the end (delta: -35.6 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1838.51 ms. Allocated memory was 132.1 MB in the beginning and 216.0 MB in the end (delta: 83.9 MB). Free memory was 92.3 MB in the beginning and 142.2 MB in the end (delta: -49.9 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 89223.35 ms. Allocated memory was 216.0 MB in the beginning and 6.2 GB in the end (delta: 6.0 GB). Free memory was 141.2 MB in the beginning and 4.8 GB in the end (delta: -4.7 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.1 GB. * Witness Printer took 217.88 ms. Allocated memory is still 6.2 GB. Free memory was 4.8 GB in the beginning and 4.8 GB in the end (delta: 24.6 MB). Peak memory consumption was 25.2 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: 181]: 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: 89131.9ms, OverallIterations: 30, TraceHistogramMax: 11, EmptinessCheckTime: 754.2ms, AutomataDifference: 36555.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 21255.2ms, InitialAbstractionConstructionTime: 18.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4650 SDtfs, 6101 SDslu, 914 SDs, 0 SdLazy, 25623 SolverSat, 4253 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24834.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2190 GetRequests, 2104 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 747.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=35782occurred in iteration=27, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8776.5ms AutomataMinimizationTime, 30 MinimizatonAttempts, 47674 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 169 NumberOfFragments, 761 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2084710 FormulaSimplificationTreeSizeReduction, 9266.1ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 869935 FormulaSimplificationTreeSizeReductionInter, 11969.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 683.3ms SsaConstructionTime, 2570.4ms SatisfiabilityAnalysisTime, 14833.1ms InterpolantComputationTime, 15917 NumberOfCodeBlocks, 15917 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 15882 ConstructedInterpolants, 0 QuantifiedInterpolants, 52977 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2816 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 35 InterpolantComputations, 27 PerfectInterpolantSequences, 25787/26426 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: (((((((((((((((((((((a25 == 13 && 140 < a29) && a3 == 1) && a29 <= 220) && a4 == 1) && a8 == 15) || (((((a4 == 0 && a25 == 11) && a23 + 304 <= 0) && a3 == 1) && a29 <= 220) && a8 == 15)) || ((((a25 <= 10 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a23 + 55 <= 0 && a25 == 12) && a4 == 0) && 28470 + a29 <= 0) && a3 == 1) && a8 == 15)) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && 160 <= a23)) || ((((((a25 == 13 && a23 + 55 <= 0) && 140 < a29) && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a23 <= 600000 && 140 < a29) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((a25 == 13 && 140 < a29) && a29 <= 240) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a4 == 0 && a23 + 304 <= 0) && a3 == 1) && a29 <= 220) && a8 == 15) && a25 == 10)) || ((((((260 <= a29 && a23 + 43 <= 0) && (a29 <= 277 || !(2 == input))) && a4 == 0) && a25 == 9) && a3 == 1) && a8 == 15)) || (((((140 < a29 && a25 == 11) && a29 <= 274) && 119992 + a23 <= 0) && a4 == 1) && a8 == 15)) || (((((a23 <= 600000 && 140 < a29) && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a29 <= 275 && a25 == 12) && 140 < a29) && a4 == 0) && a3 == 1) && a8 == 15)) || (((((a23 + 43 <= 0 && a4 == 0) && 28470 + a29 <= 0) && a25 == 9) && a3 == 1) && a8 == 15)) || (((((((a23 <= 600000 && (!(6 == input) || a29 <= 277)) && a25 == 12) && 140 < a29) && a3 == 1) && 306 < a23) && a4 == 1) && a8 == 15)) || (((((a29 <= 275 && 140 < a29) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 == 13 && a23 <= 600000) && a3 == 1) && a4 == 1) && a8 == 15) && 160 <= a23)) || ((((a23 <= 600000 && a3 == 1) && a4 == 1) && a8 == 15) && a25 == 10) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((a25 == 13 && 140 < a29) && a3 == 1) && a29 <= 220) && a4 == 1) && a8 == 15) || (((((a4 == 0 && a25 == 11) && a23 + 304 <= 0) && a3 == 1) && a29 <= 220) && a8 == 15)) || ((((a25 <= 10 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a23 + 55 <= 0 && a25 == 12) && a4 == 0) && 28470 + a29 <= 0) && a3 == 1) && a8 == 15)) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && 160 <= a23)) || ((((((a25 == 13 && a23 + 55 <= 0) && 140 < a29) && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a23 <= 600000 && 140 < a29) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((a25 == 13 && 140 < a29) && a29 <= 240) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a4 == 0 && a23 + 304 <= 0) && a3 == 1) && a29 <= 220) && a8 == 15) && a25 == 10)) || ((((((260 <= a29 && a23 + 43 <= 0) && (a29 <= 277 || !(2 == input))) && a4 == 0) && a25 == 9) && a3 == 1) && a8 == 15)) || (((((140 < a29 && a25 == 11) && a29 <= 274) && 119992 + a23 <= 0) && a4 == 1) && a8 == 15)) || (((((a23 <= 600000 && 140 < a29) && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a29 <= 275 && a25 == 12) && 140 < a29) && a4 == 0) && a3 == 1) && a8 == 15)) || (((((a23 + 43 <= 0 && a4 == 0) && 28470 + a29 <= 0) && a25 == 9) && a3 == 1) && a8 == 15)) || (((((((a23 <= 600000 && (!(6 == input) || a29 <= 277)) && a25 == 12) && 140 < a29) && a3 == 1) && 306 < a23) && a4 == 1) && a8 == 15)) || (((((a29 <= 275 && 140 < a29) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 == 13 && a23 <= 600000) && a3 == 1) && a4 == 1) && a8 == 15) && 160 <= a23)) || ((((a23 <= 600000 && a3 == 1) && a4 == 1) && a8 == 15) && a25 == 10) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-21 20:27:41,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4800ae-a807-4412-9d5b-51aa38a82cf3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...