./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.8.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/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_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.8.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/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_281e199a-aab4-4455-b25c-3f99e52ff9a8/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 9c134e287fd10e9efa4b2a4471cd935eb5ab0fbf1e8876c7d3b97d4a8229b3cd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:27:22,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:27:22,877 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-02 23:27:22,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:27:22,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:27:22,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:27:22,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:27:22,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:27:22,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:27:22,906 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:27:22,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:27:22,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:27:22,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:27:22,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:27:22,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:27:22,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:27:22,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:27:22,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:27:22,911 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:27:22,912 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:27:22,912 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:27:22,915 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:27:22,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:27:22,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:27:22,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:27:22,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:27:22,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:27:22,918 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:27:22,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:27:22,918 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:27:22,919 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_281e199a-aab4-4455-b25c-3f99e52ff9a8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c134e287fd10e9efa4b2a4471cd935eb5ab0fbf1e8876c7d3b97d4a8229b3cd [2023-12-02 23:27:23,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:27:23,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:27:23,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:27:23,164 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:27:23,164 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:27:23,165 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.8.prop1-back-serstep.c [2023-12-02 23:27:25,880 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:27:26,255 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:27:26,256 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.8.prop1-back-serstep.c [2023-12-02 23:27:26,288 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/data/a4198325f/5d58fd7f69f1437db29139685b13b153/FLAGd35be7023 [2023-12-02 23:27:26,302 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/data/a4198325f/5d58fd7f69f1437db29139685b13b153 [2023-12-02 23:27:26,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:27:26,306 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:27:26,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:27:26,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:27:26,312 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:27:26,313 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:27:26" (1/1) ... [2023-12-02 23:27:26,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f12ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:26, skipping insertion in model container [2023-12-02 23:27:26,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:27:26" (1/1) ... [2023-12-02 23:27:26,472 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:27:26,718 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_281e199a-aab4-4455-b25c-3f99e52ff9a8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.8.prop1-back-serstep.c[1177,1190] [2023-12-02 23:27:27,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:27:27,596 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:27:27,608 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_281e199a-aab4-4455-b25c-3f99e52ff9a8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.8.prop1-back-serstep.c[1177,1190] [2023-12-02 23:27:28,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:27:28,310 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:27:28,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:28 WrapperNode [2023-12-02 23:27:28,311 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:27:28,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:27:28,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:27:28,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:27:28,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:28" (1/1) ... [2023-12-02 23:27:28,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:28" (1/1) ... [2023-12-02 23:27:30,703 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32658 [2023-12-02 23:27:30,703 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:27:30,704 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:27:30,704 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:27:30,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:27:30,711 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:28" (1/1) ... [2023-12-02 23:27:30,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:28" (1/1) ... [2023-12-02 23:27:31,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:28" (1/1) ... [2023-12-02 23:27:31,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:28" (1/1) ... [2023-12-02 23:27:31,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:28" (1/1) ... [2023-12-02 23:27:31,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:28" (1/1) ... [2023-12-02 23:27:32,040 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:28" (1/1) ... [2023-12-02 23:27:32,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:28" (1/1) ... [2023-12-02 23:27:32,695 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:27:32,696 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:27:32,696 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:27:32,697 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:27:32,697 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:27:28" (1/1) ... [2023-12-02 23:27:32,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:27:32,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:27:32,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:27:32,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:27:32,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:27:32,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:27:32,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:27:32,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:27:34,059 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:27:34,061 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:27:50,318 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:28:49,945 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:28:49,945 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:28:49,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:28:49 BoogieIcfgContainer [2023-12-02 23:28:49,946 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:28:49,947 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:28:49,947 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:28:49,955 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:28:49,955 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:28:49" (1/1) ... [2023-12-02 23:28:49,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:28:50,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:28:50,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 23:28:50,008 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 23:28:50,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 23:28:50,010 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:28:50,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:28:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:29:05,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:29:17,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 23:29:27,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 23:29:38,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:29:48,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:29:51,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:29:59,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:30:09,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:30:09,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:30:09,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-02 23:30:09,280 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-02 23:30:09,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:30:09,280 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:30:09,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:30:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 23:30:24,370 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) [2023-12-02 23:30:24,373 INFO L158 Benchmark]: Toolchain (without parser) took 178067.01ms. Allocated memory was 148.9MB in the beginning and 8.8GB in the end (delta: 8.6GB). Free memory was 92.8MB in the beginning and 6.9GB in the end (delta: -6.8GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2023-12-02 23:30:24,374 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 148.9MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:30:24,374 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2003.83ms. Allocated memory was 148.9MB in the beginning and 308.3MB in the end (delta: 159.4MB). Free memory was 92.8MB in the beginning and 145.8MB in the end (delta: -53.0MB). Peak memory consumption was 173.5MB. Max. memory is 16.1GB. [2023-12-02 23:30:24,375 INFO L158 Benchmark]: Boogie Procedure Inliner took 2391.53ms. Allocated memory was 308.3MB in the beginning and 1.2GB in the end (delta: 847.2MB). Free memory was 145.8MB in the beginning and 667.2MB in the end (delta: -521.4MB). Peak memory consumption was 519.8MB. Max. memory is 16.1GB. [2023-12-02 23:30:24,376 INFO L158 Benchmark]: Boogie Preprocessor took 1991.56ms. Allocated memory was 1.2GB in the beginning and 3.5GB in the end (delta: 2.3GB). Free memory was 667.2MB in the beginning and 2.8GB in the end (delta: -2.1GB). Peak memory consumption was 287.3MB. Max. memory is 16.1GB. [2023-12-02 23:30:24,376 INFO L158 Benchmark]: RCFGBuilder took 77250.19ms. Allocated memory was 3.5GB in the beginning and 8.8GB in the end (delta: 5.3GB). Free memory was 2.8GB in the beginning and 6.7GB in the end (delta: -3.9GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. [2023-12-02 23:30:24,377 INFO L158 Benchmark]: CodeCheck took 94425.12ms. Allocated memory is still 8.8GB. Free memory was 6.7GB in the beginning and 6.9GB in the end (delta: -285.4MB). Peak memory consumption was 504.4MB. Max. memory is 16.1GB. [2023-12-02 23:30:24,382 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 0.22ms. Allocated memory is still 148.9MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2003.83ms. Allocated memory was 148.9MB in the beginning and 308.3MB in the end (delta: 159.4MB). Free memory was 92.8MB in the beginning and 145.8MB in the end (delta: -53.0MB). Peak memory consumption was 173.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 2391.53ms. Allocated memory was 308.3MB in the beginning and 1.2GB in the end (delta: 847.2MB). Free memory was 145.8MB in the beginning and 667.2MB in the end (delta: -521.4MB). Peak memory consumption was 519.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1991.56ms. Allocated memory was 1.2GB in the beginning and 3.5GB in the end (delta: 2.3GB). Free memory was 667.2MB in the beginning and 2.8GB in the end (delta: -2.1GB). Peak memory consumption was 287.3MB. Max. memory is 16.1GB. * RCFGBuilder took 77250.19ms. Allocated memory was 3.5GB in the beginning and 8.8GB in the end (delta: 5.3GB). Free memory was 2.8GB in the beginning and 6.7GB in the end (delta: -3.9GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. * CodeCheck took 94425.12ms. Allocated memory is still 8.8GB. Free memory was 6.7GB in the beginning and 6.9GB in the end (delta: -285.4MB). Peak memory consumption was 504.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 23:30:24,595 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-02 23:30:24,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/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_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.8.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/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_281e199a-aab4-4455-b25c-3f99e52ff9a8/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 9c134e287fd10e9efa4b2a4471cd935eb5ab0fbf1e8876c7d3b97d4a8229b3cd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:30:26,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:30:26,757 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-02 23:30:26,789 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:30:26,790 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:30:26,791 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:30:26,792 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:30:26,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:30:26,793 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:30:26,793 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:30:26,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:30:26,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:30:26,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:30:26,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:30:26,796 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 23:30:26,797 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 23:30:26,797 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 23:30:26,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:30:26,798 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:30:26,799 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:30:26,799 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:30:26,801 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:30:26,802 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:30:26,802 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 23:30:26,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:30:26,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:30:26,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:30:26,804 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:30:26,804 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:30:26,805 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 23:30:26,805 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:30:26,806 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:30:26,806 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 23:30:26,806 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 23:30:26,807 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_281e199a-aab4-4455-b25c-3f99e52ff9a8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c134e287fd10e9efa4b2a4471cd935eb5ab0fbf1e8876c7d3b97d4a8229b3cd [2023-12-02 23:30:27,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:30:27,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:30:27,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:30:27,144 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:30:27,144 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:30:27,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.8.prop1-back-serstep.c [2023-12-02 23:30:30,002 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:30:30,455 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:30:30,456 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.8.prop1-back-serstep.c [2023-12-02 23:30:30,488 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/data/5462fe211/05fa181e1e7f4dc9b6af6db302cec9c8/FLAG3193382ad [2023-12-02 23:30:30,503 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/data/5462fe211/05fa181e1e7f4dc9b6af6db302cec9c8 [2023-12-02 23:30:30,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:30:30,507 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:30:30,508 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:30:30,509 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:30:30,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:30:30,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:30:30" (1/1) ... [2023-12-02 23:30:30,516 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a6faa28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:30, skipping insertion in model container [2023-12-02 23:30:30,516 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:30:30" (1/1) ... [2023-12-02 23:30:30,666 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:30:30,939 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_281e199a-aab4-4455-b25c-3f99e52ff9a8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.8.prop1-back-serstep.c[1177,1190] [2023-12-02 23:30:31,604 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:30:31,616 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:30:31,628 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_281e199a-aab4-4455-b25c-3f99e52ff9a8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.8.prop1-back-serstep.c[1177,1190] [2023-12-02 23:30:32,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:30:32,109 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:30:32,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:32 WrapperNode [2023-12-02 23:30:32,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:30:32,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:30:32,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:30:32,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:30:32,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:32" (1/1) ... [2023-12-02 23:30:32,223 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:32" (1/1) ... [2023-12-02 23:30:32,556 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 8604 [2023-12-02 23:30:32,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:30:32,558 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:30:32,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:30:32,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:30:32,570 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:32" (1/1) ... [2023-12-02 23:30:32,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:32" (1/1) ... [2023-12-02 23:30:32,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:32" (1/1) ... [2023-12-02 23:30:32,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:32" (1/1) ... [2023-12-02 23:30:32,777 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:32" (1/1) ... [2023-12-02 23:30:32,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:32" (1/1) ... [2023-12-02 23:30:32,820 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:32" (1/1) ... [2023-12-02 23:30:32,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:32" (1/1) ... [2023-12-02 23:30:32,887 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:30:32,888 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:30:32,888 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:30:32,888 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:30:32,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:30:32" (1/1) ... [2023-12-02 23:30:32,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:30:32,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:30:32,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:30:32,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:30:32,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:30:32,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 23:30:32,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:30:32,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:30:34,034 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:30:34,035 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:31:08,036 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:31:08,379 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:31:08,379 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:31:08,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:31:08 BoogieIcfgContainer [2023-12-02 23:31:08,381 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:31:08,382 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:31:08,382 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:31:08,389 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:31:08,389 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:31:08" (1/1) ... [2023-12-02 23:31:08,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:31:08,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:31:08,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 23:31:08,444 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 23:31:08,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 23:31:08,446 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:31:08,447 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:31:08,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:31:08,467 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:31:08,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 23:31:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:31:10,423 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:31:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:31:11,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 23:31:11,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:31:11,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:31:11,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 23:31:22,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:31:32,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:31:32,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:31:32,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-02 23:31:32,997 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-02 23:31:32,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:31:32,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:31:32,997 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:31:32,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:31:32,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:31:33,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 23:31:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:31:41,481 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:31:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:31:44,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 7297 conjuncts, 165 conjunts are in the unsatisfiable core [2023-12-02 23:31:44,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:31:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:31:46,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 23:31:57,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:32:08,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:32:21,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:32:31,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:32:32,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:32:45,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:32:56,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:33:06,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.98s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:33:07,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:07,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-02 23:33:07,216 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-02 23:33:07,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:33:07,218 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:07,219 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:33:07,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:33:07,220 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:33:07,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281e199a-aab4-4455-b25c-3f99e52ff9a8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 23:36:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:24,760 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:36:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:32,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 13906 conjuncts, 1059 conjunts are in the unsatisfiable core [2023-12-02 23:36:32,919 INFO L285 TraceCheckSpWp]: Computing forward predicates...