./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9 --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 89fa5bcee0b87baa8fdcd504d33e57009a693bf03fe212b3e5e783c0c5f361d6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:24:08,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:24:08,817 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-03 02:24:08,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 02:24:08,822 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 02:24:08,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:24:08,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:24:08,847 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:24:08,848 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:24:08,849 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:24:08,849 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:24:08,850 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:24:08,850 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:24:08,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:24:08,851 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:24:08,852 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:24:08,852 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:24:08,853 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:24:08,853 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:24:08,854 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:24:08,854 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:24:08,856 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:24:08,856 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:24:08,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:24:08,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:24:08,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:24:08,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:24:08,859 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 02:24:08,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 02:24:08,860 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:24:08,860 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_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89fa5bcee0b87baa8fdcd504d33e57009a693bf03fe212b3e5e783c0c5f361d6 [2023-12-03 02:24:09,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:24:09,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:24:09,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:24:09,103 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:24:09,104 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:24:09,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c [2023-12-03 02:24:11,874 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:24:12,244 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:24:12,245 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c [2023-12-03 02:24:12,268 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/data/85d3b1843/a9e6d8db9cc647dab32bdffd20b429e2/FLAG5beefbe15 [2023-12-03 02:24:12,281 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/data/85d3b1843/a9e6d8db9cc647dab32bdffd20b429e2 [2023-12-03 02:24:12,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:24:12,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:24:12,285 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:24:12,286 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:24:12,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:24:12,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:24:12" (1/1) ... [2023-12-03 02:24:12,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a42e091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:24:12, skipping insertion in model container [2023-12-03 02:24:12,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:24:12" (1/1) ... [2023-12-03 02:24:12,400 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:24:12,611 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_400c60d9-74cc-48ab-9d81-6805da249957/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c[1177,1190] [2023-12-03 02:24:13,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:24:13,497 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:24:13,509 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_400c60d9-74cc-48ab-9d81-6805da249957/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c[1177,1190] [2023-12-03 02:24:14,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:24:14,184 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:24:14,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:24:14 WrapperNode [2023-12-03 02:24:14,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:24:14,187 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:24:14,187 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:24:14,187 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:24:14,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:24:14" (1/1) ... [2023-12-03 02:24:14,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:24:14" (1/1) ... [2023-12-03 02:24:16,475 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29812 [2023-12-03 02:24:16,476 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:24:16,476 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:24:16,477 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:24:16,477 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:24:16,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:24:14" (1/1) ... [2023-12-03 02:24:16,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:24:14" (1/1) ... [2023-12-03 02:24:16,876 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:24:14" (1/1) ... [2023-12-03 02:24:16,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:24:14" (1/1) ... [2023-12-03 02:24:17,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:24:14" (1/1) ... [2023-12-03 02:24:17,648 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:24:14" (1/1) ... [2023-12-03 02:24:17,838 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:24:14" (1/1) ... [2023-12-03 02:24:17,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:24:14" (1/1) ... [2023-12-03 02:24:18,286 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:24:18,287 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:24:18,287 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:24:18,287 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:24:18,288 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:24:14" (1/1) ... [2023-12-03 02:24:18,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:24:18,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:24:18,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:24:18,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:24:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:24:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 02:24:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:24:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:24:19,713 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:24:19,715 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:24:34,458 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:25:30,440 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:25:30,440 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 02:25:30,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:25:30 BoogieIcfgContainer [2023-12-03 02:25:30,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:25:30,443 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:25:30,443 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:25:30,451 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:25:30,451 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:25:30" (1/1) ... [2023-12-03 02:25:30,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:25:30,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:25:30,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 02:25:30,509 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 02:25:30,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 02:25:30,511 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:25:30,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:25:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:25:47,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:25:58,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:26:08,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:26:19,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:26:29,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:26:39,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:26:42,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:26:48,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:26:58,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:26:58,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:26:58,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-03 02:26:58,973 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-03 02:26:58,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 02:26:58,973 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:26:58,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:27:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 02:27:13,535 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-03 02:27:13,539 INFO L158 Benchmark]: Toolchain (without parser) took 181253.94ms. Allocated memory was 138.4MB in the beginning and 9.5GB in the end (delta: 9.4GB). Free memory was 90.2MB in the beginning and 7.7GB in the end (delta: -7.7GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2023-12-03 02:27:13,539 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 138.4MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:27:13,540 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1900.55ms. Allocated memory was 138.4MB in the beginning and 278.9MB in the end (delta: 140.5MB). Free memory was 90.2MB in the beginning and 109.4MB in the end (delta: -19.2MB). Peak memory consumption was 137.6MB. Max. memory is 16.1GB. [2023-12-03 02:27:13,540 INFO L158 Benchmark]: Boogie Procedure Inliner took 2288.86ms. Allocated memory was 278.9MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 109.4MB in the beginning and 825.5MB in the end (delta: -716.1MB). Peak memory consumption was 432.0MB. Max. memory is 16.1GB. [2023-12-03 02:27:13,541 INFO L158 Benchmark]: Boogie Preprocessor took 1809.57ms. Allocated memory is still 1.3GB. Free memory was 825.5MB in the beginning and 631.6MB in the end (delta: 194.0MB). Peak memory consumption was 220.2MB. Max. memory is 16.1GB. [2023-12-03 02:27:13,542 INFO L158 Benchmark]: RCFGBuilder took 72155.41ms. Allocated memory was 1.3GB in the beginning and 9.5GB in the end (delta: 8.2GB). Free memory was 631.6MB in the beginning and 7.8GB in the end (delta: -7.2GB). Peak memory consumption was 4.2GB. Max. memory is 16.1GB. [2023-12-03 02:27:13,542 INFO L158 Benchmark]: CodeCheck took 103094.64ms. Allocated memory is still 9.5GB. Free memory was 7.8GB in the beginning and 7.7GB in the end (delta: 69.5MB). Peak memory consumption was 748.5MB. Max. memory is 16.1GB. [2023-12-03 02:27:13,545 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 138.4MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1900.55ms. Allocated memory was 138.4MB in the beginning and 278.9MB in the end (delta: 140.5MB). Free memory was 90.2MB in the beginning and 109.4MB in the end (delta: -19.2MB). Peak memory consumption was 137.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 2288.86ms. Allocated memory was 278.9MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 109.4MB in the beginning and 825.5MB in the end (delta: -716.1MB). Peak memory consumption was 432.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1809.57ms. Allocated memory is still 1.3GB. Free memory was 825.5MB in the beginning and 631.6MB in the end (delta: 194.0MB). Peak memory consumption was 220.2MB. Max. memory is 16.1GB. * RCFGBuilder took 72155.41ms. Allocated memory was 1.3GB in the beginning and 9.5GB in the end (delta: 8.2GB). Free memory was 631.6MB in the beginning and 7.8GB in the end (delta: -7.2GB). Peak memory consumption was 4.2GB. Max. memory is 16.1GB. * CodeCheck took 103094.64ms. Allocated memory is still 9.5GB. Free memory was 7.8GB in the beginning and 7.7GB in the end (delta: 69.5MB). Peak memory consumption was 748.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 02:27:13,756 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-03 02:27:13,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9 --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 89fa5bcee0b87baa8fdcd504d33e57009a693bf03fe212b3e5e783c0c5f361d6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:27:15,923 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:27:15,995 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-03 02:27:16,023 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:27:16,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:27:16,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:27:16,026 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:27:16,026 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:27:16,027 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:27:16,027 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:27:16,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:27:16,028 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:27:16,029 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:27:16,029 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:27:16,030 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 02:27:16,030 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 02:27:16,031 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 02:27:16,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:27:16,032 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:27:16,033 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:27:16,033 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:27:16,034 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:27:16,034 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 02:27:16,035 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 02:27:16,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:27:16,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:27:16,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:27:16,037 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:27:16,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:27:16,038 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 02:27:16,038 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 02:27:16,038 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:27:16,039 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 02:27:16,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 02:27:16,039 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89fa5bcee0b87baa8fdcd504d33e57009a693bf03fe212b3e5e783c0c5f361d6 [2023-12-03 02:27:16,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:27:16,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:27:16,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:27:16,346 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:27:16,347 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:27:16,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c [2023-12-03 02:27:19,135 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:27:19,569 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:27:19,570 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c [2023-12-03 02:27:19,600 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/data/17e54852e/f8cb078bb4674e12827a1fbc39ccbc7a/FLAG9073f2bac [2023-12-03 02:27:19,614 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/data/17e54852e/f8cb078bb4674e12827a1fbc39ccbc7a [2023-12-03 02:27:19,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:27:19,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:27:19,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:27:19,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:27:19,624 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:27:19,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:27:19" (1/1) ... [2023-12-03 02:27:19,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f8e8de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:27:19, skipping insertion in model container [2023-12-03 02:27:19,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:27:19" (1/1) ... [2023-12-03 02:27:19,779 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:27:20,028 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_400c60d9-74cc-48ab-9d81-6805da249957/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c[1177,1190] [2023-12-03 02:27:20,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:27:20,682 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:27:20,694 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_400c60d9-74cc-48ab-9d81-6805da249957/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c[1177,1190] [2023-12-03 02:27:21,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:27:21,052 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:27:21,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:27:21 WrapperNode [2023-12-03 02:27:21,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:27:21,053 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:27:21,053 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:27:21,053 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:27:21,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:27:21" (1/1) ... [2023-12-03 02:27:21,134 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:27:21" (1/1) ... [2023-12-03 02:27:21,403 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 7788 [2023-12-03 02:27:21,403 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:27:21,404 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:27:21,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:27:21,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:27:21,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:27:21" (1/1) ... [2023-12-03 02:27:21,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:27:21" (1/1) ... [2023-12-03 02:27:21,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:27:21" (1/1) ... [2023-12-03 02:27:21,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:27:21" (1/1) ... [2023-12-03 02:27:21,636 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:27:21" (1/1) ... [2023-12-03 02:27:21,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:27:21" (1/1) ... [2023-12-03 02:27:21,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:27:21" (1/1) ... [2023-12-03 02:27:21,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:27:21" (1/1) ... [2023-12-03 02:27:21,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:27:21,819 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:27:21,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:27:21,819 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:27:21,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:27:21" (1/1) ... [2023-12-03 02:27:21,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:27:21,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:27:21,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:27:21,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:27:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:27:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 02:27:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:27:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:27:22,926 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:27:22,928 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:27:49,229 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:27:49,519 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:27:49,519 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 02:27:49,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:27:49 BoogieIcfgContainer [2023-12-03 02:27:49,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:27:49,521 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:27:49,521 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:27:49,529 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:27:49,529 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:27:49" (1/1) ... [2023-12-03 02:27:49,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:27:49,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:27:49,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 02:27:49,580 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 02:27:49,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 02:27:49,582 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:27:49,582 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:27:49,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:27:49,584 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:27:49,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 02:27:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:27:51,543 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:27:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:27:52,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 02:27:52,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:27:52,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:27:52,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 02:28:03,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:28:05,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:28:06,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:28:06,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-03 02:28:06,320 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-03 02:28:06,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 02:28:06,320 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:28:06,320 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:28:06,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:28:06,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:28:06,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 02:28:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:28:13,962 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:28:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:28:16,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 6596 conjuncts, 157 conjunts are in the unsatisfiable core [2023-12-03 02:28:16,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:28:18,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:28:18,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 02:28:29,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:28:40,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:28:53,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:28:54,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:29:07,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:29:19,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:29:25,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.48s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:29:25,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:29:25,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-03 02:29:25,979 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-03 02:29:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 02:29:25,981 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:29:25,981 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:29:25,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:29:25,983 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:29:25,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400c60d9-74cc-48ab-9d81-6805da249957/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 02:32:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:32:33,703 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:32:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:32:39,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 12548 conjuncts, 984 conjunts are in the unsatisfiable core [2023-12-03 02:32:39,134 INFO L285 TraceCheckSpWp]: Computing forward predicates...