./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 2329fc70 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_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-data/packet_filter.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/bin/ukojak-rkRKPMF4O4 --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 --- [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-2329fc7 [2022-12-14 18:45:44,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 18:45:44,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 18:45:44,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 18:45:44,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 18:45:44,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 18:45:44,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 18:45:44,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 18:45:44,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 18:45:44,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 18:45:44,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 18:45:44,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 18:45:44,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 18:45:44,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 18:45:44,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 18:45:44,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 18:45:44,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 18:45:44,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 18:45:44,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 18:45:44,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 18:45:44,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 18:45:44,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 18:45:44,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 18:45:44,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 18:45:44,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 18:45:44,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 18:45:44,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 18:45:44,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 18:45:44,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 18:45:44,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 18:45:44,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 18:45:44,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 18:45:44,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 18:45:44,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 18:45:44,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 18:45:44,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 18:45:44,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 18:45:44,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 18:45:44,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 18:45:44,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 18:45:44,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 18:45:44,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 18:45:44,296 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 18:45:44,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 18:45:44,297 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 18:45:44,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 18:45:44,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 18:45:44,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 18:45:44,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 18:45:44,298 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 18:45:44,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 18:45:44,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 18:45:44,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 18:45:44,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 18:45:44,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 18:45:44,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 18:45:44,299 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 18:45:44,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 18:45:44,299 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 18:45:44,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 18:45:44,300 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 18:45:44,300 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 18:45:44,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 18:45:44,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:45:44,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 18:45:44,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 18:45:44,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 18:45:44,301 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 18:45:44,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 18:45:44,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 18:45:44,301 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_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d604fdd8f7c4d34db0106d8a0ff422218ae80e9ee6eb03f691b84d2fcc8ad49f [2022-12-14 18:45:44,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 18:45:44,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 18:45:44,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 18:45:44,502 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 18:45:44,503 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 18:45:44,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/heap-data/packet_filter.i [2022-12-14 18:45:46,999 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 18:45:47,194 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 18:45:47,194 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/sv-benchmarks/c/heap-data/packet_filter.i [2022-12-14 18:45:47,201 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/bin/ukojak-rkRKPMF4O4/data/a39152aa1/f430d8179cf84aae8bf990b80df21042/FLAG5e078dfb3 [2022-12-14 18:45:47,592 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/bin/ukojak-rkRKPMF4O4/data/a39152aa1/f430d8179cf84aae8bf990b80df21042 [2022-12-14 18:45:47,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 18:45:47,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 18:45:47,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 18:45:47,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 18:45:47,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 18:45:47,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:45:47" (1/1) ... [2022-12-14 18:45:47,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5052f385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:47, skipping insertion in model container [2022-12-14 18:45:47,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:45:47" (1/1) ... [2022-12-14 18:45:47,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 18:45:47,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 18:45:47,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_nondet_charp [2022-12-14 18:45:47,807 WARN L237 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_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/sv-benchmarks/c/heap-data/packet_filter.i[23925,23938] [2022-12-14 18:45:47,813 WARN L237 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_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/sv-benchmarks/c/heap-data/packet_filter.i[24159,24172] [2022-12-14 18:45:47,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:45:47,824 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 18:45:47,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_nondet_charp [2022-12-14 18:45:47,850 WARN L237 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_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/sv-benchmarks/c/heap-data/packet_filter.i[23925,23938] [2022-12-14 18:45:47,851 WARN L237 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_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/sv-benchmarks/c/heap-data/packet_filter.i[24159,24172] [2022-12-14 18:45:47,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:45:47,872 INFO L208 MainTranslator]: Completed translation [2022-12-14 18:45:47,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:47 WrapperNode [2022-12-14 18:45:47,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 18:45:47,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 18:45:47,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 18:45:47,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 18:45:47,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:47" (1/1) ... [2022-12-14 18:45:47,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:47" (1/1) ... [2022-12-14 18:45:47,903 INFO L138 Inliner]: procedures = 130, calls = 86, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 156 [2022-12-14 18:45:47,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 18:45:47,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 18:45:47,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 18:45:47,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 18:45:47,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:47" (1/1) ... [2022-12-14 18:45:47,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:47" (1/1) ... [2022-12-14 18:45:47,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:47" (1/1) ... [2022-12-14 18:45:47,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:47" (1/1) ... [2022-12-14 18:45:47,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:47" (1/1) ... [2022-12-14 18:45:47,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:47" (1/1) ... [2022-12-14 18:45:47,922 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:47" (1/1) ... [2022-12-14 18:45:47,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:47" (1/1) ... [2022-12-14 18:45:47,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 18:45:47,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 18:45:47,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 18:45:47,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 18:45:47,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:47" (1/1) ... [2022-12-14 18:45:47,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:45:47,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 18:45:47,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 18:45:47,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec301226-e6a6-49e8-8ec2-04e780ba7bb9/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 18:45:47,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 18:45:47,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 18:45:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 18:45:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 18:45:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_queue [2022-12-14 18:45:47,981 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_queue [2022-12-14 18:45:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 18:45:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 18:45:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 18:45:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_charp [2022-12-14 18:45:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure send [2022-12-14 18:45:47,981 INFO L138 BoogieDeclarations]: Found implementation of procedure send [2022-12-14 18:45:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 18:45:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 18:45:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 18:45:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 18:45:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 18:45:48,074 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 18:45:48,076 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 18:45:48,365 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 18:45:48,412 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 18:45:48,412 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 18:45:48,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:45:48 BoogieIcfgContainer [2022-12-14 18:45:48,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 18:45:48,414 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 18:45:48,415 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 18:45:48,422 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 18:45:48,422 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:45:48" (1/1) ... [2022-12-14 18:45:48,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 18:45:48,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:45:48,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 33 states and 44 transitions. [2022-12-14 18:45:48,469 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2022-12-14 18:45:48,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 18:45:48,473 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:45:48,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:45:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:45:48,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:45:48,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:45:48,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2022-12-14 18:45:48,596 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2022-12-14 18:45:48,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 18:45:48,596 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:45:48,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:45:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:45:48,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:45:48,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:45:48,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 37 states and 48 transitions. [2022-12-14 18:45:48,762 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2022-12-14 18:45:48,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 18:45:48,762 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:45:48,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:45:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:45:48,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:45:49,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:45:49,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 42 states and 55 transitions. [2022-12-14 18:45:49,030 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2022-12-14 18:45:49,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 18:45:49,031 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:45:49,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:45:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:45:49,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:45:49,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:45:49,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 46 states and 67 transitions. [2022-12-14 18:45:49,508 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 67 transitions. [2022-12-14 18:45:49,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 18:45:49,509 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:45:49,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:45:49,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:45:49,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:45:49,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:45:49,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 50 states and 80 transitions. [2022-12-14 18:45:49,876 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 80 transitions. [2022-12-14 18:45:49,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 18:45:49,877 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:45:49,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:45:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:45:50,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:45:51,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:45:51,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 62 states and 113 transitions. [2022-12-14 18:45:51,962 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 113 transitions. [2022-12-14 18:45:51,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 18:45:51,963 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:45:51,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:45:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:45:52,383 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:45:53,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:45:53,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 66 states and 127 transitions. [2022-12-14 18:45:53,205 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 127 transitions. [2022-12-14 18:45:53,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 18:45:53,206 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:45:53,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:45:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:45:53,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:45:53,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:45:53,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 66 states and 124 transitions. [2022-12-14 18:45:53,946 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 124 transitions. [2022-12-14 18:45:53,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 18:45:53,947 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:45:53,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:45:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:46:23,915 WARN L233 SmtUtils]: Spent 12.23s on a formula simplification that was a NOOP. DAG size: 152 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:46:23,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:46:42,366 WARN L233 SmtUtils]: Spent 12.52s on a formula simplification that was a NOOP. DAG size: 171 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:47:00,481 WARN L233 SmtUtils]: Spent 12.11s on a formula simplification that was a NOOP. DAG size: 153 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:47:12,967 WARN L233 SmtUtils]: Spent 11.31s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:47:33,900 WARN L233 SmtUtils]: Spent 13.01s on a formula simplification that was a NOOP. DAG size: 172 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:47:54,116 WARN L233 SmtUtils]: Spent 15.93s on a formula simplification that was a NOOP. DAG size: 174 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:47:56,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:47:56,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 73 states and 142 transitions. [2022-12-14 18:47:56,246 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 142 transitions. [2022-12-14 18:47:56,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 18:47:56,246 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:47:56,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:47:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:47:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:48:23,168 WARN L233 SmtUtils]: Spent 13.05s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:48:56,194 WARN L233 SmtUtils]: Spent 26.90s on a formula simplification. DAG size of input: 176 DAG size of output: 175 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:49:18,953 WARN L233 SmtUtils]: Spent 15.39s on a formula simplification that was a NOOP. DAG size: 176 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:49:45,524 WARN L233 SmtUtils]: Spent 16.83s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:49:52,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:49:52,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 82 states and 171 transitions. [2022-12-14 18:49:52,441 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 171 transitions. [2022-12-14 18:49:52,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 18:49:52,441 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:49:52,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:49:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:49:53,641 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 18:50:01,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:50:01,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 86 states and 184 transitions. [2022-12-14 18:50:01,224 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 184 transitions. [2022-12-14 18:50:01,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 18:50:01,224 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:50:01,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:50:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:50:08,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:50:37,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:50:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 100 states and 228 transitions. [2022-12-14 18:50:37,329 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 228 transitions. [2022-12-14 18:50:37,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 18:50:37,331 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:50:37,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:50:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:50:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:50:39,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:50:39,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 100 states and 223 transitions. [2022-12-14 18:50:39,791 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 223 transitions. [2022-12-14 18:50:39,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 18:50:39,791 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:50:39,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:50:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:50:47,962 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:52:10,104 WARN L233 SmtUtils]: Spent 46.26s on a formula simplification. DAG size of input: 208 DAG size of output: 207 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:53:05,668 WARN L233 SmtUtils]: Spent 40.88s on a formula simplification. DAG size of input: 210 DAG size of output: 209 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:53:58,449 WARN L233 SmtUtils]: Spent 27.28s on a formula simplification that was a NOOP. DAG size: 208 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:54:06,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 18:54:49,961 WARN L233 SmtUtils]: Spent 22.87s on a formula simplification that was a NOOP. DAG size: 210 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:55:09,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:55:09,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 106 states and 245 transitions. [2022-12-14 18:55:09,461 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 245 transitions. [2022-12-14 18:55:09,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 18:55:09,462 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:55:09,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:55:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:55:12,678 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 18:55:31,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:55:31,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 111 states and 268 transitions. [2022-12-14 18:55:31,212 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 268 transitions. [2022-12-14 18:55:31,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 18:55:31,213 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:55:31,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:55:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:56:49,604 WARN L233 SmtUtils]: Spent 20.70s on a formula simplification that was a NOOP. DAG size: 181 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:56:49,617 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:57:39,771 WARN L233 SmtUtils]: Spent 21.01s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 18:57:46,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:57:46,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 112 states and 270 transitions. [2022-12-14 18:57:46,511 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 270 transitions. [2022-12-14 18:57:46,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 18:57:46,512 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:57:46,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:57:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:58:08,867 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:58:17,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:58:17,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 115 states and 279 transitions. [2022-12-14 18:58:17,975 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 279 transitions. [2022-12-14 18:58:17,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 18:58:17,976 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:58:17,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:58:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:58:29,656 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:59:00,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:00,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 121 states and 302 transitions. [2022-12-14 18:59:00,172 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 302 transitions. [2022-12-14 18:59:00,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 18:59:00,173 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:00,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:14,641 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 18:59:24,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:59:24,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 123 states and 308 transitions. [2022-12-14 18:59:24,019 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 308 transitions. [2022-12-14 18:59:24,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 18:59:24,020 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:59:24,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:59:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:59:37,637 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.