./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e02cb01095391f043ac338e051aad38ada321e317716e1cbc4cb781d100f4706 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:30:15,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:30:15,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:30:15,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:30:15,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:30:15,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:30:15,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:30:15,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:30:15,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:30:15,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:30:15,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:30:15,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:30:15,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:30:15,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:30:15,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:30:15,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:30:15,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:30:15,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:30:15,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:30:15,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:30:15,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:30:15,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:30:15,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:30:15,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:30:15,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:30:15,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:30:15,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:30:15,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:30:15,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:30:15,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:30:15,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:30:15,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:30:15,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:30:15,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:30:15,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:30:15,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:30:15,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:30:15,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:30:15,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:30:15,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:30:15,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:30:15,199 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:30:15,254 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:30:15,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:30:15,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:30:15,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:30:15,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:30:15,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:30:15,266 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:30:15,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:30:15,267 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:30:15,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:30:15,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:30:15,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:30:15,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:30:15,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:30:15,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:30:15,270 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:30:15,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:30:15,271 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:30:15,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:30:15,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:30:15,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:30:15,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:30:15,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:30:15,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:30:15,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:30:15,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:30:15,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:30:15,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:30:15,274 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:30:15,274 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:30:15,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:30:15,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:30:15,275 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_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e02cb01095391f043ac338e051aad38ada321e317716e1cbc4cb781d100f4706 [2021-10-21 19:30:15,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:30:15,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:30:15,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:30:15,602 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:30:15,603 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:30:15,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/eca-rers2012/Problem14_label05.c [2021-10-21 19:30:15,680 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/data/c2a093ef7/fb573da8390c4a71b8dcb88c4f0435eb/FLAG38a848817 [2021-10-21 19:30:16,398 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:30:16,399 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/sv-benchmarks/c/eca-rers2012/Problem14_label05.c [2021-10-21 19:30:16,434 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/data/c2a093ef7/fb573da8390c4a71b8dcb88c4f0435eb/FLAG38a848817 [2021-10-21 19:30:16,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/data/c2a093ef7/fb573da8390c4a71b8dcb88c4f0435eb [2021-10-21 19:30:16,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:30:16,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:30:16,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:30:16,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:30:16,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:30:16,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:30:16" (1/1) ... [2021-10-21 19:30:16,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4367d8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:16, skipping insertion in model container [2021-10-21 19:30:16,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:30:16" (1/1) ... [2021-10-21 19:30:16,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:30:16,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:30:17,037 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_cfb5c46e-1663-4d97-b033-5a4ace2420e0/sv-benchmarks/c/eca-rers2012/Problem14_label05.c[6428,6441] [2021-10-21 19:30:17,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:30:17,333 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:30:17,369 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_cfb5c46e-1663-4d97-b033-5a4ace2420e0/sv-benchmarks/c/eca-rers2012/Problem14_label05.c[6428,6441] [2021-10-21 19:30:17,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:30:17,548 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:30:17,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:17 WrapperNode [2021-10-21 19:30:17,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:30:17,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:30:17,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:30:17,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:30:17,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:17" (1/1) ... [2021-10-21 19:30:17,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:17" (1/1) ... [2021-10-21 19:30:17,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:30:17,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:30:17,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:30:17,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:30:17,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:17" (1/1) ... [2021-10-21 19:30:17,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:17" (1/1) ... [2021-10-21 19:30:17,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:17" (1/1) ... [2021-10-21 19:30:17,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:17" (1/1) ... [2021-10-21 19:30:17,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:17" (1/1) ... [2021-10-21 19:30:17,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:17" (1/1) ... [2021-10-21 19:30:17,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:17" (1/1) ... [2021-10-21 19:30:17,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:30:17,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:30:17,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:30:17,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:30:17,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:17" (1/1) ... [2021-10-21 19:30:17,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:30:17,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:30:17,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:30:17,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:30:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:30:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:30:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:30:17,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:30:19,614 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:30:19,615 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:30:19,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:30:19 BoogieIcfgContainer [2021-10-21 19:30:19,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:30:19,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:30:19,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:30:19,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:30:19,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:30:16" (1/3) ... [2021-10-21 19:30:19,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de6ca25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:30:19, skipping insertion in model container [2021-10-21 19:30:19,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:30:17" (2/3) ... [2021-10-21 19:30:19,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de6ca25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:30:19, skipping insertion in model container [2021-10-21 19:30:19,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:30:19" (3/3) ... [2021-10-21 19:30:19,629 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label05.c [2021-10-21 19:30:19,636 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:30:19,636 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:30:19,707 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:30:19,716 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:30:19,717 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:30:19,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:19,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-21 19:30:19,763 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:19,764 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:19,764 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:30:19,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:19,769 INFO L82 PathProgramCache]: Analyzing trace with hash -696204111, now seen corresponding path program 1 times [2021-10-21 19:30:19,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:30:19,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226407169] [2021-10-21 19:30:19,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:19,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:30:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:20,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:30:20,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:30:20,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226407169] [2021-10-21 19:30:20,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226407169] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:20,141 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:30:20,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:30:20,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248490778] [2021-10-21 19:30:20,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:30:20,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:30:20,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:30:20,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:30:20,185 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:21,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:21,365 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2021-10-21 19:30:21,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:30:21,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-10-21 19:30:21,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:21,383 INFO L225 Difference]: With dead ends: 685 [2021-10-21 19:30:21,383 INFO L226 Difference]: Without dead ends: 360 [2021-10-21 19:30:21,387 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:30:21,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-10-21 19:30:21,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-10-21 19:30:21,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.4206128133704736) internal successors, (510), 359 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:21,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2021-10-21 19:30:21,457 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 63 [2021-10-21 19:30:21,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:21,459 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2021-10-21 19:30:21,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:21,459 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2021-10-21 19:30:21,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-10-21 19:30:21,469 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:21,469 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:21,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:30:21,470 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:30:21,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:21,470 INFO L82 PathProgramCache]: Analyzing trace with hash -18617793, now seen corresponding path program 1 times [2021-10-21 19:30:21,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:30:21,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593059083] [2021-10-21 19:30:21,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:21,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:30:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:21,661 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:30:21,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:30:21,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593059083] [2021-10-21 19:30:21,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593059083] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:21,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:30:21,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:30:21,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322361616] [2021-10-21 19:30:21,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:30:21,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:30:21,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:30:21,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:30:21,666 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:22,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:22,807 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2021-10-21 19:30:22,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:30:22,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2021-10-21 19:30:22,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:22,813 INFO L225 Difference]: With dead ends: 1074 [2021-10-21 19:30:22,813 INFO L226 Difference]: Without dead ends: 716 [2021-10-21 19:30:22,815 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:22,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-10-21 19:30:22,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-10-21 19:30:22,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.2615384615384615) internal successors, (902), 715 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:22,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2021-10-21 19:30:22,874 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 142 [2021-10-21 19:30:22,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:22,875 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2021-10-21 19:30:22,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:22,876 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2021-10-21 19:30:22,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-10-21 19:30:22,879 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:22,880 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:22,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:30:22,880 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:30:22,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:22,881 INFO L82 PathProgramCache]: Analyzing trace with hash -372992288, now seen corresponding path program 1 times [2021-10-21 19:30:22,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:30:22,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858874411] [2021-10-21 19:30:22,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:22,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:30:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:23,073 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-21 19:30:23,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:30:23,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858874411] [2021-10-21 19:30:23,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858874411] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:30:23,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216852385] [2021-10-21 19:30:23,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:23,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:30:23,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:30:23,078 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:30:23,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:30:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:23,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:30:23,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:30:23,936 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-21 19:30:23,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216852385] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:23,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:30:23,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-21 19:30:23,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051466738] [2021-10-21 19:30:23,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:30:23,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:30:23,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:30:23,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:23,943 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:24,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:24,700 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2021-10-21 19:30:24,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:30:24,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 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 168 [2021-10-21 19:30:24,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:24,712 INFO L225 Difference]: With dead ends: 1252 [2021-10-21 19:30:24,713 INFO L226 Difference]: Without dead ends: 1250 [2021-10-21 19:30:24,714 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.3ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:24,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-10-21 19:30:24,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2021-10-21 19:30:24,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3370660694288914) internal successors, (1194), 893 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:24,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2021-10-21 19:30:24,749 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 168 [2021-10-21 19:30:24,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:24,751 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2021-10-21 19:30:24,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:24,752 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2021-10-21 19:30:24,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-10-21 19:30:24,761 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:24,761 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 19:30:24,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:30:24,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:30:24,962 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:30:24,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:24,963 INFO L82 PathProgramCache]: Analyzing trace with hash 2076306956, now seen corresponding path program 1 times [2021-10-21 19:30:24,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:30:24,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305716958] [2021-10-21 19:30:24,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:24,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:30:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:25,170 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-10-21 19:30:25,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:30:25,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305716958] [2021-10-21 19:30:25,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305716958] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:25,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:30:25,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:30:25,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192162420] [2021-10-21 19:30:25,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:30:25,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:30:25,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:30:25,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:30:25,174 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:26,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:26,103 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2021-10-21 19:30:26,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:30:26,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2021-10-21 19:30:26,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:26,110 INFO L225 Difference]: With dead ends: 1993 [2021-10-21 19:30:26,110 INFO L226 Difference]: Without dead ends: 1072 [2021-10-21 19:30:26,112 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:30:26,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-10-21 19:30:26,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2021-10-21 19:30:26,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:26,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2021-10-21 19:30:26,146 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 222 [2021-10-21 19:30:26,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:26,147 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2021-10-21 19:30:26,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:26,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2021-10-21 19:30:26,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-10-21 19:30:26,151 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:26,152 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-21 19:30:26,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:30:26,152 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:30:26,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:26,153 INFO L82 PathProgramCache]: Analyzing trace with hash 255971856, now seen corresponding path program 1 times [2021-10-21 19:30:26,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:30:26,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410788203] [2021-10-21 19:30:26,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:26,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:30:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:26,313 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 121 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:30:26,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:30:26,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410788203] [2021-10-21 19:30:26,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410788203] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:30:26,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512872992] [2021-10-21 19:30:26,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:26,315 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:30:26,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:30:26,316 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:30:26,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 19:30:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:26,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:30:26,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:30:27,308 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-21 19:30:27,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512872992] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:27,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:30:27,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-21 19:30:27,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955925777] [2021-10-21 19:30:27,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:30:27,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:30:27,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:30:27,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:30:27,314 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:28,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:28,045 INFO L93 Difference]: Finished difference Result 2498 states and 3033 transitions. [2021-10-21 19:30:28,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:30:28,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 234 [2021-10-21 19:30:28,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:28,054 INFO L225 Difference]: With dead ends: 2498 [2021-10-21 19:30:28,054 INFO L226 Difference]: Without dead ends: 1428 [2021-10-21 19:30:28,056 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 22.6ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:30:28,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2021-10-21 19:30:28,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1072. [2021-10-21 19:30:28,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:28,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2021-10-21 19:30:28,088 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 234 [2021-10-21 19:30:28,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:28,089 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2021-10-21 19:30:28,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:28,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2021-10-21 19:30:28,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-10-21 19:30:28,093 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:28,093 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:28,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:30:28,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:30:28,313 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:30:28,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:28,314 INFO L82 PathProgramCache]: Analyzing trace with hash 184456183, now seen corresponding path program 1 times [2021-10-21 19:30:28,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:30:28,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931967699] [2021-10-21 19:30:28,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:28,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:30:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:28,430 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:30:28,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:30:28,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931967699] [2021-10-21 19:30:28,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931967699] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:28,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:30:28,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:30:28,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054266423] [2021-10-21 19:30:28,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:30:28,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:30:28,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:30:28,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:30:28,433 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:29,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:29,224 INFO L93 Difference]: Finished difference Result 2676 states and 3213 transitions. [2021-10-21 19:30:29,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:30:29,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2021-10-21 19:30:29,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:29,240 INFO L225 Difference]: With dead ends: 2676 [2021-10-21 19:30:29,240 INFO L226 Difference]: Without dead ends: 1606 [2021-10-21 19:30:29,242 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:30:29,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-10-21 19:30:29,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2021-10-21 19:30:29,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1576323987538941) internal successors, (1858), 1605 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:29,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1858 transitions. [2021-10-21 19:30:29,301 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1858 transitions. Word has length 237 [2021-10-21 19:30:29,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:29,302 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1858 transitions. [2021-10-21 19:30:29,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:29,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1858 transitions. [2021-10-21 19:30:29,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-10-21 19:30:29,312 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:29,312 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:29,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 19:30:29,313 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:30:29,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:29,314 INFO L82 PathProgramCache]: Analyzing trace with hash -729807516, now seen corresponding path program 1 times [2021-10-21 19:30:29,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:30:29,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194408959] [2021-10-21 19:30:29,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:29,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:30:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:29,565 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 237 proven. 130 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-10-21 19:30:29,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:30:29,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194408959] [2021-10-21 19:30:29,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194408959] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:30:29,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949443994] [2021-10-21 19:30:29,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:29,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:30:29,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:30:29,569 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:30:29,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 19:30:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:29,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:30:29,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:30:30,843 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2021-10-21 19:30:30,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949443994] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:30,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:30:30,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-21 19:30:30,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964823517] [2021-10-21 19:30:30,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:30:30,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:30:30,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:30:30,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:30:30,847 INFO L87 Difference]: Start difference. First operand 1606 states and 1858 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:31,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:31,492 INFO L93 Difference]: Finished difference Result 3566 states and 4204 transitions. [2021-10-21 19:30:31,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:30:31,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356 [2021-10-21 19:30:31,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:31,504 INFO L225 Difference]: With dead ends: 3566 [2021-10-21 19:30:31,504 INFO L226 Difference]: Without dead ends: 2140 [2021-10-21 19:30:31,507 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.3ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:30:31,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-10-21 19:30:31,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2021-10-21 19:30:31,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1330953595104538) internal successors, (2222), 1961 states have internal predecessors, (2222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:31,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2222 transitions. [2021-10-21 19:30:31,588 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2222 transitions. Word has length 356 [2021-10-21 19:30:31,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:31,589 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2222 transitions. [2021-10-21 19:30:31,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:31,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2222 transitions. [2021-10-21 19:30:31,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2021-10-21 19:30:31,600 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:31,600 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 19:30:31,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:30:31,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:30:31,829 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:30:31,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:31,830 INFO L82 PathProgramCache]: Analyzing trace with hash -433973679, now seen corresponding path program 1 times [2021-10-21 19:30:31,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:30:31,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506698682] [2021-10-21 19:30:31,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:31,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:30:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:32,030 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 447 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2021-10-21 19:30:32,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:30:32,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506698682] [2021-10-21 19:30:32,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506698682] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:32,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:30:32,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:30:32,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126621780] [2021-10-21 19:30:32,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:30:32,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:30:32,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:30:32,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:30:32,037 INFO L87 Difference]: Start difference. First operand 1962 states and 2222 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:32,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:32,861 INFO L93 Difference]: Finished difference Result 3951 states and 4494 transitions. [2021-10-21 19:30:32,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:30:32,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 433 [2021-10-21 19:30:32,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:32,875 INFO L225 Difference]: With dead ends: 3951 [2021-10-21 19:30:32,877 INFO L226 Difference]: Without dead ends: 2140 [2021-10-21 19:30:32,882 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:30:32,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-10-21 19:30:32,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2021-10-21 19:30:32,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.084140744518103) internal successors, (2126), 1961 states have internal predecessors, (2126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:32,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2126 transitions. [2021-10-21 19:30:32,935 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2126 transitions. Word has length 433 [2021-10-21 19:30:32,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:32,937 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2126 transitions. [2021-10-21 19:30:32,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:32,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2126 transitions. [2021-10-21 19:30:32,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2021-10-21 19:30:32,944 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:32,945 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:32,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 19:30:32,945 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:30:32,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:32,946 INFO L82 PathProgramCache]: Analyzing trace with hash 187710206, now seen corresponding path program 1 times [2021-10-21 19:30:32,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:30:32,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057915596] [2021-10-21 19:30:32,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:32,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:30:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 449 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-21 19:30:33,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:30:33,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057915596] [2021-10-21 19:30:33,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057915596] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:33,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:30:33,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:30:33,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523442075] [2021-10-21 19:30:33,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:30:33,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:30:33,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:30:33,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:30:33,151 INFO L87 Difference]: Start difference. First operand 1962 states and 2126 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:33,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:33,793 INFO L93 Difference]: Finished difference Result 4456 states and 4894 transitions. [2021-10-21 19:30:33,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:30:33,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 456 [2021-10-21 19:30:33,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:33,810 INFO L225 Difference]: With dead ends: 4456 [2021-10-21 19:30:33,810 INFO L226 Difference]: Without dead ends: 2674 [2021-10-21 19:30:33,813 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:30:33,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-10-21 19:30:33,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2021-10-21 19:30:33,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.08791619902731) internal successors, (2908), 2673 states have internal predecessors, (2908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:33,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2908 transitions. [2021-10-21 19:30:33,891 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2908 transitions. Word has length 456 [2021-10-21 19:30:33,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:33,893 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2908 transitions. [2021-10-21 19:30:33,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:33,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2908 transitions. [2021-10-21 19:30:33,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2021-10-21 19:30:33,899 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:33,900 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:33,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-21 19:30:33,901 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:30:33,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:33,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1528734807, now seen corresponding path program 1 times [2021-10-21 19:30:33,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:30:33,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560482887] [2021-10-21 19:30:33,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:33,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:30:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:34,093 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 563 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-21 19:30:34,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:30:34,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560482887] [2021-10-21 19:30:34,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560482887] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:34,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:30:34,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:30:34,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53857956] [2021-10-21 19:30:34,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:30:34,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:30:34,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:30:34,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:30:34,097 INFO L87 Difference]: Start difference. First operand 2674 states and 2908 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:34,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:34,724 INFO L93 Difference]: Finished difference Result 6236 states and 6878 transitions. [2021-10-21 19:30:34,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:30:34,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 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 497 [2021-10-21 19:30:34,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:34,745 INFO L225 Difference]: With dead ends: 6236 [2021-10-21 19:30:34,745 INFO L226 Difference]: Without dead ends: 3742 [2021-10-21 19:30:34,748 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:30:34,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-10-21 19:30:34,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2021-10-21 19:30:34,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.083400160384924) internal successors, (4053), 3741 states have internal predecessors, (4053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:34,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4053 transitions. [2021-10-21 19:30:34,846 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4053 transitions. Word has length 497 [2021-10-21 19:30:34,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:34,847 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4053 transitions. [2021-10-21 19:30:34,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:34,848 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4053 transitions. [2021-10-21 19:30:34,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2021-10-21 19:30:34,853 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:34,853 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:34,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-21 19:30:34,854 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:30:34,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:34,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1139877765, now seen corresponding path program 1 times [2021-10-21 19:30:34,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:30:34,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663988475] [2021-10-21 19:30:34,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:34,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:30:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 740 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-10-21 19:30:35,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:30:35,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663988475] [2021-10-21 19:30:35,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663988475] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:35,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:30:35,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:30:35,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874337309] [2021-10-21 19:30:35,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:30:35,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:30:35,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:30:35,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:30:35,094 INFO L87 Difference]: Start difference. First operand 3742 states and 4053 transitions. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:35,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:35,641 INFO L93 Difference]: Finished difference Result 7304 states and 7925 transitions. [2021-10-21 19:30:35,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:30:35,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 533 [2021-10-21 19:30:35,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:35,662 INFO L225 Difference]: With dead ends: 7304 [2021-10-21 19:30:35,662 INFO L226 Difference]: Without dead ends: 3742 [2021-10-21 19:30:35,666 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:30:35,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-10-21 19:30:35,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3208. [2021-10-21 19:30:35,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0792017461802308) internal successors, (3461), 3207 states have internal predecessors, (3461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:35,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3461 transitions. [2021-10-21 19:30:35,747 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3461 transitions. Word has length 533 [2021-10-21 19:30:35,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:35,748 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3461 transitions. [2021-10-21 19:30:35,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:35,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3461 transitions. [2021-10-21 19:30:35,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 653 [2021-10-21 19:30:35,755 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:35,755 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2021-10-21 19:30:35,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-21 19:30:35,756 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:30:35,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:35,756 INFO L82 PathProgramCache]: Analyzing trace with hash -576929197, now seen corresponding path program 1 times [2021-10-21 19:30:35,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:30:35,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913136354] [2021-10-21 19:30:35,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:35,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:30:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:36,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1371 backedges. 947 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-21 19:30:36,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:30:36,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913136354] [2021-10-21 19:30:36,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913136354] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:30:36,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226061601] [2021-10-21 19:30:36,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:36,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:30:36,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:30:36,069 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:30:36,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 19:30:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:36,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:30:36,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:30:37,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1371 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2021-10-21 19:30:37,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226061601] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:37,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:30:37,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 19:30:37,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662973362] [2021-10-21 19:30:37,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:30:37,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:30:37,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:30:37,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:37,982 INFO L87 Difference]: Start difference. First operand 3208 states and 3461 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:38,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:38,567 INFO L93 Difference]: Finished difference Result 7304 states and 7920 transitions. [2021-10-21 19:30:38,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:30:38,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 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 652 [2021-10-21 19:30:38,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:38,594 INFO L225 Difference]: With dead ends: 7304 [2021-10-21 19:30:38,594 INFO L226 Difference]: Without dead ends: 4276 [2021-10-21 19:30:38,600 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 652 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:38,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-10-21 19:30:38,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2021-10-21 19:30:38,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.072247986331462) internal successors, (4393), 4097 states have internal predecessors, (4393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:38,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4393 transitions. [2021-10-21 19:30:38,708 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4393 transitions. Word has length 652 [2021-10-21 19:30:38,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:38,709 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4393 transitions. [2021-10-21 19:30:38,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:38,710 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4393 transitions. [2021-10-21 19:30:38,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2021-10-21 19:30:38,717 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:38,718 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:38,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:30:38,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-21 19:30:38,938 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:30:38,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:38,939 INFO L82 PathProgramCache]: Analyzing trace with hash -702757795, now seen corresponding path program 1 times [2021-10-21 19:30:38,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:30:38,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287658645] [2021-10-21 19:30:38,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:38,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:30:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:39,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1826 backedges. 1341 proven. 110 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2021-10-21 19:30:39,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:30:39,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287658645] [2021-10-21 19:30:39,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287658645] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:30:39,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350677184] [2021-10-21 19:30:39,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:39,278 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:30:39,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:30:39,279 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:30:39,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 19:30:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:39,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:30:39,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:30:41,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1826 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 1461 trivial. 0 not checked. [2021-10-21 19:30:41,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350677184] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:41,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:30:41,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 19:30:41,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831490181] [2021-10-21 19:30:41,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:30:41,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:30:41,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:30:41,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:41,497 INFO L87 Difference]: Start difference. First operand 4098 states and 4393 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:41,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:41,981 INFO L93 Difference]: Finished difference Result 4990 states and 5332 transitions. [2021-10-21 19:30:41,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:30:41,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 731 [2021-10-21 19:30:41,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:42,005 INFO L225 Difference]: With dead ends: 4990 [2021-10-21 19:30:42,006 INFO L226 Difference]: Without dead ends: 4988 [2021-10-21 19:30:42,008 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 731 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:42,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-10-21 19:30:42,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4098. [2021-10-21 19:30:42,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0720039052965584) internal successors, (4392), 4097 states have internal predecessors, (4392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:42,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4392 transitions. [2021-10-21 19:30:42,143 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4392 transitions. Word has length 731 [2021-10-21 19:30:42,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:42,144 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4392 transitions. [2021-10-21 19:30:42,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:42,145 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4392 transitions. [2021-10-21 19:30:42,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2021-10-21 19:30:42,170 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:42,171 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:42,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:30:42,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-21 19:30:42,372 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:30:42,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:42,373 INFO L82 PathProgramCache]: Analyzing trace with hash -154582035, now seen corresponding path program 1 times [2021-10-21 19:30:42,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:30:42,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758141420] [2021-10-21 19:30:42,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:42,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:30:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:42,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 1424 proven. 155 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2021-10-21 19:30:42,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:30:42,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758141420] [2021-10-21 19:30:42,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758141420] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:30:42,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543441392] [2021-10-21 19:30:42,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:42,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:30:42,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:30:42,740 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:30:42,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-21 19:30:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:43,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:30:43,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:30:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 1589 trivial. 0 not checked. [2021-10-21 19:30:45,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543441392] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:45,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:30:45,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 19:30:45,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657124] [2021-10-21 19:30:45,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:30:45,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:30:45,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:30:45,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:45,329 INFO L87 Difference]: Start difference. First operand 4098 states and 4392 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:45,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:45,967 INFO L93 Difference]: Finished difference Result 8372 states and 9040 transitions. [2021-10-21 19:30:45,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:30:45,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 812 [2021-10-21 19:30:45,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:45,995 INFO L225 Difference]: With dead ends: 8372 [2021-10-21 19:30:45,998 INFO L226 Difference]: Without dead ends: 4454 [2021-10-21 19:30:46,003 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 812 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:46,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2021-10-21 19:30:46,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4098. [2021-10-21 19:30:46,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0727361484012692) internal successors, (4395), 4097 states have internal predecessors, (4395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:46,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4395 transitions. [2021-10-21 19:30:46,085 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4395 transitions. Word has length 812 [2021-10-21 19:30:46,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:46,086 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4395 transitions. [2021-10-21 19:30:46,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:46,087 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4395 transitions. [2021-10-21 19:30:46,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2021-10-21 19:30:46,099 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:30:46,100 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:30:46,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:30:46,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-21 19:30:46,317 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:30:46,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:30:46,318 INFO L82 PathProgramCache]: Analyzing trace with hash -586808872, now seen corresponding path program 1 times [2021-10-21 19:30:46,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:30:46,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184385309] [2021-10-21 19:30:46,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:46,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:30:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:46,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2053 backedges. 1523 proven. 155 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2021-10-21 19:30:46,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:30:46,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184385309] [2021-10-21 19:30:46,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184385309] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:30:46,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989308433] [2021-10-21 19:30:46,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:30:46,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:30:46,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:30:46,776 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:30:46,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-21 19:30:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:30:48,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:30:48,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:30:49,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2053 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 1688 trivial. 0 not checked. [2021-10-21 19:30:49,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989308433] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:30:49,944 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:30:49,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-21 19:30:49,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145082525] [2021-10-21 19:30:49,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:30:49,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:30:49,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:30:49,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:49,946 INFO L87 Difference]: Start difference. First operand 4098 states and 4395 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:50,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:30:50,533 INFO L93 Difference]: Finished difference Result 8904 states and 9552 transitions. [2021-10-21 19:30:50,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:30:50,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 842 [2021-10-21 19:30:50,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:30:50,535 INFO L225 Difference]: With dead ends: 8904 [2021-10-21 19:30:50,535 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:30:50,544 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 842 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.8ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:30:50,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:30:50,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:30:50,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:50,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:30:50,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 842 [2021-10-21 19:30:50,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:30:50,546 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:30:50,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:30:50,547 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:30:50,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:30:50,550 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:30:50,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:30:50,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-21 19:30:50,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:30:50,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:30:50,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:30:50,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:30:51,221 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-21 19:30:51,221 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-21 19:30:51,221 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-21 19:30:51,221 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-21 19:30:51,221 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-21 19:30:51,221 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,221 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,221 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,222 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-21 19:30:51,222 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-21 19:30:51,222 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-21 19:30:51,222 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-21 19:30:51,222 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-21 19:30:51,222 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-21 19:30:51,222 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-21 19:30:51,222 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-21 19:30:51,222 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,222 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,223 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,223 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-21 19:30:51,223 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-21 19:30:51,223 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-21 19:30:51,223 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-21 19:30:51,223 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-21 19:30:51,223 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-21 19:30:51,223 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-21 19:30:51,223 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-21 19:30:51,223 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-21 19:30:51,224 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,224 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,224 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,224 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-21 19:30:51,224 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-21 19:30:51,224 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-21 19:30:51,224 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-21 19:30:51,224 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-21 19:30:51,224 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-21 19:30:51,224 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-21 19:30:51,225 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,225 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,225 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,225 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-21 19:30:51,225 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-21 19:30:51,225 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-21 19:30:51,225 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-21 19:30:51,225 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-21 19:30:51,225 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-21 19:30:51,226 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-21 19:30:51,226 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-21 19:30:51,226 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,226 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,226 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,226 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-21 19:30:51,226 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-21 19:30:51,226 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-21 19:30:51,226 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-21 19:30:51,227 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-21 19:30:51,227 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-21 19:30:51,227 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-21 19:30:51,227 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-21 19:30:51,227 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,227 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,228 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,228 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-21 19:30:51,228 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-21 19:30:51,228 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-21 19:30:51,228 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-21 19:30:51,228 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-21 19:30:51,229 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-21 19:30:51,229 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-21 19:30:51,229 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-21 19:30:51,229 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-21 19:30:51,229 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,229 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,230 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,230 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-21 19:30:51,230 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-21 19:30:51,230 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-21 19:30:51,230 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-21 19:30:51,230 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-21 19:30:51,231 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-21 19:30:51,231 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-21 19:30:51,231 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:30:51,231 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,231 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,231 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,232 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-21 19:30:51,232 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-21 19:30:51,232 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-21 19:30:51,232 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-21 19:30:51,232 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-21 19:30:51,232 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-21 19:30:51,233 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-21 19:30:51,233 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-21 19:30:51,233 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-21 19:30:51,233 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,233 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,233 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,234 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-21 19:30:51,234 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-21 19:30:51,234 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-21 19:30:51,234 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-21 19:30:51,234 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-21 19:30:51,234 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-21 19:30:51,235 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-21 19:30:51,235 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-21 19:30:51,235 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,235 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,235 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,235 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-21 19:30:51,236 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-21 19:30:51,236 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-21 19:30:51,236 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:30:51,236 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-21 19:30:51,236 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 203) no Hoare annotation was computed. [2021-10-21 19:30:51,237 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-21 19:30:51,237 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-21 19:30:51,237 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-21 19:30:51,237 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-21 19:30:51,237 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,237 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,238 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,238 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-21 19:30:51,238 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-21 19:30:51,238 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-21 19:30:51,238 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-21 19:30:51,238 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-21 19:30:51,239 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-21 19:30:51,239 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-21 19:30:51,239 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-21 19:30:51,239 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,239 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,239 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,240 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-21 19:30:51,240 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-21 19:30:51,240 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-21 19:30:51,240 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-21 19:30:51,240 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-21 19:30:51,240 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-21 19:30:51,241 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-21 19:30:51,241 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-21 19:30:51,241 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,241 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,241 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,241 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-21 19:30:51,242 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-21 19:30:51,242 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-21 19:30:51,242 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-21 19:30:51,242 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-21 19:30:51,242 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-21 19:30:51,242 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-21 19:30:51,243 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-21 19:30:51,243 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,243 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,243 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,243 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-21 19:30:51,244 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-21 19:30:51,244 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-21 19:30:51,244 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-21 19:30:51,244 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-21 19:30:51,244 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-21 19:30:51,245 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-21 19:30:51,245 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-21 19:30:51,245 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,245 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,245 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,245 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-21 19:30:51,245 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-21 19:30:51,246 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-21 19:30:51,246 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-21 19:30:51,246 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-21 19:30:51,246 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-21 19:30:51,246 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-21 19:30:51,246 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-21 19:30:51,247 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,247 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,247 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-21 19:30:51,247 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-21 19:30:51,247 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-21 19:30:51,247 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-21 19:30:51,248 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-21 19:30:51,248 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-21 19:30:51,248 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-21 19:30:51,248 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-21 19:30:51,248 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,248 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,249 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-21 19:30:51,249 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:30:51,249 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-21 19:30:51,249 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-21 19:30:51,249 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-21 19:30:51,249 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-21 19:30:51,250 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-21 19:30:51,250 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,250 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,250 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse5 (+ ~a12~0 43))) (let ((.cse0 (<= 6 ~a15~0)) (.cse3 (= ~a24~0 1)) (.cse1 (<= .cse5 0)) (.cse2 (<= ~a15~0 8)) (.cse4 (<= ~a21~0 6))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3) (and .cse3 (< 11 ~a12~0)) (and .cse3 (<= (+ 49 ~a12~0) 0)) (and .cse3 .cse4) (and .cse3 (<= 10 ~a21~0) (< 0 .cse5)) (and .cse1 .cse2 .cse4)))) [2021-10-21 19:30:51,251 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-21 19:30:51,251 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-21 19:30:51,251 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-21 19:30:51,251 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-21 19:30:51,251 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-21 19:30:51,251 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-21 19:30:51,252 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-21 19:30:51,252 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-21 19:30:51,252 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,252 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,252 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-21 19:30:51,253 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-21 19:30:51,253 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-21 19:30:51,253 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-21 19:30:51,253 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-21 19:30:51,253 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-21 19:30:51,253 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-21 19:30:51,254 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-21 19:30:51,254 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,254 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,254 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:30:51,254 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-21 19:30:51,254 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-21 19:30:51,255 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-21 19:30:51,255 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-21 19:30:51,255 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-21 19:30:51,255 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-21 19:30:51,255 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,255 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,256 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-21 19:30:51,256 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,256 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-21 19:30:51,256 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse5 (+ ~a12~0 43))) (let ((.cse0 (<= 6 ~a15~0)) (.cse3 (= ~a24~0 1)) (.cse1 (<= .cse5 0)) (.cse2 (<= ~a15~0 8)) (.cse4 (<= ~a21~0 6))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3) (and .cse3 (< 11 ~a12~0)) (and .cse3 (<= (+ 49 ~a12~0) 0)) (and .cse3 .cse4) (and .cse3 (<= 10 ~a21~0) (< 0 .cse5)) (and .cse1 .cse2 .cse4)))) [2021-10-21 19:30:51,256 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-21 19:30:51,257 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-21 19:30:51,257 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-21 19:30:51,257 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-21 19:30:51,257 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-21 19:30:51,257 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-21 19:30:51,257 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-21 19:30:51,258 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-21 19:30:51,258 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-21 19:30:51,258 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,258 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,258 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-21 19:30:51,258 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-21 19:30:51,258 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-21 19:30:51,259 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-21 19:30:51,259 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-21 19:30:51,264 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:30:51,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:30:51 BoogieIcfgContainer [2021-10-21 19:30:51,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:30:51,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:30:51,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:30:51,285 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:30:51,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:30:19" (3/4) ... [2021-10-21 19:30:51,290 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:30:51,333 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-21 19:30:51,335 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 19:30:51,337 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:30:51,339 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:30:51,538 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:30:51,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:30:51,540 INFO L168 Benchmark]: Toolchain (without parser) took 34897.88 ms. Allocated memory was 104.9 MB in the beginning and 406.8 MB in the end (delta: 302.0 MB). Free memory was 75.2 MB in the beginning and 160.4 MB in the end (delta: -85.2 MB). Peak memory consumption was 217.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:51,541 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 104.9 MB. Free memory is still 60.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:30:51,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 906.80 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 75.2 MB in the beginning and 82.1 MB in the end (delta: -6.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:51,542 INFO L168 Benchmark]: Boogie Procedure Inliner took 158.48 ms. Allocated memory is still 127.9 MB. Free memory was 82.1 MB in the beginning and 72.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:51,543 INFO L168 Benchmark]: Boogie Preprocessor took 122.02 ms. Allocated memory is still 127.9 MB. Free memory was 72.7 MB in the beginning and 66.8 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:51,543 INFO L168 Benchmark]: RCFGBuilder took 1785.37 ms. Allocated memory is still 127.9 MB. Free memory was 66.8 MB in the beginning and 84.7 MB in the end (delta: -17.9 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:51,544 INFO L168 Benchmark]: TraceAbstraction took 31664.02 ms. Allocated memory was 127.9 MB in the beginning and 406.8 MB in the end (delta: 278.9 MB). Free memory was 84.7 MB in the beginning and 179.3 MB in the end (delta: -94.6 MB). Peak memory consumption was 184.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:51,545 INFO L168 Benchmark]: Witness Printer took 253.46 ms. Allocated memory is still 406.8 MB. Free memory was 179.3 MB in the beginning and 160.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:30:51,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 104.9 MB. Free memory is still 60.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 906.80 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 75.2 MB in the beginning and 82.1 MB in the end (delta: -6.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 158.48 ms. Allocated memory is still 127.9 MB. Free memory was 82.1 MB in the beginning and 72.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 122.02 ms. Allocated memory is still 127.9 MB. Free memory was 72.7 MB in the beginning and 66.8 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1785.37 ms. Allocated memory is still 127.9 MB. Free memory was 66.8 MB in the beginning and 84.7 MB in the end (delta: -17.9 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 31664.02 ms. Allocated memory was 127.9 MB in the beginning and 406.8 MB in the end (delta: 278.9 MB). Free memory was 84.7 MB in the beginning and 179.3 MB in the end (delta: -94.6 MB). Peak memory consumption was 184.2 MB. Max. memory is 16.1 GB. * Witness Printer took 253.46 ms. Allocated memory is still 406.8 MB. Free memory was 179.3 MB in the beginning and 160.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 203]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 31558.4ms, OverallIterations: 15, TraceHistogramMax: 7, EmptinessCheckTime: 139.5ms, AutomataDifference: 11443.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 443.1ms, InitialAbstractionConstructionTime: 21.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1777 SDtfs, 2021 SDslu, 77 SDs, 0 SdLazy, 7722 SolverSat, 966 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8175.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3839 GetRequests, 3804 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4098occurred in iteration=12, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 988.8ms AutomataMinimizationTime, 15 MinimizatonAttempts, 3026 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 65 NumberOfFragments, 135 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2526 FormulaSimplificationTreeSizeReduction, 116.5ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 448 FormulaSimplificationTreeSizeReductionInter, 318.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 463.0ms SsaConstructionTime, 1674.6ms SatisfiabilityAnalysisTime, 11312.5ms InterpolantComputationTime, 10173 NumberOfCodeBlocks, 10173 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 10151 ConstructedInterpolants, 0 QuantifiedInterpolants, 23463 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4928 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 22 InterpolantComputations, 15 PerfectInterpolantSequences, 18976/19751 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((6 <= a15 && a12 + 43 <= 0) && a15 <= 8) || (6 <= a15 && a24 == 1)) || (a24 == 1 && 11 < a12)) || (a24 == 1 && 49 + a12 <= 0)) || (a24 == 1 && a21 <= 6)) || ((a24 == 1 && 10 <= a21) && 0 < a12 + 43)) || ((a12 + 43 <= 0 && a15 <= 8) && a21 <= 6) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((6 <= a15 && a12 + 43 <= 0) && a15 <= 8) || (6 <= a15 && a24 == 1)) || (a24 == 1 && 11 < a12)) || (a24 == 1 && 49 + a12 <= 0)) || (a24 == 1 && a21 <= 6)) || ((a24 == 1 && 10 <= a21) && 0 < a12 + 43)) || ((a12 + 43 <= 0 && a15 <= 8) && a21 <= 6) RESULT: Ultimate proved your program to be correct! [2021-10-21 19:30:51,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb5c46e-1663-4d97-b033-5a4ace2420e0/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...