./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 217c4f5eefa3b0856788b7ca9679c9bd3ae2e76dd46c0382e56b3111181a98a9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:46:50,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:46:50,602 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-11-19 02:46:50,615 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:46:50,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:46:50,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:46:50,665 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:46:50,665 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:46:50,666 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:46:50,671 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:46:50,672 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:46:50,672 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:46:50,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:46:50,674 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:46:50,675 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:46:50,675 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:46:50,676 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:46:50,676 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:46:50,677 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:46:50,677 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:46:50,677 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:46:50,678 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:46:50,679 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:46:50,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:46:50,680 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:46:50,680 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:46:50,681 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:46:50,681 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:46:50,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:46:50,682 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:46:50,683 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_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 217c4f5eefa3b0856788b7ca9679c9bd3ae2e76dd46c0382e56b3111181a98a9 [2023-11-19 02:46:50,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:46:51,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:46:51,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:46:51,021 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:46:51,023 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:46:51,025 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c [2023-11-19 02:46:54,221 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:46:54,720 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:46:54,721 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c [2023-11-19 02:46:54,741 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/data/51f5a58cb/98b12b1a5aa6402bae5d72fe97a94e2b/FLAG254f22998 [2023-11-19 02:46:54,763 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/data/51f5a58cb/98b12b1a5aa6402bae5d72fe97a94e2b [2023-11-19 02:46:54,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:46:54,773 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:46:54,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:46:54,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:46:54,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:46:54,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:46:54" (1/1) ... [2023-11-19 02:46:54,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6939772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:54, skipping insertion in model container [2023-11-19 02:46:54,791 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:46:54" (1/1) ... [2023-11-19 02:46:54,842 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:46:55,024 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_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c[1245,1258] [2023-11-19 02:46:55,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:46:55,298 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:46:55,310 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_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c[1245,1258] [2023-11-19 02:46:55,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:46:55,471 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:46:55,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:55 WrapperNode [2023-11-19 02:46:55,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:46:55,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:46:55,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:46:55,486 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:46:55,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:55" (1/1) ... [2023-11-19 02:46:55,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:55" (1/1) ... [2023-11-19 02:46:55,857 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2809 [2023-11-19 02:46:55,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:46:55,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:46:55,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:46:55,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:46:55,869 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:55" (1/1) ... [2023-11-19 02:46:55,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:55" (1/1) ... [2023-11-19 02:46:55,925 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:55" (1/1) ... [2023-11-19 02:46:55,925 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:55" (1/1) ... [2023-11-19 02:46:56,023 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:55" (1/1) ... [2023-11-19 02:46:56,058 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:55" (1/1) ... [2023-11-19 02:46:56,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:55" (1/1) ... [2023-11-19 02:46:56,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:55" (1/1) ... [2023-11-19 02:46:56,130 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:46:56,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:46:56,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:46:56,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:46:56,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:55" (1/1) ... [2023-11-19 02:46:56,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:46:56,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:46:56,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:46:56,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:46:56,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:46:56,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:46:56,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:46:56,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:46:56,578 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:46:56,581 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:46:59,358 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:47:04,790 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:47:04,791 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:47:04,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:04 BoogieIcfgContainer [2023-11-19 02:47:04,797 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:47:04,798 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:47:04,798 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:47:04,808 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:47:04,808 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:04" (1/1) ... [2023-11-19 02:47:04,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:47:04,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:47:04,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-19 02:47:04,885 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-19 02:47:04,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:47:04,887 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:47:04,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:47:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:47:05,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:47:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:47:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:47:05,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:47:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:47:05,903 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 02:47:05,934 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 02:47:05,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:47:05 ImpRootNode [2023-11-19 02:47:05,940 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:47:05,940 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:47:05,941 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:47:05,941 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:47:05,942 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:04" (3/4) ... [2023-11-19 02:47:05,944 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:47:05,945 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:47:05,946 INFO L158 Benchmark]: Toolchain (without parser) took 11173.50ms. Allocated memory was 157.3MB in the beginning and 750.8MB in the end (delta: 593.5MB). Free memory was 125.6MB in the beginning and 303.5MB in the end (delta: -177.9MB). Peak memory consumption was 416.7MB. Max. memory is 16.1GB. [2023-11-19 02:47:05,947 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:47:05,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 706.73ms. Allocated memory is still 157.3MB. Free memory was 125.1MB in the beginning and 88.9MB in the end (delta: 36.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-19 02:47:05,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 372.52ms. Allocated memory was 157.3MB in the beginning and 211.8MB in the end (delta: 54.5MB). Free memory was 88.9MB in the beginning and 142.5MB in the end (delta: -53.6MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2023-11-19 02:47:05,949 INFO L158 Benchmark]: Boogie Preprocessor took 271.96ms. Allocated memory is still 211.8MB. Free memory was 142.5MB in the beginning and 124.7MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 02:47:05,950 INFO L158 Benchmark]: RCFGBuilder took 8664.71ms. Allocated memory was 211.8MB in the beginning and 750.8MB in the end (delta: 539.0MB). Free memory was 124.7MB in the beginning and 353.8MB in the end (delta: -229.1MB). Peak memory consumption was 425.2MB. Max. memory is 16.1GB. [2023-11-19 02:47:05,951 INFO L158 Benchmark]: CodeCheck took 1142.41ms. Allocated memory is still 750.8MB. Free memory was 353.8MB in the beginning and 303.5MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2023-11-19 02:47:05,951 INFO L158 Benchmark]: Witness Printer took 4.85ms. Allocated memory is still 750.8MB. Free memory is still 303.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:47:05,955 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 141. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 8); [L30] const SORT_5 msb_SORT_5 = (SORT_5)1 << (8 - 1); [L32] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 32); [L33] const SORT_9 msb_SORT_9 = (SORT_9)1 << (32 - 1); [L35] const SORT_161 mask_SORT_161 = (SORT_161)-1 >> (sizeof(SORT_161) * 8 - 2); [L36] const SORT_161 msb_SORT_161 = (SORT_161)1 << (2 - 1); [L38] const SORT_163 mask_SORT_163 = (SORT_163)-1 >> (sizeof(SORT_163) * 8 - 3); [L39] const SORT_163 msb_SORT_163 = (SORT_163)1 << (3 - 1); [L41] const SORT_165 mask_SORT_165 = (SORT_165)-1 >> (sizeof(SORT_165) * 8 - 4); [L42] const SORT_165 msb_SORT_165 = (SORT_165)1 << (4 - 1); [L44] const SORT_167 mask_SORT_167 = (SORT_167)-1 >> (sizeof(SORT_167) * 8 - 5); [L45] const SORT_167 msb_SORT_167 = (SORT_167)1 << (5 - 1); [L47] const SORT_169 mask_SORT_169 = (SORT_169)-1 >> (sizeof(SORT_169) * 8 - 6); [L48] const SORT_169 msb_SORT_169 = (SORT_169)1 << (6 - 1); [L50] const SORT_171 mask_SORT_171 = (SORT_171)-1 >> (sizeof(SORT_171) * 8 - 7); [L51] const SORT_171 msb_SORT_171 = (SORT_171)1 << (7 - 1); [L53] const SORT_174 mask_SORT_174 = (SORT_174)-1 >> (sizeof(SORT_174) * 8 - 9); [L54] const SORT_174 msb_SORT_174 = (SORT_174)1 << (9 - 1); [L56] const SORT_176 mask_SORT_176 = (SORT_176)-1 >> (sizeof(SORT_176) * 8 - 10); [L57] const SORT_176 msb_SORT_176 = (SORT_176)1 << (10 - 1); [L59] const SORT_178 mask_SORT_178 = (SORT_178)-1 >> (sizeof(SORT_178) * 8 - 11); [L60] const SORT_178 msb_SORT_178 = (SORT_178)1 << (11 - 1); [L62] const SORT_180 mask_SORT_180 = (SORT_180)-1 >> (sizeof(SORT_180) * 8 - 12); [L63] const SORT_180 msb_SORT_180 = (SORT_180)1 << (12 - 1); [L65] const SORT_182 mask_SORT_182 = (SORT_182)-1 >> (sizeof(SORT_182) * 8 - 13); [L66] const SORT_182 msb_SORT_182 = (SORT_182)1 << (13 - 1); [L68] const SORT_184 mask_SORT_184 = (SORT_184)-1 >> (sizeof(SORT_184) * 8 - 14); [L69] const SORT_184 msb_SORT_184 = (SORT_184)1 << (14 - 1); [L71] const SORT_186 mask_SORT_186 = (SORT_186)-1 >> (sizeof(SORT_186) * 8 - 15); [L72] const SORT_186 msb_SORT_186 = (SORT_186)1 << (15 - 1); [L74] const SORT_188 mask_SORT_188 = (SORT_188)-1 >> (sizeof(SORT_188) * 8 - 16); [L75] const SORT_188 msb_SORT_188 = (SORT_188)1 << (16 - 1); [L77] const SORT_190 mask_SORT_190 = (SORT_190)-1 >> (sizeof(SORT_190) * 8 - 17); [L78] const SORT_190 msb_SORT_190 = (SORT_190)1 << (17 - 1); [L80] const SORT_192 mask_SORT_192 = (SORT_192)-1 >> (sizeof(SORT_192) * 8 - 18); [L81] const SORT_192 msb_SORT_192 = (SORT_192)1 << (18 - 1); [L83] const SORT_194 mask_SORT_194 = (SORT_194)-1 >> (sizeof(SORT_194) * 8 - 19); [L84] const SORT_194 msb_SORT_194 = (SORT_194)1 << (19 - 1); [L86] const SORT_196 mask_SORT_196 = (SORT_196)-1 >> (sizeof(SORT_196) * 8 - 20); [L87] const SORT_196 msb_SORT_196 = (SORT_196)1 << (20 - 1); [L89] const SORT_198 mask_SORT_198 = (SORT_198)-1 >> (sizeof(SORT_198) * 8 - 21); [L90] const SORT_198 msb_SORT_198 = (SORT_198)1 << (21 - 1); [L92] const SORT_200 mask_SORT_200 = (SORT_200)-1 >> (sizeof(SORT_200) * 8 - 22); [L93] const SORT_200 msb_SORT_200 = (SORT_200)1 << (22 - 1); [L95] const SORT_202 mask_SORT_202 = (SORT_202)-1 >> (sizeof(SORT_202) * 8 - 23); [L96] const SORT_202 msb_SORT_202 = (SORT_202)1 << (23 - 1); [L98] const SORT_204 mask_SORT_204 = (SORT_204)-1 >> (sizeof(SORT_204) * 8 - 24); [L99] const SORT_204 msb_SORT_204 = (SORT_204)1 << (24 - 1); [L101] const SORT_206 mask_SORT_206 = (SORT_206)-1 >> (sizeof(SORT_206) * 8 - 25); [L102] const SORT_206 msb_SORT_206 = (SORT_206)1 << (25 - 1); [L104] const SORT_208 mask_SORT_208 = (SORT_208)-1 >> (sizeof(SORT_208) * 8 - 26); [L105] const SORT_208 msb_SORT_208 = (SORT_208)1 << (26 - 1); [L107] const SORT_210 mask_SORT_210 = (SORT_210)-1 >> (sizeof(SORT_210) * 8 - 27); [L108] const SORT_210 msb_SORT_210 = (SORT_210)1 << (27 - 1); [L110] const SORT_212 mask_SORT_212 = (SORT_212)-1 >> (sizeof(SORT_212) * 8 - 28); [L111] const SORT_212 msb_SORT_212 = (SORT_212)1 << (28 - 1); [L113] const SORT_214 mask_SORT_214 = (SORT_214)-1 >> (sizeof(SORT_214) * 8 - 29); [L114] const SORT_214 msb_SORT_214 = (SORT_214)1 << (29 - 1); [L116] const SORT_216 mask_SORT_216 = (SORT_216)-1 >> (sizeof(SORT_216) * 8 - 30); [L117] const SORT_216 msb_SORT_216 = (SORT_216)1 << (30 - 1); [L119] const SORT_218 mask_SORT_218 = (SORT_218)-1 >> (sizeof(SORT_218) * 8 - 31); [L120] const SORT_218 msb_SORT_218 = (SORT_218)1 << (31 - 1); [L122] const SORT_9 var_10 = 4294967295; [L123] const SORT_9 var_13 = 2863311530; [L124] const SORT_1 var_17 = 1; [L126] SORT_1 input_2; [L127] SORT_1 input_3; [L128] SORT_1 input_4; [L129] SORT_5 input_6; [L130] SORT_1 input_7; [L131] SORT_1 input_8; [L133] EXPR __VERIFIER_nondet_uint() & mask_SORT_9 [L133] SORT_9 state_11 = __VERIFIER_nondet_uint() & mask_SORT_9; [L135] SORT_9 init_12_arg_1 = var_10; [L136] state_11 = init_12_arg_1 VAL [init_12_arg_1=4294967295, mask_SORT_161=3, mask_SORT_163=7, mask_SORT_165=15, mask_SORT_167=31, mask_SORT_169=63, mask_SORT_171=127, mask_SORT_174=511, mask_SORT_176=1023, mask_SORT_178=2047, mask_SORT_180=4095, mask_SORT_182=8191, mask_SORT_184=16383, mask_SORT_186=32767, mask_SORT_188=65535, mask_SORT_190=131071, mask_SORT_192=262143, mask_SORT_194=524287, mask_SORT_196=1048575, mask_SORT_198=2097151, mask_SORT_1=1, mask_SORT_200=4194303, mask_SORT_202=8388607, mask_SORT_204=16777215, mask_SORT_206=33554431, mask_SORT_208=67108863, mask_SORT_210=134217727, mask_SORT_212=268435455, mask_SORT_214=536870911, mask_SORT_216=1073741823, mask_SORT_218=2147483647, mask_SORT_5=255, mask_SORT_9=4294967295, msb_SORT_161=2, msb_SORT_163=4, msb_SORT_165=8, msb_SORT_167=16, msb_SORT_169=32, msb_SORT_171=64, msb_SORT_174=256, msb_SORT_176=512, msb_SORT_178=1024, msb_SORT_180=2048, msb_SORT_182=4096, msb_SORT_184=8192, msb_SORT_186=16384, msb_SORT_188=32768, msb_SORT_190=65536, msb_SORT_192=131072, msb_SORT_194=262144, msb_SORT_196=524288, msb_SORT_198=1048576, msb_SORT_1=1, msb_SORT_200=2097152, msb_SORT_202=4194304, msb_SORT_204=8388608, msb_SORT_206=16777216, msb_SORT_208=33554432, msb_SORT_210=67108864, msb_SORT_212=134217728, msb_SORT_214=268435456, msb_SORT_216=536870912, msb_SORT_218=1073741824, msb_SORT_5=128, msb_SORT_9=2147483648, state_11=4294967295, var_10=4294967295, var_13=2863311530, var_17=1] [L139] input_2 = __VERIFIER_nondet_uchar() [L140] input_3 = __VERIFIER_nondet_uchar() [L141] EXPR input_3 & mask_SORT_1 [L141] input_3 = input_3 & mask_SORT_1 [L142] input_4 = __VERIFIER_nondet_uchar() [L143] EXPR input_4 & mask_SORT_1 [L143] input_4 = input_4 & mask_SORT_1 [L144] input_6 = __VERIFIER_nondet_uchar() [L145] EXPR input_6 & mask_SORT_5 [L145] input_6 = input_6 & mask_SORT_5 [L146] input_7 = __VERIFIER_nondet_uchar() [L147] EXPR input_7 & mask_SORT_1 [L147] input_7 = input_7 & mask_SORT_1 [L148] input_8 = __VERIFIER_nondet_uchar() [L149] EXPR input_8 & mask_SORT_1 [L149] input_8 = input_8 & mask_SORT_1 [L152] SORT_9 var_14_arg_0 = state_11; [L153] SORT_9 var_14_arg_1 = var_13; [L154] SORT_1 var_14 = var_14_arg_0 != var_14_arg_1; [L155] SORT_1 var_18_arg_0 = var_14; [L156] SORT_1 var_18 = ~var_18_arg_0; [L157] SORT_1 var_19_arg_0 = var_17; [L158] SORT_1 var_19_arg_1 = var_18; [L159] EXPR var_19_arg_0 & var_19_arg_1 [L159] SORT_1 var_19 = var_19_arg_0 & var_19_arg_1; [L160] EXPR var_19 & mask_SORT_1 [L160] var_19 = var_19 & mask_SORT_1 [L161] SORT_1 bad_20_arg_0 = var_19; [L162] CALL __VERIFIER_assert(!(bad_20_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 706.73ms. Allocated memory is still 157.3MB. Free memory was 125.1MB in the beginning and 88.9MB in the end (delta: 36.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 372.52ms. Allocated memory was 157.3MB in the beginning and 211.8MB in the end (delta: 54.5MB). Free memory was 88.9MB in the beginning and 142.5MB in the end (delta: -53.6MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 271.96ms. Allocated memory is still 211.8MB. Free memory was 142.5MB in the beginning and 124.7MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 8664.71ms. Allocated memory was 211.8MB in the beginning and 750.8MB in the end (delta: 539.0MB). Free memory was 124.7MB in the beginning and 353.8MB in the end (delta: -229.1MB). Peak memory consumption was 425.2MB. Max. memory is 16.1GB. * CodeCheck took 1142.41ms. Allocated memory is still 750.8MB. Free memory was 353.8MB in the beginning and 303.5MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 4.85ms. Allocated memory is still 750.8MB. Free memory is still 303.5MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 02:47:05,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 217c4f5eefa3b0856788b7ca9679c9bd3ae2e76dd46c0382e56b3111181a98a9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:47:08,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:47:08,770 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-11-19 02:47:08,804 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:47:08,805 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:47:08,806 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:47:08,807 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:47:08,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:47:08,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:47:08,809 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:47:08,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:47:08,810 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:47:08,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:47:08,811 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:47:08,811 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 02:47:08,812 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 02:47:08,813 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 02:47:08,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:47:08,814 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:47:08,814 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:47:08,815 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:47:08,816 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:47:08,816 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:47:08,817 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 02:47:08,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:47:08,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:47:08,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:47:08,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:47:08,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:47:08,820 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 02:47:08,821 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:47:08,821 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:47:08,822 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 02:47:08,822 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 02:47:08,823 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_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 217c4f5eefa3b0856788b7ca9679c9bd3ae2e76dd46c0382e56b3111181a98a9 [2023-11-19 02:47:09,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:47:09,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:47:09,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:47:09,276 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:47:09,276 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:47:09,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c [2023-11-19 02:47:12,315 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:47:12,679 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:47:12,679 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c [2023-11-19 02:47:12,695 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/data/b6759b56b/106e116bdaac47c7b483a550beb4d7f2/FLAGd8c1363db [2023-11-19 02:47:12,708 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/data/b6759b56b/106e116bdaac47c7b483a550beb4d7f2 [2023-11-19 02:47:12,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:47:12,712 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:47:12,714 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:47:12,714 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:47:12,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:47:12,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:12" (1/1) ... [2023-11-19 02:47:12,721 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58da83ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:12, skipping insertion in model container [2023-11-19 02:47:12,721 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:12" (1/1) ... [2023-11-19 02:47:12,772 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:47:12,962 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_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c[1245,1258] [2023-11-19 02:47:13,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:47:13,217 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:47:13,230 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_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c[1245,1258] [2023-11-19 02:47:13,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:47:13,439 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:47:13,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13 WrapperNode [2023-11-19 02:47:13,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:47:13,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:47:13,442 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:47:13,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:47:13,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2023-11-19 02:47:13,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2023-11-19 02:47:13,585 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 676 [2023-11-19 02:47:13,598 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:47:13,599 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:47:13,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:47:13,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:47:13,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2023-11-19 02:47:13,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2023-11-19 02:47:13,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2023-11-19 02:47:13,618 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2023-11-19 02:47:13,663 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2023-11-19 02:47:13,677 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2023-11-19 02:47:13,682 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2023-11-19 02:47:13,687 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2023-11-19 02:47:13,698 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:47:13,699 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:47:13,699 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:47:13,699 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:47:13,700 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:13" (1/1) ... [2023-11-19 02:47:13,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:47:13,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:47:13,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:47:13,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:47:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:47:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 02:47:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:47:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:47:14,023 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:47:14,025 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:47:14,895 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:47:14,975 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:47:14,975 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:47:14,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:14 BoogieIcfgContainer [2023-11-19 02:47:14,980 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:47:14,981 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:47:14,981 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:47:14,991 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:47:14,992 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:14" (1/1) ... [2023-11-19 02:47:15,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:47:15,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:47:15,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-19 02:47:15,071 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-19 02:47:15,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:47:15,076 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:47:15,077 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:47:15,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:47:15,080 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:47:15,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 02:47:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:47:15,436 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:47:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:47:15,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 02:47:15,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:47:15,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:47:15,850 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:47:15,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 02:47:16,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:47:16,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-11-19 02:47:16,034 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-11-19 02:47:16,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:47:16,035 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:47:16,035 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:47:16,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:47:16,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:47:16,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 02:47:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:47:16,692 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:47:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:47:16,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 125 conjunts are in the unsatisfiable core [2023-11-19 02:47:16,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:47:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:47:20,616 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:47:20,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 02:47:28,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-19 02:47:28,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:47:28,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 12 states and 18 transitions. [2023-11-19 02:47:28,965 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 18 transitions. [2023-11-19 02:47:28,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:47:28,967 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:47:28,967 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:47:28,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:47:28,972 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:47:28,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ece0bf8-93f2-4ccf-a592-fb5acb144a30/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 02:47:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:47:30,448 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:47:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:47:30,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 511 conjunts are in the unsatisfiable core [2023-11-19 02:47:30,930 INFO L285 TraceCheckSpWp]: Computing forward predicates...