./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem102_label36.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem102_label36.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ecf04ade36172721271f30a45718a4ce8d302c73c1bdfb68c92a4dffecac9db3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:06:45,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:06:45,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:06:45,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:06:45,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:06:45,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:06:45,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:06:45,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:06:45,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:06:45,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:06:45,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:06:45,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:06:45,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:06:45,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:06:45,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:06:45,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:06:45,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:06:45,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:06:45,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:06:45,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:06:45,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:06:45,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:06:45,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:06:45,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:06:45,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:06:45,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:06:45,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:06:45,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:06:45,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:06:45,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:06:45,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:06:45,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:06:45,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:06:45,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:06:45,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:06:45,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:06:45,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:06:45,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:06:45,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:06:45,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:06:45,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:06:45,268 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:06:45,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:06:45,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:06:45,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:06:45,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:06:45,309 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:06:45,309 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:06:45,310 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:06:45,310 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:06:45,310 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:06:45,310 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:06:45,311 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:06:45,312 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:06:45,312 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:06:45,312 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:06:45,312 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:06:45,313 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:06:45,313 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:06:45,313 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:06:45,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:06:45,314 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:06:45,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:06:45,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:06:45,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:06:45,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:06:45,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:06:45,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:06:45,316 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:06:45,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:06:45,316 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:06:45,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:06:45,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:06:45,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:06:45,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:06:45,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:06:45,318 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:06:45,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:06:45,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:06:45,318 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:06:45,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:06:45,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:06:45,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:06:45,319 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_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecf04ade36172721271f30a45718a4ce8d302c73c1bdfb68c92a4dffecac9db3 [2022-11-19 07:06:45,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:06:45,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:06:45,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:06:45,611 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:06:45,612 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:06:45,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/eca-programs/Problem102_label36.c [2022-11-19 07:06:45,686 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS/data/3b1980f2c/a9743f55484f42109d28e0f4db5fbe41/FLAGc6c5ad3f5 [2022-11-19 07:06:49,060 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:06:49,061 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/sv-benchmarks/c/eca-programs/Problem102_label36.c [2022-11-19 07:06:49,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS/data/3b1980f2c/a9743f55484f42109d28e0f4db5fbe41/FLAGc6c5ad3f5 [2022-11-19 07:06:49,635 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS/data/3b1980f2c/a9743f55484f42109d28e0f4db5fbe41 [2022-11-19 07:06:49,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:06:49,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:06:49,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:06:49,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:06:49,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:06:49,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:06:49" (1/1) ... [2022-11-19 07:06:49,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67c80ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:49, skipping insertion in model container [2022-11-19 07:06:49,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:06:49" (1/1) ... [2022-11-19 07:06:49,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:06:51,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:07:19,098 WARN L234 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_868c0f66-83ed-4a06-8a4f-0638c997422c/sv-benchmarks/c/eca-programs/Problem102_label36.c[5717449,5717462] [2022-11-19 07:07:19,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:07:19,222 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:07:33,862 WARN L234 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_868c0f66-83ed-4a06-8a4f-0638c997422c/sv-benchmarks/c/eca-programs/Problem102_label36.c[5717449,5717462] [2022-11-19 07:07:33,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:07:40,734 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:07:40,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:40 WrapperNode [2022-11-19 07:07:40,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:07:40,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:07:40,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:07:40,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:07:40,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:40" (1/1) ... [2022-11-19 07:07:42,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:40" (1/1) ... [2022-11-19 07:07:47,739 INFO L138 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184295 [2022-11-19 07:07:47,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:07:47,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:07:47,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:07:47,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:07:47,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:40" (1/1) ... [2022-11-19 07:07:47,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:40" (1/1) ... [2022-11-19 07:07:49,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:40" (1/1) ... [2022-11-19 07:07:49,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:40" (1/1) ... [2022-11-19 07:07:51,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:40" (1/1) ... [2022-11-19 07:07:52,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:40" (1/1) ... [2022-11-19 07:07:52,594 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:40" (1/1) ... [2022-11-19 07:07:52,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:40" (1/1) ... [2022-11-19 07:07:54,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:07:54,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:07:54,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:07:54,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:07:54,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:07:40" (1/1) ... [2022-11-19 07:07:54,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:07:54,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:07:54,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:07:54,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_868c0f66-83ed-4a06-8a4f-0638c997422c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:07:54,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:07:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:07:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:07:54,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:07:54,299 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:07:54,301 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:09:31,489 INFO L276 CfgBuilder]: Performing block encoding