./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/packet_filter.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-data/packet_filter.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d604fdd8f7c4d34db0106d8a0ff422218ae80e9ee6eb03f691b84d2fcc8ad49f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 05:32:36,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 05:32:36,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 05:32:36,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 05:32:36,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 05:32:36,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 05:32:36,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 05:32:36,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 05:32:36,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 05:32:36,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 05:32:36,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 05:32:36,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 05:32:36,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 05:32:36,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 05:32:36,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 05:32:36,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 05:32:36,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 05:32:36,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 05:32:36,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 05:32:36,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 05:32:36,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 05:32:36,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 05:32:36,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 05:32:36,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 05:32:36,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 05:32:36,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 05:32:36,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 05:32:36,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 05:32:36,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 05:32:36,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 05:32:36,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 05:32:36,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 05:32:36,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 05:32:36,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 05:32:36,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 05:32:36,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 05:32:36,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 05:32:36,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 05:32:36,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 05:32:36,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 05:32:36,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 05:32:36,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-21 05:32:36,271 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 05:32:36,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 05:32:36,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 05:32:36,273 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-21 05:32:36,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 05:32:36,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 05:32:36,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 05:32:36,275 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 05:32:36,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 05:32:36,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 05:32:36,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 05:32:36,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 05:32:36,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 05:32:36,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 05:32:36,281 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 05:32:36,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 05:32:36,281 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 05:32:36,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 05:32:36,281 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 05:32:36,282 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 05:32:36,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 05:32:36,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 05:32:36,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 05:32:36,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 05:32:36,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 05:32:36,283 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 05:32:36,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 05:32:36,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 05:32:36,284 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_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d604fdd8f7c4d34db0106d8a0ff422218ae80e9ee6eb03f691b84d2fcc8ad49f [2021-11-21 05:32:36,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 05:32:36,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 05:32:36,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 05:32:36,616 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 05:32:36,617 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 05:32:36,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/heap-data/packet_filter.i [2021-11-21 05:32:36,690 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN/data/bf89eea15/421ba40dd8d3486dbdea84041c87794a/FLAGedcd63ba4 [2021-11-21 05:32:37,266 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 05:32:37,266 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/sv-benchmarks/c/heap-data/packet_filter.i [2021-11-21 05:32:37,280 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN/data/bf89eea15/421ba40dd8d3486dbdea84041c87794a/FLAGedcd63ba4 [2021-11-21 05:32:37,545 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN/data/bf89eea15/421ba40dd8d3486dbdea84041c87794a [2021-11-21 05:32:37,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 05:32:37,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 05:32:37,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 05:32:37,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 05:32:37,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 05:32:37,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:32:37" (1/1) ... [2021-11-21 05:32:37,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a42e15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:32:37, skipping insertion in model container [2021-11-21 05:32:37,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:32:37" (1/1) ... [2021-11-21 05:32:37,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 05:32:37,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 05:32:37,990 WARN L230 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_d91a8d7a-df4f-4fa4-8091-d761acf0010d/sv-benchmarks/c/heap-data/packet_filter.i[23925,23938] [2021-11-21 05:32:38,006 WARN L230 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_d91a8d7a-df4f-4fa4-8091-d761acf0010d/sv-benchmarks/c/heap-data/packet_filter.i[24159,24172] [2021-11-21 05:32:38,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 05:32:38,022 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 05:32:38,071 WARN L230 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_d91a8d7a-df4f-4fa4-8091-d761acf0010d/sv-benchmarks/c/heap-data/packet_filter.i[23925,23938] [2021-11-21 05:32:38,073 WARN L230 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_d91a8d7a-df4f-4fa4-8091-d761acf0010d/sv-benchmarks/c/heap-data/packet_filter.i[24159,24172] [2021-11-21 05:32:38,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 05:32:38,107 INFO L208 MainTranslator]: Completed translation [2021-11-21 05:32:38,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:32:38 WrapperNode [2021-11-21 05:32:38,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 05:32:38,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 05:32:38,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 05:32:38,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 05:32:38,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:32:38" (1/1) ... [2021-11-21 05:32:38,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:32:38" (1/1) ... [2021-11-21 05:32:38,161 INFO L137 Inliner]: procedures = 130, calls = 86, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 160 [2021-11-21 05:32:38,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 05:32:38,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 05:32:38,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 05:32:38,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 05:32:38,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:32:38" (1/1) ... [2021-11-21 05:32:38,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:32:38" (1/1) ... [2021-11-21 05:32:38,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:32:38" (1/1) ... [2021-11-21 05:32:38,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:32:38" (1/1) ... [2021-11-21 05:32:38,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:32:38" (1/1) ... [2021-11-21 05:32:38,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:32:38" (1/1) ... [2021-11-21 05:32:38,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:32:38" (1/1) ... [2021-11-21 05:32:38,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 05:32:38,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 05:32:38,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 05:32:38,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 05:32:38,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:32:38" (1/1) ... [2021-11-21 05:32:38,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 05:32:38,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 05:32:38,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 05:32:38,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91a8d7a-df4f-4fa4-8091-d761acf0010d/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 05:32:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 05:32:38,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 05:32:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 05:32:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 05:32:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_queue [2021-11-21 05:32:38,330 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_queue [2021-11-21 05:32:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 05:32:38,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 05:32:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 05:32:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_charp [2021-11-21 05:32:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure send [2021-11-21 05:32:38,331 INFO L138 BoogieDeclarations]: Found implementation of procedure send [2021-11-21 05:32:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 05:32:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 05:32:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 05:32:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 05:32:38,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 05:32:38,531 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 05:32:38,533 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 05:32:38,859 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 05:32:38,947 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 05:32:38,947 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-21 05:32:38,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:32:38 BoogieIcfgContainer [2021-11-21 05:32:38,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 05:32:38,951 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 05:32:38,951 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 05:32:38,965 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 05:32:38,965 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:32:38" (1/1) ... [2021-11-21 05:32:38,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 05:32:39,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:32:39,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 33 states and 44 transitions. [2021-11-21 05:32:39,031 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2021-11-21 05:32:39,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 05:32:39,034 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:32:39,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:32:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:32:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:32:39,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:32:39,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2021-11-21 05:32:39,209 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2021-11-21 05:32:39,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 05:32:39,214 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:32:39,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:32:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:32:39,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:32:39,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:32:39,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 37 states and 48 transitions. [2021-11-21 05:32:39,395 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2021-11-21 05:32:39,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 05:32:39,396 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:32:39,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:32:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:32:39,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:32:39,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:32:39,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 42 states and 55 transitions. [2021-11-21 05:32:39,787 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2021-11-21 05:32:39,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 05:32:39,789 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:32:39,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:32:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:32:39,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:32:40,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:32:40,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 46 states and 67 transitions. [2021-11-21 05:32:40,221 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 67 transitions. [2021-11-21 05:32:40,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 05:32:40,222 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:32:40,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:32:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:32:40,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:32:40,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:32:40,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 50 states and 80 transitions. [2021-11-21 05:32:40,668 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 80 transitions. [2021-11-21 05:32:40,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-21 05:32:40,669 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:32:40,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:32:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:32:41,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:32:42,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:32:42,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 62 states and 113 transitions. [2021-11-21 05:32:42,877 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 113 transitions. [2021-11-21 05:32:42,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 05:32:42,878 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:32:42,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:32:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:32:43,046 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 05:32:43,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:32:43,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 64 states and 121 transitions. [2021-11-21 05:32:43,624 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 121 transitions. [2021-11-21 05:32:43,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-21 05:32:43,625 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:32:43,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:32:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:32:44,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:32:47,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:32:47,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 73 states and 150 transitions. [2021-11-21 05:32:47,089 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 150 transitions. [2021-11-21 05:32:47,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-21 05:32:47,091 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:32:47,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:32:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:33:24,419 WARN L227 SmtUtils]: Spent 15.22s on a formula simplification that was a NOOP. DAG size: 152 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:33:24,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:33:53,690 WARN L227 SmtUtils]: Spent 20.42s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:34:17,323 WARN L227 SmtUtils]: Spent 15.82s on a formula simplification that was a NOOP. DAG size: 153 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:34:36,947 WARN L227 SmtUtils]: Spent 17.89s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:35:01,462 WARN L227 SmtUtils]: Spent 16.68s on a formula simplification that was a NOOP. DAG size: 174 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:35:20,821 WARN L227 SmtUtils]: Spent 15.95s on a formula simplification that was a NOOP. DAG size: 176 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:35:23,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 05:35:24,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:35:24,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 80 states and 169 transitions. [2021-11-21 05:35:24,313 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 169 transitions. [2021-11-21 05:35:24,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-21 05:35:24,315 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:35:24,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:35:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:35:25,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:35:52,227 WARN L227 SmtUtils]: Spent 21.27s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:36:16,536 WARN L227 SmtUtils]: Spent 18.86s on a formula simplification that was a NOOP. DAG size: 174 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:36:46,487 WARN L227 SmtUtils]: Spent 21.27s on a formula simplification that was a NOOP. DAG size: 176 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:36:48,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 05:37:17,142 WARN L227 SmtUtils]: Spent 20.36s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:37:20,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:37:20,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 80 states and 166 transitions. [2021-11-21 05:37:20,266 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 166 transitions. [2021-11-21 05:37:20,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-21 05:37:20,267 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:37:20,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:37:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:37:20,940 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 05:37:26,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:37:26,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 82 states and 173 transitions. [2021-11-21 05:37:26,585 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 173 transitions. [2021-11-21 05:37:26,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 05:37:26,586 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:37:26,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:37:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:37:26,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:37:29,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:37:29,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 82 states and 169 transitions. [2021-11-21 05:37:29,129 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 169 transitions. [2021-11-21 05:37:29,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 05:37:29,131 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:37:29,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:37:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:37:35,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:38:03,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:38:03,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 96 states and 212 transitions. [2021-11-21 05:38:03,575 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 212 transitions. [2021-11-21 05:38:03,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 05:38:03,577 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:38:03,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:38:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:38:11,052 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:39:42,368 WARN L227 SmtUtils]: Spent 1.18m on a formula simplification. DAG size of input: 208 DAG size of output: 206 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:40:58,230 WARN L227 SmtUtils]: Spent 1.07m on a formula simplification. DAG size of input: 210 DAG size of output: 209 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:41:45,429 WARN L227 SmtUtils]: Spent 29.27s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:42:30,659 WARN L227 SmtUtils]: Spent 30.78s on a formula simplification that was a NOOP. DAG size: 210 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:42:36,128 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 05:42:48,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:48,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 103 states and 240 transitions. [2021-11-21 05:42:48,004 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 240 transitions. [2021-11-21 05:42:48,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 05:42:48,005 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:48,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:50,450 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 05:42:58,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:58,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 105 states and 250 transitions. [2021-11-21 05:42:58,508 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 250 transitions. [2021-11-21 05:42:58,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-21 05:42:58,509 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:58,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:43:06,277 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:43:30,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 05:43:37,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:43:37,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 113 states and 281 transitions. [2021-11-21 05:43:37,624 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 281 transitions. [2021-11-21 05:43:37,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-21 05:43:37,625 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:43:37,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:43:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:44:48,323 WARN L227 SmtUtils]: Spent 23.85s on a formula simplification that was a NOOP. DAG size: 181 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:44:51,066 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:45:31,863 WARN L227 SmtUtils]: Spent 22.51s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 05:45:46,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:45:46,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 117 states and 295 transitions. [2021-11-21 05:45:46,355 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 295 transitions. [2021-11-21 05:45:46,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-21 05:45:46,357 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:45:46,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:45:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:46:10,016 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:46:16,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:46:16,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 120 states and 304 transitions. [2021-11-21 05:46:16,527 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 304 transitions. [2021-11-21 05:46:16,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-21 05:46:16,529 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:46:16,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:46:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:46:34,192 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 05:46:38,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:46:38,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 121 states and 309 transitions. [2021-11-21 05:46:38,222 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 309 transitions. [2021-11-21 05:46:38,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-21 05:46:38,224 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:46:38,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:46:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:46:48,922 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.