./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem15_label28.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_c6fae3fb-9858-4e0b-af50-953c5c2804e5/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fae3fb-9858-4e0b-af50-953c5c2804e5/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fae3fb-9858-4e0b-af50-953c5c2804e5/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fae3fb-9858-4e0b-af50-953c5c2804e5/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem15_label28.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fae3fb-9858-4e0b-af50-953c5c2804e5/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fae3fb-9858-4e0b-af50-953c5c2804e5/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --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 e1b64adb5298d170b0a0065804aa34285565fef303a8d1c9e978e6f35837be1e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:30:49,083 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:30:49,176 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fae3fb-9858-4e0b-af50-953c5c2804e5/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:30:49,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:30:49,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:30:49,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:30:49,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:30:49,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:30:49,223 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:30:49,224 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:30:49,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:30:49,225 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:30:49,226 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:30:49,227 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:30:49,228 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:30:49,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:30:49,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:30:49,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:30:49,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:30:49,232 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:30:49,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:30:49,233 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:30:49,234 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:30:49,234 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:30:49,235 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:30:49,236 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:30:49,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:30:49,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:30:49,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:30:49,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:30:49,239 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:30:49,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:30:49,240 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:30:49,240 INFO L153 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_c6fae3fb-9858-4e0b-af50-953c5c2804e5/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fae3fb-9858-4e0b-af50-953c5c2804e5/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1b64adb5298d170b0a0065804aa34285565fef303a8d1c9e978e6f35837be1e [2023-11-19 03:30:49,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:30:49,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:30:49,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:30:49,611 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:30:49,612 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:30:49,614 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fae3fb-9858-4e0b-af50-953c5c2804e5/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/eca-rers2012/Problem15_label28.c [2023-11-19 03:30:53,222 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:30:53,732 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:30:53,733 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fae3fb-9858-4e0b-af50-953c5c2804e5/sv-benchmarks/c/eca-rers2012/Problem15_label28.c [2023-11-19 03:30:53,768 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fae3fb-9858-4e0b-af50-953c5c2804e5/bin/ukojak-verify-G8NBE6pJGL/data/87380c116/883a9e78531046199b5d7e455c8e6d9b/FLAG0a2bceb26 [2023-11-19 03:30:53,785 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fae3fb-9858-4e0b-af50-953c5c2804e5/bin/ukojak-verify-G8NBE6pJGL/data/87380c116/883a9e78531046199b5d7e455c8e6d9b [2023-11-19 03:30:53,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:30:53,791 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:30:53,792 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:30:53,793 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:30:53,799 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:30:53,800 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:30:53" (1/1) ... [2023-11-19 03:30:53,801 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e2891c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:53, skipping insertion in model container [2023-11-19 03:30:53,802 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:30:53" (1/1) ... [2023-11-19 03:30:53,910 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:30:54,183 WARN L240 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_c6fae3fb-9858-4e0b-af50-953c5c2804e5/sv-benchmarks/c/eca-rers2012/Problem15_label28.c[4049,4062] [2023-11-19 03:30:54,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:30:54,849 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:30:54,886 WARN L240 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_c6fae3fb-9858-4e0b-af50-953c5c2804e5/sv-benchmarks/c/eca-rers2012/Problem15_label28.c[4049,4062] [2023-11-19 03:30:55,399 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:30:55,422 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:30:55,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:55 WrapperNode [2023-11-19 03:30:55,423 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:30:55,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:30:55,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:30:55,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:30:55,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:55" (1/1) ... [2023-11-19 03:30:55,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:55" (1/1) ... [2023-11-19 03:30:55,706 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2023-11-19 03:30:55,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:30:55,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:30:55,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:30:55,709 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:30:55,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:55" (1/1) ... [2023-11-19 03:30:55,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:55" (1/1) ... [2023-11-19 03:30:55,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:55" (1/1) ... [2023-11-19 03:30:55,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:55" (1/1) ... [2023-11-19 03:30:55,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:55" (1/1) ... [2023-11-19 03:30:55,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:55" (1/1) ... [2023-11-19 03:30:56,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:55" (1/1) ... [2023-11-19 03:30:56,010 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:55" (1/1) ... [2023-11-19 03:30:56,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:30:56,058 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:30:56,059 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:30:56,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:30:56,060 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:30:55" (1/1) ... [2023-11-19 03:30:56,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:30:56,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fae3fb-9858-4e0b-af50-953c5c2804e5/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:30:56,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fae3fb-9858-4e0b-af50-953c5c2804e5/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:30:56,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fae3fb-9858-4e0b-af50-953c5c2804e5/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:30:56,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:30:56,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:30:56,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:30:56,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:30:56,278 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:30:56,281 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:30:59,807 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:31:34,830 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:31:34,830 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:31:34,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:31:34 BoogieIcfgContainer [2023-11-19 03:31:34,845 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:31:34,849 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:31:34,849 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:31:34,862 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:31:34,862 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:31:34" (1/1) ... [2023-11-19 03:31:34,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:31:34,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:31:34,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-19 03:31:34,969 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-19 03:31:34,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:31:34,972 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:31:34,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:31:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:31:35,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:31:35,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:31:35,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-19 03:31:35,822 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-19 03:31:35,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:31:35,822 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:31:35,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:31:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat