./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ --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 cea4cc3548129351800c62333a8b3afa818cc0cede5b8fec1c7e8b8079e480c6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:51:12,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:51:12,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:51:12,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:51:12,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:51:12,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:51:12,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:51:12,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:51:12,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:51:12,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:51:12,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:51:12,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:51:12,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:51:12,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:51:12,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:51:12,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:51:12,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:51:12,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:51:12,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:51:12,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:51:12,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:51:12,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:51:12,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:51:12,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:51:12,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:51:12,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:51:12,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:51:12,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:51:12,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:51:12,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:51:12,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:51:12,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:51:12,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:51:12,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:51:12,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:51:12,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:51:12,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:51:12,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:51:12,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:51:12,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:51:12,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:51:12,213 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:51:12,260 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:51:12,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:51:12,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:51:12,262 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:51:12,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:51:12,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:51:12,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:51:12,263 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:51:12,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:51:12,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:51:12,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:51:12,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:51:12,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:51:12,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:51:12,266 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:51:12,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:51:12,266 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:51:12,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:51:12,267 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:51:12,267 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:51:12,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:51:12,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:51:12,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:51:12,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:51:12,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:51:12,269 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:51:12,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:51:12,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:51:12,269 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_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cea4cc3548129351800c62333a8b3afa818cc0cede5b8fec1c7e8b8079e480c6 [2021-11-23 00:51:12,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:51:12,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:51:12,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:51:12,617 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:51:12,618 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:51:12,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2021-11-23 00:51:12,695 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ/data/818844663/9b5fad0681dc48d988be41997faa921a/FLAG28e11e8c5 [2021-11-23 00:51:13,309 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:51:13,310 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2021-11-23 00:51:13,330 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ/data/818844663/9b5fad0681dc48d988be41997faa921a/FLAG28e11e8c5 [2021-11-23 00:51:13,602 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ/data/818844663/9b5fad0681dc48d988be41997faa921a [2021-11-23 00:51:13,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:51:13,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:51:13,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:51:13,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:51:13,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:51:13,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:51:13" (1/1) ... [2021-11-23 00:51:13,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750e712c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:13, skipping insertion in model container [2021-11-23 00:51:13,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:51:13" (1/1) ... [2021-11-23 00:51:13,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:51:13,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:51:13,993 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_078ced7b-bf59-4753-903f-622549a9121b/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c[12639,12652] [2021-11-23 00:51:13,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:51:14,008 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:51:14,093 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_078ced7b-bf59-4753-903f-622549a9121b/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c[12639,12652] [2021-11-23 00:51:14,094 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:51:14,135 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:51:14,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:14 WrapperNode [2021-11-23 00:51:14,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:51:14,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:51:14,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:51:14,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:51:14,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:14" (1/1) ... [2021-11-23 00:51:14,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:14" (1/1) ... [2021-11-23 00:51:14,229 INFO L137 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 384 [2021-11-23 00:51:14,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:51:14,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:51:14,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:51:14,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:51:14,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:14" (1/1) ... [2021-11-23 00:51:14,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:14" (1/1) ... [2021-11-23 00:51:14,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:14" (1/1) ... [2021-11-23 00:51:14,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:14" (1/1) ... [2021-11-23 00:51:14,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:14" (1/1) ... [2021-11-23 00:51:14,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:14" (1/1) ... [2021-11-23 00:51:14,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:14" (1/1) ... [2021-11-23 00:51:14,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:51:14,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:51:14,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:51:14,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:51:14,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:14" (1/1) ... [2021-11-23 00:51:14,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:51:14,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:51:14,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:51:14,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078ced7b-bf59-4753-903f-622549a9121b/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:51:14,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:51:14,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:51:14,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:51:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:51:14,504 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:51:14,506 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:51:15,159 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:51:15,955 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:51:15,955 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:51:15,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:51:15 BoogieIcfgContainer [2021-11-23 00:51:15,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:51:15,960 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:51:15,960 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:51:15,973 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:51:15,974 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:51:15" (1/1) ... [2021-11-23 00:51:15,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:51:16,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:51:16,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2021-11-23 00:51:16,083 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2021-11-23 00:51:16,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 00:51:16,086 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:51:16,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:51:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:51:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:51:16,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:51:16,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 9 states and 12 transitions. [2021-11-23 00:51:16,866 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2021-11-23 00:51:16,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:51:16,867 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:51:16,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:51:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:51:19,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:51:21,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:51:21,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 13 states and 22 transitions. [2021-11-23 00:51:21,223 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 22 transitions. [2021-11-23 00:51:21,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 00:51:21,225 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:51:21,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:51:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:51:23,834 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:51:30,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:51:30,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 20 states and 45 transitions. [2021-11-23 00:51:30,223 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 45 transitions. [2021-11-23 00:51:30,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:51:30,224 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:51:30,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:51:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:52:18,080 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:09,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:09,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 30 states and 76 transitions. [2021-11-23 00:53:09,075 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 76 transitions. [2021-11-23 00:53:09,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:53:09,076 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:09,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:43,860 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:50,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:50,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 31 states and 79 transitions. [2021-11-23 00:53:50,526 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 79 transitions. [2021-11-23 00:53:50,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 00:53:50,527 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:50,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:52,821 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:54:29,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:29,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 39 states and 100 transitions. [2021-11-23 00:54:29,847 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 100 transitions. [2021-11-23 00:54:29,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 00:54:29,848 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:29,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat