./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label53.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label53.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg --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 701e1463647edc9b85a4510e73732e8fae9832885edcd79ec0113cacf754e2d5 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:36:12,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:36:12,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:36:13,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:36:13,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:36:13,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:36:13,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:36:13,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:36:13,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:36:13,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:36:13,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:36:13,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:36:13,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:36:13,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:36:13,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:36:13,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:36:13,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:36:13,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:36:13,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:36:13,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:36:13,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:36:13,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:36:13,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:36:13,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:36:13,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:36:13,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:36:13,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:36:13,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:36:13,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:36:13,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:36:13,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:36:13,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:36:13,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:36:13,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:36:13,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:36:13,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:36:13,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:36:13,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:36:13,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:36:13,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:36:13,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:36:13,061 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:36:13,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:36:13,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:36:13,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:36:13,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:36:13,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:36:13,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:36:13,100 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:36:13,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:36:13,101 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:36:13,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:36:13,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:36:13,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:36:13,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:36:13,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:36:13,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:36:13,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:36:13,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:36:13,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:36:13,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:36:13,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:36:13,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:36:13,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:36:13,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:36:13,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:36:13,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:36:13,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:36:13,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:36:13,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:36:13,108 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:36:13,108 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:36:13,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:36:13,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:36:13,109 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_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 701e1463647edc9b85a4510e73732e8fae9832885edcd79ec0113cacf754e2d5 [2021-10-28 08:36:13,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:36:13,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:36:13,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:36:13,393 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:36:13,394 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:36:13,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/eca-rers2012/Problem10_label53.c [2021-10-28 08:36:13,504 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/data/8ec134e48/dd69cc59e92e4b6386c4708ee9389294/FLAG79dc6a60a [2021-10-28 08:36:14,131 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:36:14,132 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/sv-benchmarks/c/eca-rers2012/Problem10_label53.c [2021-10-28 08:36:14,152 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/data/8ec134e48/dd69cc59e92e4b6386c4708ee9389294/FLAG79dc6a60a [2021-10-28 08:36:14,353 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/data/8ec134e48/dd69cc59e92e4b6386c4708ee9389294 [2021-10-28 08:36:14,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:36:14,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:36:14,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:36:14,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:36:14,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:36:14,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:36:14" (1/1) ... [2021-10-28 08:36:14,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ca87ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:14, skipping insertion in model container [2021-10-28 08:36:14,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:36:14" (1/1) ... [2021-10-28 08:36:14,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:36:14,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:36:14,725 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_a81a975f-58b6-4c45-a95a-564a31c04200/sv-benchmarks/c/eca-rers2012/Problem10_label53.c[4908,4921] [2021-10-28 08:36:14,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:36:14,919 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:36:14,943 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_a81a975f-58b6-4c45-a95a-564a31c04200/sv-benchmarks/c/eca-rers2012/Problem10_label53.c[4908,4921] [2021-10-28 08:36:15,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:36:15,032 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:36:15,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:15 WrapperNode [2021-10-28 08:36:15,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:36:15,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:36:15,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:36:15,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:36:15,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:15" (1/1) ... [2021-10-28 08:36:15,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:15" (1/1) ... [2021-10-28 08:36:15,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:36:15,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:36:15,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:36:15,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:36:15,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:15" (1/1) ... [2021-10-28 08:36:15,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:15" (1/1) ... [2021-10-28 08:36:15,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:15" (1/1) ... [2021-10-28 08:36:15,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:15" (1/1) ... [2021-10-28 08:36:15,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:15" (1/1) ... [2021-10-28 08:36:15,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:15" (1/1) ... [2021-10-28 08:36:15,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:15" (1/1) ... [2021-10-28 08:36:15,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:36:15,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:36:15,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:36:15,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:36:15,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:15" (1/1) ... [2021-10-28 08:36:15,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:36:15,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:36:15,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:36:15,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:36:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:36:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:36:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:36:15,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:36:16,587 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:36:16,588 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 08:36:16,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:36:16 BoogieIcfgContainer [2021-10-28 08:36:16,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:36:16,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:36:16,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:36:16,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:36:16,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:36:14" (1/3) ... [2021-10-28 08:36:16,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63840ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:36:16, skipping insertion in model container [2021-10-28 08:36:16,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:36:15" (2/3) ... [2021-10-28 08:36:16,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63840ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:36:16, skipping insertion in model container [2021-10-28 08:36:16,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:36:16" (3/3) ... [2021-10-28 08:36:16,601 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label53.c [2021-10-28 08:36:16,610 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:36:16,610 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 08:36:16,686 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:36:16,692 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:36:16,693 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 08:36:16,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:16,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-28 08:36:16,723 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:16,723 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:36:16,724 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:36:16,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:16,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1824112922, now seen corresponding path program 1 times [2021-10-28 08:36:16,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:16,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163408251] [2021-10-28 08:36:16,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:16,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:16,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:36:16,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:16,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163408251] [2021-10-28 08:36:16,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163408251] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:16,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:16,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:36:16,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354767401] [2021-10-28 08:36:16,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:36:16,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:16,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:36:16,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:36:16,999 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 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 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:17,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:17,915 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2021-10-28 08:36:17,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:36:17,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2021-10-28 08:36:17,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:17,938 INFO L225 Difference]: With dead ends: 552 [2021-10-28 08:36:17,938 INFO L226 Difference]: Without dead ends: 282 [2021-10-28 08:36:17,946 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:36:17,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-10-28 08:36:18,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-10-28 08:36:18,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.5373665480427046) internal successors, (432), 281 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:18,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2021-10-28 08:36:18,031 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 42 [2021-10-28 08:36:18,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:18,032 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2021-10-28 08:36:18,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:18,032 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2021-10-28 08:36:18,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-10-28 08:36:18,039 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:18,040 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:36:18,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:36:18,040 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:36:18,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:18,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1321315165, now seen corresponding path program 1 times [2021-10-28 08:36:18,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:18,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518862614] [2021-10-28 08:36:18,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:18,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:18,274 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:36:18,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:18,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518862614] [2021-10-28 08:36:18,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518862614] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:18,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:18,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:36:18,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505974965] [2021-10-28 08:36:18,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:36:18,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:18,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:36:18,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:36:18,283 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:18,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:18,849 INFO L93 Difference]: Finished difference Result 701 states and 1076 transitions. [2021-10-28 08:36:18,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:36:18,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-10-28 08:36:18,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:18,853 INFO L225 Difference]: With dead ends: 701 [2021-10-28 08:36:18,853 INFO L226 Difference]: Without dead ends: 421 [2021-10-28 08:36:18,855 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:36:18,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-28 08:36:18,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-10-28 08:36:18,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.4428571428571428) internal successors, (606), 420 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:18,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 606 transitions. [2021-10-28 08:36:18,887 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 606 transitions. Word has length 111 [2021-10-28 08:36:18,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:18,888 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 606 transitions. [2021-10-28 08:36:18,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:18,888 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 606 transitions. [2021-10-28 08:36:18,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-10-28 08:36:18,897 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:18,898 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:36:18,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:36:18,899 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:36:18,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:18,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1206282540, now seen corresponding path program 1 times [2021-10-28 08:36:18,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:18,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297868321] [2021-10-28 08:36:18,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:18,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:19,126 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 35 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:36:19,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:19,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297868321] [2021-10-28 08:36:19,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297868321] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:36:19,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774036213] [2021-10-28 08:36:19,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:19,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:36:19,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:36:19,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:36:19,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 08:36:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:19,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:36:19,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:36:19,600 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:36:19,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774036213] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:19,601 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:36:19,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-28 08:36:19,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331443026] [2021-10-28 08:36:19,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:36:19,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:19,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:36:19,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:36:19,607 INFO L87 Difference]: Start difference. First operand 421 states and 606 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:20,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:20,191 INFO L93 Difference]: Finished difference Result 979 states and 1465 transitions. [2021-10-28 08:36:20,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:36:20,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2021-10-28 08:36:20,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:20,199 INFO L225 Difference]: With dead ends: 979 [2021-10-28 08:36:20,200 INFO L226 Difference]: Without dead ends: 699 [2021-10-28 08:36:20,201 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:36:20,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-10-28 08:36:20,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 560. [2021-10-28 08:36:20,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.3864042933810377) internal successors, (775), 559 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:20,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 775 transitions. [2021-10-28 08:36:20,217 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 775 transitions. Word has length 117 [2021-10-28 08:36:20,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:20,218 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 775 transitions. [2021-10-28 08:36:20,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:20,219 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 775 transitions. [2021-10-28 08:36:20,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-10-28 08:36:20,223 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:20,224 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:36:20,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-28 08:36:20,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:36:20,451 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:36:20,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:20,452 INFO L85 PathProgramCache]: Analyzing trace with hash -484371775, now seen corresponding path program 1 times [2021-10-28 08:36:20,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:20,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670796127] [2021-10-28 08:36:20,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:20,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:20,671 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:36:20,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:20,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670796127] [2021-10-28 08:36:20,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670796127] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:20,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:20,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:36:20,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393166072] [2021-10-28 08:36:20,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:36:20,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:20,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:36:20,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:36:20,675 INFO L87 Difference]: Start difference. First operand 560 states and 775 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:21,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:21,200 INFO L93 Difference]: Finished difference Result 1257 states and 1732 transitions. [2021-10-28 08:36:21,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:36:21,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2021-10-28 08:36:21,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:21,205 INFO L225 Difference]: With dead ends: 1257 [2021-10-28 08:36:21,205 INFO L226 Difference]: Without dead ends: 699 [2021-10-28 08:36:21,206 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:36:21,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-10-28 08:36:21,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2021-10-28 08:36:21,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.32378223495702) internal successors, (924), 698 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:21,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 924 transitions. [2021-10-28 08:36:21,226 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 924 transitions. Word has length 174 [2021-10-28 08:36:21,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:21,227 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 924 transitions. [2021-10-28 08:36:21,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:21,227 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 924 transitions. [2021-10-28 08:36:21,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-10-28 08:36:21,230 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:21,231 INFO L513 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:36:21,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 08:36:21,231 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:36:21,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:21,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1961519177, now seen corresponding path program 1 times [2021-10-28 08:36:21,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:21,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046407734] [2021-10-28 08:36:21,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:21,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:21,369 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-28 08:36:21,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:21,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046407734] [2021-10-28 08:36:21,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046407734] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:21,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:21,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:36:21,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733550527] [2021-10-28 08:36:21,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:36:21,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:21,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:36:21,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:36:21,373 INFO L87 Difference]: Start difference. First operand 699 states and 924 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:21,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:21,985 INFO L93 Difference]: Finished difference Result 1535 states and 2040 transitions. [2021-10-28 08:36:21,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:36:21,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2021-10-28 08:36:21,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:21,993 INFO L225 Difference]: With dead ends: 1535 [2021-10-28 08:36:21,993 INFO L226 Difference]: Without dead ends: 977 [2021-10-28 08:36:21,994 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:36:21,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-10-28 08:36:22,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2021-10-28 08:36:22,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.2059426229508197) internal successors, (1177), 976 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:22,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1177 transitions. [2021-10-28 08:36:22,031 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1177 transitions. Word has length 177 [2021-10-28 08:36:22,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:22,031 INFO L470 AbstractCegarLoop]: Abstraction has 977 states and 1177 transitions. [2021-10-28 08:36:22,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:22,032 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1177 transitions. [2021-10-28 08:36:22,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-10-28 08:36:22,035 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:22,035 INFO L513 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:36:22,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 08:36:22,036 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:36:22,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:22,036 INFO L85 PathProgramCache]: Analyzing trace with hash 458854272, now seen corresponding path program 1 times [2021-10-28 08:36:22,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:22,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42058440] [2021-10-28 08:36:22,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:22,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:22,131 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:36:22,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:22,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42058440] [2021-10-28 08:36:22,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42058440] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:22,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:22,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:36:22,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736282969] [2021-10-28 08:36:22,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:36:22,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:22,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:36:22,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:36:22,134 INFO L87 Difference]: Start difference. First operand 977 states and 1177 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:22,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:22,628 INFO L93 Difference]: Finished difference Result 2091 states and 2587 transitions. [2021-10-28 08:36:22,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:36:22,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2021-10-28 08:36:22,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:22,636 INFO L225 Difference]: With dead ends: 2091 [2021-10-28 08:36:22,636 INFO L226 Difference]: Without dead ends: 1255 [2021-10-28 08:36:22,639 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:36:22,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2021-10-28 08:36:22,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1116. [2021-10-28 08:36:22,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.189237668161435) internal successors, (1326), 1115 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:22,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1326 transitions. [2021-10-28 08:36:22,668 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1326 transitions. Word has length 194 [2021-10-28 08:36:22,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:22,670 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1326 transitions. [2021-10-28 08:36:22,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:22,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1326 transitions. [2021-10-28 08:36:22,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-10-28 08:36:22,675 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:22,676 INFO L513 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:36:22,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 08:36:22,676 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:36:22,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:22,677 INFO L85 PathProgramCache]: Analyzing trace with hash 2011014399, now seen corresponding path program 1 times [2021-10-28 08:36:22,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:22,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694029105] [2021-10-28 08:36:22,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:22,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:22,950 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:36:22,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:22,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694029105] [2021-10-28 08:36:22,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694029105] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:22,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:22,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:36:22,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987780154] [2021-10-28 08:36:22,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:36:22,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:22,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:36:22,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:36:22,954 INFO L87 Difference]: Start difference. First operand 1116 states and 1326 transitions. Second operand has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 6 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:23,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:23,655 INFO L93 Difference]: Finished difference Result 2146 states and 2561 transitions. [2021-10-28 08:36:23,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:36:23,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 6 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 254 [2021-10-28 08:36:23,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:23,663 INFO L225 Difference]: With dead ends: 2146 [2021-10-28 08:36:23,663 INFO L226 Difference]: Without dead ends: 1116 [2021-10-28 08:36:23,664 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:36:23,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-10-28 08:36:23,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2021-10-28 08:36:23,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.1829596412556054) internal successors, (1319), 1115 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:23,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1319 transitions. [2021-10-28 08:36:23,694 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1319 transitions. Word has length 254 [2021-10-28 08:36:23,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:23,694 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1319 transitions. [2021-10-28 08:36:23,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 6 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:23,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1319 transitions. [2021-10-28 08:36:23,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-10-28 08:36:23,700 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:23,701 INFO L513 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:36:23,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 08:36:23,701 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:36:23,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:23,702 INFO L85 PathProgramCache]: Analyzing trace with hash -301674855, now seen corresponding path program 1 times [2021-10-28 08:36:23,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:23,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052063556] [2021-10-28 08:36:23,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:23,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:23,888 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-10-28 08:36:23,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:23,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052063556] [2021-10-28 08:36:23,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052063556] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:23,889 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:23,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:36:23,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618368838] [2021-10-28 08:36:23,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:36:23,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:23,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:36:23,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:36:23,891 INFO L87 Difference]: Start difference. First operand 1116 states and 1319 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:24,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:24,437 INFO L93 Difference]: Finished difference Result 2369 states and 2870 transitions. [2021-10-28 08:36:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:36:24,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 290 [2021-10-28 08:36:24,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:24,447 INFO L225 Difference]: With dead ends: 2369 [2021-10-28 08:36:24,447 INFO L226 Difference]: Without dead ends: 1394 [2021-10-28 08:36:24,451 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:36:24,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-10-28 08:36:24,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2021-10-28 08:36:24,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.174641148325359) internal successors, (1473), 1254 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:24,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1473 transitions. [2021-10-28 08:36:24,489 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1473 transitions. Word has length 290 [2021-10-28 08:36:24,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:24,490 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1473 transitions. [2021-10-28 08:36:24,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:24,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1473 transitions. [2021-10-28 08:36:24,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-10-28 08:36:24,498 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:36:24,498 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:36:24,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 08:36:24,499 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:36:24,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:36:24,500 INFO L85 PathProgramCache]: Analyzing trace with hash 303542513, now seen corresponding path program 1 times [2021-10-28 08:36:24,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:36:24,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248482329] [2021-10-28 08:36:24,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:36:24,501 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:36:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:36:24,676 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-10-28 08:36:24,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:36:24,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248482329] [2021-10-28 08:36:24,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248482329] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:36:24,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:36:24,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:36:24,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748484362] [2021-10-28 08:36:24,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:36:24,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:36:24,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:36:24,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:36:24,686 INFO L87 Difference]: Start difference. First operand 1255 states and 1473 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:25,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:36:25,192 INFO L93 Difference]: Finished difference Result 2645 states and 3102 transitions. [2021-10-28 08:36:25,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:36:25,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 341 [2021-10-28 08:36:25,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:36:25,194 INFO L225 Difference]: With dead ends: 2645 [2021-10-28 08:36:25,194 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 08:36:25,197 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:36:25,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 08:36:25,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 08:36:25,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:25,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 08:36:25,198 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 341 [2021-10-28 08:36:25,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:36:25,198 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:36:25,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:36:25,198 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:36:25,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 08:36:25,201 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:36:25,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 08:36:25,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 08:36:25,208 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:36:25,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:36:25,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:36:25,374 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-28 08:36:25,374 INFO L857 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-10-28 08:36:25,374 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-10-28 08:36:25,375 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-10-28 08:36:25,375 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-10-28 08:36:25,375 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-10-28 08:36:25,375 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,375 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,375 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,375 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,375 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,375 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,376 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-10-28 08:36:25,376 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-28 08:36:25,376 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-28 08:36:25,376 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-28 08:36:25,376 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-28 08:36:25,376 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-28 08:36:25,376 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-28 08:36:25,376 INFO L857 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-10-28 08:36:25,376 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-10-28 08:36:25,377 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-10-28 08:36:25,377 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-10-28 08:36:25,377 INFO L857 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-10-28 08:36:25,377 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-10-28 08:36:25,377 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,377 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,377 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,377 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,377 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,378 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,378 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-10-28 08:36:25,378 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-10-28 08:36:25,378 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-10-28 08:36:25,378 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-28 08:36:25,378 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-28 08:36:25,378 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-28 08:36:25,378 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-28 08:36:25,378 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-28 08:36:25,378 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-28 08:36:25,379 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-10-28 08:36:25,379 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-10-28 08:36:25,379 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-10-28 08:36:25,379 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,379 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,379 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,379 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,379 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,379 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,380 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-10-28 08:36:25,380 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-10-28 08:36:25,380 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-10-28 08:36:25,380 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-28 08:36:25,380 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-28 08:36:25,380 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-28 08:36:25,380 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-28 08:36:25,380 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-28 08:36:25,380 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-28 08:36:25,380 INFO L857 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-10-28 08:36:25,381 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-10-28 08:36:25,381 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-10-28 08:36:25,381 INFO L857 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-10-28 08:36:25,381 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,381 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,381 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,381 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,381 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,381 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,382 INFO L857 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-10-28 08:36:25,382 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-10-28 08:36:25,382 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-28 08:36:25,382 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-28 08:36:25,382 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-28 08:36:25,382 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-28 08:36:25,382 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-28 08:36:25,382 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-28 08:36:25,382 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-10-28 08:36:25,382 INFO L857 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-10-28 08:36:25,383 INFO L857 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-10-28 08:36:25,383 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,383 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,383 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,383 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,383 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,383 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-10-28 08:36:25,383 INFO L857 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-10-28 08:36:25,383 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-10-28 08:36:25,383 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-10-28 08:36:25,383 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-28 08:36:25,384 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-28 08:36:25,384 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-28 08:36:25,384 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-28 08:36:25,384 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-28 08:36:25,384 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-10-28 08:36:25,384 INFO L857 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-10-28 08:36:25,384 INFO L857 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-10-28 08:36:25,384 INFO L857 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-10-28 08:36:25,384 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-10-28 08:36:25,384 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,385 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,385 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,385 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,385 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,385 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-10-28 08:36:25,385 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 08:36:25,385 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-28 08:36:25,385 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-28 08:36:25,385 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-28 08:36:25,385 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-28 08:36:25,386 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-28 08:36:25,386 INFO L853 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 4) .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= 9 ~a19~0)) (and (<= ~a19~0 6) .cse1 .cse2) (and (<= ~a10~0 1) .cse1 .cse2) (and .cse0 .cse1 (= ~a10~0 2) .cse2))) [2021-10-28 08:36:25,386 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-10-28 08:36:25,386 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-10-28 08:36:25,386 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-10-28 08:36:25,388 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-10-28 08:36:25,389 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,389 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,389 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,389 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,389 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,389 INFO L857 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-10-28 08:36:25,390 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-10-28 08:36:25,390 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-10-28 08:36:25,390 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-28 08:36:25,390 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-28 08:36:25,390 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-28 08:36:25,390 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-28 08:36:25,391 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-28 08:36:25,391 INFO L857 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-10-28 08:36:25,391 INFO L857 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-10-28 08:36:25,391 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-28 08:36:25,391 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-10-28 08:36:25,391 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-10-28 08:36:25,391 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-10-28 08:36:25,392 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 08:36:25,392 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,392 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,392 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,392 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,392 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,393 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-28 08:36:25,393 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-28 08:36:25,393 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-28 08:36:25,393 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-28 08:36:25,393 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-28 08:36:25,393 INFO L857 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-10-28 08:36:25,394 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-10-28 08:36:25,394 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-10-28 08:36:25,394 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-10-28 08:36:25,394 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,394 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,394 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,398 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,399 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 08:36:25,399 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,399 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-10-28 08:36:25,399 INFO L857 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-10-28 08:36:25,399 INFO L857 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-10-28 08:36:25,400 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-10-28 08:36:25,400 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-28 08:36:25,400 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-28 08:36:25,400 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-28 08:36:25,400 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-28 08:36:25,400 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-28 08:36:25,400 INFO L857 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-10-28 08:36:25,401 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-10-28 08:36:25,401 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-10-28 08:36:25,401 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 4) .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= 9 ~a19~0)) (and (<= ~a19~0 6) .cse1 .cse2) (and (<= ~a10~0 1) .cse1 .cse2) (and .cse0 .cse1 (= ~a10~0 2) .cse2))) [2021-10-28 08:36:25,401 INFO L857 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-10-28 08:36:25,401 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,401 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,402 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,402 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,402 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-28 08:36:25,402 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,402 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,402 INFO L857 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-10-28 08:36:25,403 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-10-28 08:36:25,403 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-10-28 08:36:25,403 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-28 08:36:25,403 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-28 08:36:25,403 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-28 08:36:25,403 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-28 08:36:25,403 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-28 08:36:25,404 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-28 08:36:25,404 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 08:36:25,404 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2021-10-28 08:36:25,404 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-10-28 08:36:25,404 INFO L857 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-10-28 08:36:25,404 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-10-28 08:36:25,404 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-10-28 08:36:25,405 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,405 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,405 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,405 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,405 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,405 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 08:36:25,406 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-10-28 08:36:25,406 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-10-28 08:36:25,406 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-10-28 08:36:25,406 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-28 08:36:25,406 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-28 08:36:25,406 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-28 08:36:25,406 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-28 08:36:25,407 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-28 08:36:25,407 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-28 08:36:25,410 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:36:25,411 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:36:25,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:36:25 BoogieIcfgContainer [2021-10-28 08:36:25,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:36:25,429 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:36:25,429 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:36:25,434 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:36:25,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:36:16" (3/4) ... [2021-10-28 08:36:25,438 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 08:36:25,473 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 08:36:25,475 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 08:36:25,476 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:36:25,477 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:36:25,580 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:36:25,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:36:25,582 INFO L168 Benchmark]: Toolchain (without parser) took 11223.66 ms. Allocated memory was 117.4 MB in the beginning and 234.9 MB in the end (delta: 117.4 MB). Free memory was 84.8 MB in the beginning and 175.4 MB in the end (delta: -90.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:36:25,582 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 117.4 MB. Free memory is still 70.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:36:25,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.29 ms. Allocated memory was 117.4 MB in the beginning and 144.7 MB in the end (delta: 27.3 MB). Free memory was 84.5 MB in the beginning and 100.5 MB in the end (delta: -15.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:36:25,583 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.16 ms. Allocated memory is still 144.7 MB. Free memory was 100.5 MB in the beginning and 92.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:36:25,583 INFO L168 Benchmark]: Boogie Preprocessor took 101.14 ms. Allocated memory is still 144.7 MB. Free memory was 92.8 MB in the beginning and 88.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:36:25,584 INFO L168 Benchmark]: RCFGBuilder took 1373.29 ms. Allocated memory is still 144.7 MB. Free memory was 88.0 MB in the beginning and 67.2 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2021-10-28 08:36:25,584 INFO L168 Benchmark]: TraceAbstraction took 8835.76 ms. Allocated memory was 144.7 MB in the beginning and 234.9 MB in the end (delta: 90.2 MB). Free memory was 66.6 MB in the beginning and 190.3 MB in the end (delta: -123.8 MB). Peak memory consumption was 76.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:36:25,585 INFO L168 Benchmark]: Witness Printer took 151.25 ms. Allocated memory is still 234.9 MB. Free memory was 190.3 MB in the beginning and 175.4 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:36:25,587 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 117.4 MB. Free memory is still 70.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 674.29 ms. Allocated memory was 117.4 MB in the beginning and 144.7 MB in the end (delta: 27.3 MB). Free memory was 84.5 MB in the beginning and 100.5 MB in the end (delta: -15.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.16 ms. Allocated memory is still 144.7 MB. Free memory was 100.5 MB in the beginning and 92.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.14 ms. Allocated memory is still 144.7 MB. Free memory was 92.8 MB in the beginning and 88.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1373.29 ms. Allocated memory is still 144.7 MB. Free memory was 88.0 MB in the beginning and 67.2 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8835.76 ms. Allocated memory was 144.7 MB in the beginning and 234.9 MB in the end (delta: 90.2 MB). Free memory was 66.6 MB in the beginning and 190.3 MB in the end (delta: -123.8 MB). Peak memory consumption was 76.5 MB. Max. memory is 16.1 GB. * Witness Printer took 151.25 ms. Allocated memory is still 234.9 MB. Free memory was 190.3 MB in the beginning and 175.4 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 140]: 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, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.7s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 941 SDtfs, 886 SDslu, 57 SDs, 0 SdLazy, 3868 SolverSat, 510 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1255occurred in iteration=8, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 417 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 29 NumberOfFragments, 121 HoareAnnotationTreeSize, 3 FomulaSimplifications, 430 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1817 NumberOfCodeBlocks, 1817 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1807 ConstructedInterpolants, 0 QuantifiedInterpolants, 5516 SizeOfPredicates, 0 NumberOfNonLiveVariables, 212 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 1156/1160 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: 592]: Loop Invariant Derived loop invariant: ((((((a19 <= 9 && a10 == 4) && 14 == a4) && a12 == 0) || (((a19 <= 9 && 14 == a4) && a12 == 0) && 9 <= a19)) || ((a19 <= 6 && 14 == a4) && a12 == 0)) || ((a10 <= 1 && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 14 == a4) && a10 == 2) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((a19 <= 9 && a10 == 4) && 14 == a4) && a12 == 0) || (((a19 <= 9 && 14 == a4) && a12 == 0) && 9 <= a19)) || ((a19 <= 6 && 14 == a4) && a12 == 0)) || ((a10 <= 1 && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 14 == a4) && a10 == 2) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-28 08:36:25,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a975f-58b6-4c45-a95a-564a31c04200/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...