./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.schedule_world.1.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75bd0-34cc-4883-9a09-0e18c587f3e8/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75bd0-34cc-4883-9a09-0e18c587f3e8/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_45e75bd0-34cc-4883-9a09-0e18c587f3e8/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75bd0-34cc-4883-9a09-0e18c587f3e8/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.schedule_world.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75bd0-34cc-4883-9a09-0e18c587f3e8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75bd0-34cc-4883-9a09-0e18c587f3e8/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 64bit --witnessprinter.graph.data.programhash 7da5f319f25cda7b021cc345254a912773e9daeba600652cb5cce7767fa404e1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:57:34,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:57:34,235 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75bd0-34cc-4883-9a09-0e18c587f3e8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-11-19 03:57:34,242 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:57:34,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:57:34,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:57:34,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:57:34,286 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:57:34,287 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:57:34,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:57:34,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:57:34,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:57:34,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:57:34,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:57:34,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:57:34,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:57:34,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:57:34,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:57:34,298 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:57:34,299 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:57:34,299 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:57:34,300 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:57:34,301 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:57:34,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:34,302 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:57:34,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:57:34,303 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:57:34,304 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:57:34,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:57:34,305 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:57:34,306 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_45e75bd0-34cc-4883-9a09-0e18c587f3e8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75bd0-34cc-4883-9a09-0e18c587f3e8/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7da5f319f25cda7b021cc345254a912773e9daeba600652cb5cce7767fa404e1 [2023-11-19 03:57:34,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:57:34,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:57:34,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:57:34,619 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:57:34,620 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:57:34,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75bd0-34cc-4883-9a09-0e18c587f3e8/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.schedule_world.1.prop1-func-interl.c [2023-11-19 03:57:37,675 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:57:38,087 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:57:38,088 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75bd0-34cc-4883-9a09-0e18c587f3e8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.schedule_world.1.prop1-func-interl.c [2023-11-19 03:57:38,108 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75bd0-34cc-4883-9a09-0e18c587f3e8/bin/ukojak-verify-G8NBE6pJGL/data/384144a16/04fbeee187ce4ffa9e10202d7717ea1c/FLAGf67a3cfc2 [2023-11-19 03:57:38,124 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75bd0-34cc-4883-9a09-0e18c587f3e8/bin/ukojak-verify-G8NBE6pJGL/data/384144a16/04fbeee187ce4ffa9e10202d7717ea1c [2023-11-19 03:57:38,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:57:38,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:57:38,130 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:38,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:57:38,137 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:57:38,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:38" (1/1) ... [2023-11-19 03:57:38,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4d1cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:38, skipping insertion in model container [2023-11-19 03:57:38,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:38" (1/1) ... [2023-11-19 03:57:38,227 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:57:38,434 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_45e75bd0-34cc-4883-9a09-0e18c587f3e8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.schedule_world.1.prop1-func-interl.c[1181,1194] [2023-11-19 03:57:38,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:38,915 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:57:38,931 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_45e75bd0-34cc-4883-9a09-0e18c587f3e8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.schedule_world.1.prop1-func-interl.c[1181,1194] [2023-11-19 03:57:39,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:39,207 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:57:39,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39 WrapperNode [2023-11-19 03:57:39,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:39,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:39,210 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:57:39,210 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:57:39,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:40,041 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5071 [2023-11-19 03:57:40,042 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:40,043 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:57:40,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:57:40,044 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:57:40,054 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:40,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:40,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:40,284 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:40,509 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:40,591 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:40,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:40,691 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:40,819 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:57:40,820 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:57:40,821 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:57:40,821 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:57:40,822 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:40,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:40,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75bd0-34cc-4883-9a09-0e18c587f3e8/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:57:40,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75bd0-34cc-4883-9a09-0e18c587f3e8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:57:40,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e75bd0-34cc-4883-9a09-0e18c587f3e8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:57:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:57:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:57:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:57:40,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:57:41,385 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:57:41,387 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:57:45,658 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:57:55,137 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:57:55,138 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:57:55,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:55 BoogieIcfgContainer [2023-11-19 03:57:55,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:57:55,149 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:57:55,149 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:57:55,163 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:57:55,163 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:55" (1/1) ... [2023-11-19 03:57:55,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:57:55,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:55,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-19 03:57:55,270 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-19 03:57:55,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:57:55,273 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:55,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:57,465 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 03:58:07,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 03:58:17,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 03:58:18,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:58:18,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-11-19 03:58:18,443 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-19 03:58:18,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:58:18,444 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:58:18,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms