./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.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_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/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_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/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_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/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 b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 --- 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 20:00:11,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 20:00:11,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 20:00:11,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 20:00:11,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 20:00:11,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 20:00:11,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 20:00:11,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 20:00:11,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 20:00:11,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 20:00:11,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 20:00:11,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 20:00:11,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 20:00:11,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 20:00:11,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 20:00:11,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 20:00:11,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 20:00:11,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 20:00:11,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 20:00:11,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 20:00:11,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 20:00:11,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 20:00:11,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 20:00:11,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 20:00:11,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 20:00:11,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 20:00:11,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 20:00:11,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 20:00:11,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 20:00:11,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 20:00:11,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 20:00:11,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 20:00:11,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 20:00:11,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 20:00:11,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 20:00:11,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 20:00:11,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 20:00:11,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 20:00:11,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 20:00:11,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 20:00:11,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 20:00:11,259 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 20:00:11,277 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 20:00:11,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 20:00:11,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 20:00:11,278 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 20:00:11,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 20:00:11,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 20:00:11,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 20:00:11,280 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 20:00:11,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 20:00:11,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 20:00:11,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 20:00:11,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 20:00:11,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 20:00:11,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 20:00:11,281 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 20:00:11,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 20:00:11,281 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 20:00:11,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 20:00:11,282 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 20:00:11,282 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 20:00:11,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 20:00:11,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 20:00:11,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 20:00:11,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 20:00:11,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 20:00:11,283 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 20:00:11,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 20:00:11,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 20:00:11,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 [2022-12-14 20:00:11,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 20:00:11,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 20:00:11,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 20:00:11,495 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 20:00:11,495 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 20:00:11,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2022-12-14 20:00:14,135 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 20:00:14,271 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 20:00:14,271 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2022-12-14 20:00:14,275 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/bin/ukojak-rkRKPMF4O4/data/683a0dc18/03fcdad838264dccb51c3d0116f97711/FLAG206167a20 [2022-12-14 20:00:14,285 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/bin/ukojak-rkRKPMF4O4/data/683a0dc18/03fcdad838264dccb51c3d0116f97711 [2022-12-14 20:00:14,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 20:00:14,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 20:00:14,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 20:00:14,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 20:00:14,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 20:00:14,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:00:14" (1/1) ... [2022-12-14 20:00:14,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@163ea138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:00:14, skipping insertion in model container [2022-12-14 20:00:14,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:00:14" (1/1) ... [2022-12-14 20:00:14,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 20:00:14,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 20:00:14,409 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_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2022-12-14 20:00:14,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 20:00:14,430 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 20:00:14,439 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_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2022-12-14 20:00:14,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 20:00:14,456 INFO L208 MainTranslator]: Completed translation [2022-12-14 20:00:14,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:00:14 WrapperNode [2022-12-14 20:00:14,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 20:00:14,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 20:00:14,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 20:00:14,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 20:00:14,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:00:14" (1/1) ... [2022-12-14 20:00:14,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:00:14" (1/1) ... [2022-12-14 20:00:14,482 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 106 [2022-12-14 20:00:14,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 20:00:14,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 20:00:14,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 20:00:14,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 20:00:14,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:00:14" (1/1) ... [2022-12-14 20:00:14,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:00:14" (1/1) ... [2022-12-14 20:00:14,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:00:14" (1/1) ... [2022-12-14 20:00:14,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:00:14" (1/1) ... [2022-12-14 20:00:14,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:00:14" (1/1) ... [2022-12-14 20:00:14,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:00:14" (1/1) ... [2022-12-14 20:00:14,499 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:00:14" (1/1) ... [2022-12-14 20:00:14,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:00:14" (1/1) ... [2022-12-14 20:00:14,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 20:00:14,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 20:00:14,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 20:00:14,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 20:00:14,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:00:14" (1/1) ... [2022-12-14 20:00:14,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 20:00:14,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 20:00:14,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 20:00:14,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 20:00:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 20:00:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 20:00:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 20:00:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 20:00:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 20:00:14,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 20:00:14,636 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 20:00:14,638 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 20:00:14,766 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 20:00:14,785 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 20:00:14,785 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 20:00:14,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:00:14 BoogieIcfgContainer [2022-12-14 20:00:14,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 20:00:14,788 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 20:00:14,788 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 20:00:14,797 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 20:00:14,797 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:00:14" (1/1) ... [2022-12-14 20:00:14,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 20:00:14,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:14,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 47 states and 79 transitions. [2022-12-14 20:00:14,846 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2022-12-14 20:00:14,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 20:00:14,849 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:14,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:15,080 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 20:00:15,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:15,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 49 states and 96 transitions. [2022-12-14 20:00:15,178 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 96 transitions. [2022-12-14 20:00:15,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 20:00:15,180 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:15,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:15,277 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 20:00:15,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:15,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 49 states and 95 transitions. [2022-12-14 20:00:15,383 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 95 transitions. [2022-12-14 20:00:15,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 20:00:15,384 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:15,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:15,462 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 20:00:15,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:15,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 49 states and 94 transitions. [2022-12-14 20:00:15,513 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 94 transitions. [2022-12-14 20:00:15,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 20:00:15,514 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:15,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:15,619 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 20:00:15,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:15,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 49 states and 93 transitions. [2022-12-14 20:00:15,708 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 93 transitions. [2022-12-14 20:00:15,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 20:00:15,709 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:15,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:15,769 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 20:00:15,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:15,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 51 states and 96 transitions. [2022-12-14 20:00:15,854 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 96 transitions. [2022-12-14 20:00:15,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 20:00:15,854 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:15,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:15,896 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 20:00:15,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:15,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 52 states and 97 transitions. [2022-12-14 20:00:15,911 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 97 transitions. [2022-12-14 20:00:15,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 20:00:15,911 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:15,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:15,947 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 20:00:15,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:15,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 53 states and 97 transitions. [2022-12-14 20:00:15,963 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 97 transitions. [2022-12-14 20:00:15,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 20:00:15,965 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:15,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:16,004 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 20:00:16,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:16,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 56 states and 103 transitions. [2022-12-14 20:00:16,038 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 103 transitions. [2022-12-14 20:00:16,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 20:00:16,040 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:16,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:16,076 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 20:00:16,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:16,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 57 states and 104 transitions. [2022-12-14 20:00:16,090 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 104 transitions. [2022-12-14 20:00:16,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 20:00:16,090 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:16,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:16,123 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 20:00:16,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:16,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 59 states and 106 transitions. [2022-12-14 20:00:16,146 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 106 transitions. [2022-12-14 20:00:16,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 20:00:16,147 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:16,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:16,179 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 20:00:16,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:16,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 62 states and 111 transitions. [2022-12-14 20:00:16,329 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 111 transitions. [2022-12-14 20:00:16,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 20:00:16,329 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:16,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:16,407 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 20:00:16,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:16,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 62 states and 109 transitions. [2022-12-14 20:00:16,502 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 109 transitions. [2022-12-14 20:00:16,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-14 20:00:16,503 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:16,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:16,576 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-12-14 20:00:16,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:16,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 58 states and 103 transitions. [2022-12-14 20:00:16,681 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 103 transitions. [2022-12-14 20:00:16,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 20:00:16,682 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:16,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:16,751 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-12-14 20:00:16,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:16,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 58 states and 102 transitions. [2022-12-14 20:00:16,839 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 102 transitions. [2022-12-14 20:00:16,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-14 20:00:16,840 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:16,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:16,917 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-12-14 20:00:17,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:17,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 58 states and 101 transitions. [2022-12-14 20:00:17,201 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 101 transitions. [2022-12-14 20:00:17,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 20:00:17,201 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:17,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:17,248 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-12-14 20:00:17,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:17,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 52 states and 91 transitions. [2022-12-14 20:00:17,290 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 91 transitions. [2022-12-14 20:00:17,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 20:00:17,291 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:17,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:17,369 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-12-14 20:00:17,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:17,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 52 states and 90 transitions. [2022-12-14 20:00:17,417 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 90 transitions. [2022-12-14 20:00:17,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 20:00:17,418 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:17,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:17,474 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-12-14 20:00:17,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:17,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 52 states and 89 transitions. [2022-12-14 20:00:17,517 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 89 transitions. [2022-12-14 20:00:17,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 20:00:17,518 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:17,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:17,557 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 43 proven. 4 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-12-14 20:00:17,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:17,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 54 states and 92 transitions. [2022-12-14 20:00:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 92 transitions. [2022-12-14 20:00:17,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 20:00:17,595 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:17,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 48 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-14 20:00:17,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:17,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 57 states and 97 transitions. [2022-12-14 20:00:17,676 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 97 transitions. [2022-12-14 20:00:17,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 20:00:17,676 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:17,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:17,778 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-12-14 20:00:18,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:18,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 57 states and 96 transitions. [2022-12-14 20:00:18,053 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 96 transitions. [2022-12-14 20:00:18,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 20:00:18,056 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:18,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-12-14 20:00:18,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:18,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 59 states and 99 transitions. [2022-12-14 20:00:18,611 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 99 transitions. [2022-12-14 20:00:18,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 20:00:18,612 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:18,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:18,712 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-12-14 20:00:19,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:19,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 66 states and 114 transitions. [2022-12-14 20:00:19,394 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 114 transitions. [2022-12-14 20:00:19,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 20:00:19,395 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:19,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:19,487 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-12-14 20:00:19,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:19,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 72 states and 129 transitions. [2022-12-14 20:00:19,968 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 129 transitions. [2022-12-14 20:00:19,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-14 20:00:19,969 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:19,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:20,023 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 51 proven. 16 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-12-14 20:00:20,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:20,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 73 states and 130 transitions. [2022-12-14 20:00:20,282 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 130 transitions. [2022-12-14 20:00:20,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 20:00:20,282 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:20,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:20,317 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 56 proven. 16 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-12-14 20:00:20,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:20,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 77 states and 139 transitions. [2022-12-14 20:00:20,650 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 139 transitions. [2022-12-14 20:00:20,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-14 20:00:20,651 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:20,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:20,721 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2022-12-14 20:00:20,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:20,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 78 states and 141 transitions. [2022-12-14 20:00:20,743 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 141 transitions. [2022-12-14 20:00:20,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-14 20:00:20,744 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:20,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:20,847 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-12-14 20:00:21,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:21,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 80 states and 145 transitions. [2022-12-14 20:00:21,201 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 145 transitions. [2022-12-14 20:00:21,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-12-14 20:00:21,202 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:21,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:21,292 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-12-14 20:00:21,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:21,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 84 states and 154 transitions. [2022-12-14 20:00:21,763 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 154 transitions. [2022-12-14 20:00:21,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-14 20:00:21,763 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:21,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:21,853 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 40 proven. 5 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-12-14 20:00:22,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:22,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 92 states and 170 transitions. [2022-12-14 20:00:22,511 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 170 transitions. [2022-12-14 20:00:22,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-14 20:00:22,511 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:00:22,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:00:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:00:22,643 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-12-14 20:00:23,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:00:23,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 55 states and 93 transitions. [2022-12-14 20:00:23,166 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 93 transitions. [2022-12-14 20:00:23,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 20:00:23,166 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 32 iterations. [2022-12-14 20:00:23,172 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-12-14 20:00:23,299 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 20:00:23,302 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 20:00:23,302 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 20:00:23,303 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 20:00:23,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 08:00:23 ImpRootNode [2022-12-14 20:00:23,303 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 20:00:23,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 20:00:23,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 20:00:23,304 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 20:00:23,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:00:14" (3/4) ... [2022-12-14 20:00:23,306 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 20:00:23,310 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-12-14 20:00:23,314 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-12-14 20:00:23,314 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 20:00:23,314 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 20:00:23,314 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 20:00:23,355 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 20:00:23,355 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 20:00:23,356 INFO L158 Benchmark]: Toolchain (without parser) took 9067.88ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 90.3MB in the beginning and 78.3MB in the end (delta: 12.0MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2022-12-14 20:00:23,356 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 96.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 20:00:23,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.85ms. Allocated memory is still 119.5MB. Free memory was 90.1MB in the beginning and 79.2MB in the end (delta: 10.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 20:00:23,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.56ms. Allocated memory is still 119.5MB. Free memory was 79.2MB in the beginning and 77.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 20:00:23,357 INFO L158 Benchmark]: Boogie Preprocessor took 17.75ms. Allocated memory is still 119.5MB. Free memory was 77.5MB in the beginning and 76.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 20:00:23,357 INFO L158 Benchmark]: RCFGBuilder took 286.21ms. Allocated memory is still 119.5MB. Free memory was 76.2MB in the beginning and 62.7MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 20:00:23,357 INFO L158 Benchmark]: CodeCheck took 8514.78ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 62.5MB in the beginning and 81.5MB in the end (delta: -19.0MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-12-14 20:00:23,357 INFO L158 Benchmark]: Witness Printer took 51.99ms. Allocated memory is still 144.7MB. Free memory was 81.5MB in the beginning and 78.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 20:00:23,359 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 32, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5370 SdHoareTripleChecker+Valid, 9.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1143 mSDsluCounter, 4304 SdHoareTripleChecker+Invalid, 7.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1401 mSDsCounter, 2960 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8321 IncrementalHoareTripleChecker+Invalid, 11281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2960 mSolverCounterUnsat, 2903 mSDtfsCounter, 8321 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15344 GetRequests, 15036 SyntacticMatches, 128 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16140 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1969 NumberOfCodeBlocks, 1969 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1938 ConstructedInterpolants, 0 QuantifiedInterpolants, 3478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 17 PerfectInterpolantSequences, 6559/6633 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 96.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 167.85ms. Allocated memory is still 119.5MB. Free memory was 90.1MB in the beginning and 79.2MB in the end (delta: 10.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.56ms. Allocated memory is still 119.5MB. Free memory was 79.2MB in the beginning and 77.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.75ms. Allocated memory is still 119.5MB. Free memory was 77.5MB in the beginning and 76.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 286.21ms. Allocated memory is still 119.5MB. Free memory was 76.2MB in the beginning and 62.7MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 8514.78ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 62.5MB in the beginning and 81.5MB in the end (delta: -19.0MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Witness Printer took 51.99ms. Allocated memory is still 144.7MB. Free memory was 81.5MB in the beginning and 78.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 20:00:23,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4875a2cf-fd0d-4c06-9f46-ca95f8b0c829/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE