./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.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_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c8208b6c8f4a2ac058115c356d3ca9113d648f4f67e8abc6f1ec7c44bb7ab63f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:20:35,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:20:36,077 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:20:36,086 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:20:36,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:20:36,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:20:36,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:20:36,131 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:20:36,133 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:20:36,138 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:20:36,139 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:20:36,139 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:20:36,140 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:20:36,142 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:20:36,142 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:20:36,143 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:20:36,143 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:20:36,144 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:20:36,144 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:20:36,145 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:20:36,147 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:20:36,148 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:20:36,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:20:36,150 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:20:36,150 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:20:36,151 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:20:36,151 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:20:36,152 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:20:36,152 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:20:36,153 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:20:36,154 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:20:36,155 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:20:36,155 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:20:36,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:20:36,156 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:20:36,156 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:20:36,157 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:20:36,157 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:20:36,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:20:36,158 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:20:36,158 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:20:36,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:20:36,159 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8208b6c8f4a2ac058115c356d3ca9113d648f4f67e8abc6f1ec7c44bb7ab63f [2023-11-19 05:20:36,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:20:36,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:20:36,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:20:36,555 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:20:36,556 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:20:36,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2023-11-19 05:20:39,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:20:40,228 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:20:40,229 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2023-11-19 05:20:40,251 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/data/ecfba9ae1/9e0d5ba86cb0481e87ee7f2d593635ae/FLAG13da4d902 [2023-11-19 05:20:40,270 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/data/ecfba9ae1/9e0d5ba86cb0481e87ee7f2d593635ae [2023-11-19 05:20:40,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:20:40,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:20:40,280 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:20:40,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:20:40,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:20:40,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:20:40" (1/1) ... [2023-11-19 05:20:40,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ddb5b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:40, skipping insertion in model container [2023-11-19 05:20:40,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:20:40" (1/1) ... [2023-11-19 05:20:40,366 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:20:40,626 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_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c[1268,1281] [2023-11-19 05:20:41,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:20:41,166 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:20:41,177 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_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c[1268,1281] [2023-11-19 05:20:41,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:20:41,441 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:20:41,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:41 WrapperNode [2023-11-19 05:20:41,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:20:41,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:20:41,444 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:20:41,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:20:41,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:41" (1/1) ... [2023-11-19 05:20:41,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:41" (1/1) ... [2023-11-19 05:20:42,110 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5379 [2023-11-19 05:20:42,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:20:42,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:20:42,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:20:42,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:20:42,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:41" (1/1) ... [2023-11-19 05:20:42,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:41" (1/1) ... [2023-11-19 05:20:42,383 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:41" (1/1) ... [2023-11-19 05:20:42,384 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:41" (1/1) ... [2023-11-19 05:20:42,654 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:41" (1/1) ... [2023-11-19 05:20:42,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:41" (1/1) ... [2023-11-19 05:20:42,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:41" (1/1) ... [2023-11-19 05:20:42,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:41" (1/1) ... [2023-11-19 05:20:42,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:20:42,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:20:42,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:20:42,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:20:42,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:41" (1/1) ... [2023-11-19 05:20:42,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:20:42,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:20:42,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:20:42,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:20:42,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:20:42,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:20:42,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:20:42,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:20:43,641 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:20:43,646 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:20:47,338 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:20:55,932 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:20:55,933 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:20:55,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:20:55 BoogieIcfgContainer [2023-11-19 05:20:55,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:20:55,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:20:55,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:20:55,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:20:55,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:20:40" (1/3) ... [2023-11-19 05:20:55,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dcaf2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:20:55, skipping insertion in model container [2023-11-19 05:20:55,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:20:41" (2/3) ... [2023-11-19 05:20:55,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dcaf2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:20:55, skipping insertion in model container [2023-11-19 05:20:55,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:20:55" (3/3) ... [2023-11-19 05:20:55,951 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2023-11-19 05:20:55,973 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:20:55,973 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:20:56,030 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:20:56,038 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1a5f6f4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:20:56,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:20:56,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:20:56,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 05:20:56,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:20:56,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 05:20:56,050 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:20:56,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:20:56,059 INFO L85 PathProgramCache]: Analyzing trace with hash 145945166, now seen corresponding path program 1 times [2023-11-19 05:20:56,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:20:56,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547500099] [2023-11-19 05:20:56,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:20:56,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:20:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:20:57,306 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:20:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:20:58,173 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:20:58,175 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:20:58,177 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:20:58,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:20:58,184 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:20:58,194 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:20:58,263 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 05:20:58,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:20:58 BoogieIcfgContainer [2023-11-19 05:20:58,290 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:20:58,291 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:20:58,291 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:20:58,291 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:20:58,292 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:20:55" (3/4) ... [2023-11-19 05:20:58,294 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:20:58,295 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:20:58,297 INFO L158 Benchmark]: Toolchain (without parser) took 18019.93ms. Allocated memory was 153.1MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 104.1MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 263.3MB. Max. memory is 16.1GB. [2023-11-19 05:20:58,298 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:20:58,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1162.51ms. Allocated memory is still 153.1MB. Free memory was 104.1MB in the beginning and 56.5MB in the end (delta: 47.6MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2023-11-19 05:20:58,300 INFO L158 Benchmark]: Boogie Procedure Inliner took 667.29ms. Allocated memory was 153.1MB in the beginning and 216.0MB in the end (delta: 62.9MB). Free memory was 56.5MB in the beginning and 95.0MB in the end (delta: -38.6MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2023-11-19 05:20:58,306 INFO L158 Benchmark]: Boogie Preprocessor took 772.50ms. Allocated memory is still 216.0MB. Free memory was 95.0MB in the beginning and 77.1MB in the end (delta: 18.0MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2023-11-19 05:20:58,306 INFO L158 Benchmark]: RCFGBuilder took 13054.02ms. Allocated memory was 216.0MB in the beginning and 2.0GB in the end (delta: 1.7GB). Free memory was 77.1MB in the beginning and 1.4GB in the end (delta: -1.4GB). Peak memory consumption was 669.7MB. Max. memory is 16.1GB. [2023-11-19 05:20:58,308 INFO L158 Benchmark]: TraceAbstraction took 2347.17ms. Allocated memory is still 2.0GB. Free memory was 1.4GB in the beginning and 1.6GB in the end (delta: -206.6MB). Peak memory consumption was 146.8MB. Max. memory is 16.1GB. [2023-11-19 05:20:58,309 INFO L158 Benchmark]: Witness Printer took 5.06ms. Allocated memory is still 2.0GB. Free memory is still 1.6GB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:20:58,317 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1162.51ms. Allocated memory is still 153.1MB. Free memory was 104.1MB in the beginning and 56.5MB in the end (delta: 47.6MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 667.29ms. Allocated memory was 153.1MB in the beginning and 216.0MB in the end (delta: 62.9MB). Free memory was 56.5MB in the beginning and 95.0MB in the end (delta: -38.6MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 772.50ms. Allocated memory is still 216.0MB. Free memory was 95.0MB in the beginning and 77.1MB in the end (delta: 18.0MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * RCFGBuilder took 13054.02ms. Allocated memory was 216.0MB in the beginning and 2.0GB in the end (delta: 1.7GB). Free memory was 77.1MB in the beginning and 1.4GB in the end (delta: -1.4GB). Peak memory consumption was 669.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2347.17ms. Allocated memory is still 2.0GB. Free memory was 1.4GB in the beginning and 1.6GB in the end (delta: -206.6MB). Peak memory consumption was 146.8MB. Max. memory is 16.1GB. * Witness Printer took 5.06ms. Allocated memory is still 2.0GB. Free memory is still 1.6GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 bitwiseOr at line 344, overapproximation of bitwiseAnd at line 244. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 2); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (2 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L32] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 3); [L33] const SORT_6 msb_SORT_6 = (SORT_6)1 << (3 - 1); [L35] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 4); [L36] const SORT_12 msb_SORT_12 = (SORT_12)1 << (4 - 1); [L38] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 8); [L39] const SORT_16 msb_SORT_16 = (SORT_16)1 << (8 - 1); [L41] const SORT_21 mask_SORT_21 = (SORT_21)-1 >> (sizeof(SORT_21) * 8 - 7); [L42] const SORT_21 msb_SORT_21 = (SORT_21)1 << (7 - 1); [L44] const SORT_21 var_22 = 1; [L45] const SORT_21 var_26 = 2; [L46] const SORT_21 var_29 = 4; [L47] const SORT_21 var_32 = 8; [L48] const SORT_21 var_35 = 16; [L49] const SORT_21 var_38 = 32; [L50] const SORT_21 var_41 = 64; [L51] const SORT_21 var_44 = 0; [L52] const SORT_3 var_47 = 1; [L53] const SORT_3 var_51 = 0; [L54] const SORT_6 var_138 = 0; [L56] SORT_1 input_2; [L57] SORT_3 input_4; [L58] SORT_3 input_5; [L59] SORT_6 input_7; [L60] SORT_3 input_8; [L61] SORT_3 input_9; [L62] SORT_3 input_10; [L63] SORT_3 input_11; [L64] SORT_12 input_13; [L65] SORT_3 input_14; [L66] SORT_3 input_15; [L67] SORT_16 input_17; [L68] SORT_3 input_18; [L69] SORT_3 input_19; [L70] SORT_3 input_20; [L71] SORT_3 input_360; [L72] SORT_3 input_382; [L73] SORT_3 input_397; [L74] SORT_3 input_412; [L75] SORT_3 input_427; [L76] SORT_3 input_442; [L77] SORT_3 input_457; [L78] SORT_3 input_472; [L79] SORT_3 input_487; [L80] SORT_3 input_502; [L81] SORT_3 input_517; [L82] SORT_3 input_532; [L83] SORT_3 input_547; [L84] SORT_3 input_562; [L85] SORT_3 input_577; [L86] SORT_3 input_592; [L87] SORT_3 input_608; [L88] SORT_3 input_610; [L89] SORT_3 input_612; [L90] SORT_3 input_614; [L91] SORT_3 input_616; [L92] SORT_3 input_618; [L93] SORT_3 input_620; [L94] SORT_3 input_622; [L95] SORT_3 input_627; [L96] SORT_3 input_669; [L97] SORT_3 input_678; [L98] SORT_21 input_683; [L99] SORT_21 input_684; [L100] SORT_21 input_685; [L101] SORT_21 input_686; [L102] SORT_21 input_689; [L103] SORT_21 input_693; [L104] SORT_21 input_697; [L105] SORT_21 input_705; [L106] SORT_21 input_709; [L107] SORT_21 input_711; [L108] SORT_21 input_715; [L109] SORT_21 input_718; [L110] SORT_21 input_722; [L111] SORT_21 input_727; [L112] SORT_21 input_731; [L113] SORT_21 input_736; [L114] SORT_21 input_738; [L115] SORT_21 input_739; [L116] SORT_21 input_741; [L117] SORT_21 input_745; [L118] SORT_21 input_750; [L119] SORT_21 input_757; [L120] SORT_21 input_758; [L121] SORT_21 input_760; [L122] SORT_21 input_764; [L123] SORT_21 input_769; [L124] SORT_21 input_771; [L125] SORT_21 input_772; [L126] SORT_21 input_774; [L127] SORT_21 input_778; [L128] SORT_21 input_783; [L129] SORT_21 input_787; [L130] SORT_21 input_792; [L131] SORT_21 input_794; [L132] SORT_21 input_800; [L133] SORT_21 input_812; [L134] SORT_3 input_830; [L135] SORT_3 input_837; [L136] SORT_3 input_848; [L137] SORT_3 input_854; [L138] SORT_3 input_860; [L139] SORT_3 input_866; [L140] SORT_3 input_872; [L141] SORT_3 input_878; [L142] SORT_3 input_884; [L143] SORT_3 input_890; [L144] SORT_3 input_896; [L145] SORT_3 input_902; [L146] SORT_3 input_908; [L147] SORT_3 input_914; [L148] SORT_3 input_920; [L150] EXPR __VERIFIER_nondet_uchar() & mask_SORT_21 [L150] SORT_21 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_21; [L151] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L151] SORT_3 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L152] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L152] SORT_3 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L153] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L153] SORT_3 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L154] EXPR __VERIFIER_nondet_uchar() & mask_SORT_21 [L154] SORT_21 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_21; [L155] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L155] SORT_3 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L156] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L156] SORT_3 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L157] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L157] SORT_3 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L158] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L158] SORT_3 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L159] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L159] SORT_3 state_103 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L160] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L160] SORT_3 state_106 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L161] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L161] SORT_3 state_108 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L162] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L162] SORT_3 state_112 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L163] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L163] SORT_3 state_116 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L164] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L164] SORT_3 state_121 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L165] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L165] SORT_3 state_124 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L166] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L166] SORT_3 state_134 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L167] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L167] SORT_3 state_141 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L168] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L168] SORT_3 state_144 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L169] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L169] SORT_3 state_153 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L170] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L170] SORT_3 state_158 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L171] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L171] SORT_3 state_161 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L172] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L172] SORT_3 state_173 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L173] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L173] SORT_3 state_183 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L174] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L174] SORT_3 state_188 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L175] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L175] SORT_3 state_191 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L176] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L176] SORT_3 state_200 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L177] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L177] SORT_3 state_213 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L178] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L178] SORT_3 state_226 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L180] SORT_21 init_24_arg_1 = var_22; [L181] state_23 = init_24_arg_1 [L182] SORT_3 init_53_arg_1 = var_51; [L183] state_52 = init_53_arg_1 [L184] SORT_3 init_55_arg_1 = var_51; [L185] state_54 = init_55_arg_1 [L186] SORT_3 init_57_arg_1 = var_51; [L187] state_56 = init_57_arg_1 [L188] SORT_21 init_59_arg_1 = var_22; [L189] state_58 = init_59_arg_1 [L190] SORT_3 init_63_arg_1 = var_51; [L191] state_62 = init_63_arg_1 [L192] SORT_3 init_67_arg_1 = var_51; [L193] state_66 = init_67_arg_1 [L194] SORT_3 init_71_arg_1 = var_51; [L195] state_70 = init_71_arg_1 [L196] SORT_3 init_87_arg_1 = var_51; [L197] state_86 = init_87_arg_1 [L198] SORT_3 init_104_arg_1 = var_51; [L199] state_103 = init_104_arg_1 [L200] SORT_3 init_107_arg_1 = var_51; [L201] state_106 = init_107_arg_1 [L202] SORT_3 init_109_arg_1 = var_51; [L203] state_108 = init_109_arg_1 [L204] SORT_3 init_113_arg_1 = var_51; [L205] state_112 = init_113_arg_1 [L206] SORT_3 init_117_arg_1 = var_51; [L207] state_116 = init_117_arg_1 [L208] SORT_3 init_122_arg_1 = var_51; [L209] state_121 = init_122_arg_1 [L210] SORT_3 init_125_arg_1 = var_51; [L211] state_124 = init_125_arg_1 [L212] SORT_3 init_135_arg_1 = var_51; [L213] state_134 = init_135_arg_1 [L214] SORT_3 init_142_arg_1 = var_51; [L215] state_141 = init_142_arg_1 [L216] SORT_3 init_145_arg_1 = var_51; [L217] state_144 = init_145_arg_1 [L218] SORT_3 init_154_arg_1 = var_51; [L219] state_153 = init_154_arg_1 [L220] SORT_3 init_159_arg_1 = var_51; [L221] state_158 = init_159_arg_1 [L222] SORT_3 init_162_arg_1 = var_51; [L223] state_161 = init_162_arg_1 [L224] SORT_3 init_174_arg_1 = var_51; [L225] state_173 = init_174_arg_1 [L226] SORT_3 init_184_arg_1 = var_51; [L227] state_183 = init_184_arg_1 [L228] SORT_3 init_189_arg_1 = var_51; [L229] state_188 = init_189_arg_1 [L230] SORT_3 init_192_arg_1 = var_51; [L231] state_191 = init_192_arg_1 [L232] SORT_3 init_201_arg_1 = var_51; [L233] state_200 = init_201_arg_1 [L234] SORT_3 init_214_arg_1 = var_51; [L235] state_213 = init_214_arg_1 [L236] SORT_3 init_227_arg_1 = var_51; [L237] state_226 = init_227_arg_1 VAL [init_104_arg_1=0, init_107_arg_1=0, init_109_arg_1=0, init_113_arg_1=0, init_117_arg_1=0, init_122_arg_1=0, init_125_arg_1=0, init_135_arg_1=0, init_142_arg_1=0, init_145_arg_1=0, init_154_arg_1=0, init_159_arg_1=0, init_162_arg_1=0, init_174_arg_1=0, init_184_arg_1=0, init_189_arg_1=0, init_192_arg_1=0, init_201_arg_1=0, init_214_arg_1=0, init_227_arg_1=0, init_24_arg_1=1, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=1, init_63_arg_1=0, init_67_arg_1=0, init_71_arg_1=0, init_87_arg_1=0, mask_SORT_12=15, mask_SORT_16=255, mask_SORT_1=3, mask_SORT_21=127, mask_SORT_3=1, mask_SORT_6=7, msb_SORT_12=8, msb_SORT_16=128, msb_SORT_1=2, msb_SORT_21=64, msb_SORT_3=1, msb_SORT_6=4, state_103=0, state_106=0, state_108=0, state_112=0, state_116=0, state_121=0, state_124=0, state_134=0, state_141=0, state_144=0, state_153=0, state_158=0, state_161=0, state_173=0, state_183=0, state_188=0, state_191=0, state_200=0, state_213=0, state_226=0, state_23=1, state_52=0, state_54=0, state_56=0, state_58=1, state_62=0, state_66=0, state_70=0, state_86=0, var_138=0, var_22=1, var_26=2, var_29=4, var_32=8, var_35=16, var_38=32, var_41=64, var_44=0, var_47=1, var_51=0] [L240] input_2 = __VERIFIER_nondet_uchar() [L241] input_4 = __VERIFIER_nondet_uchar() [L242] input_5 = __VERIFIER_nondet_uchar() [L243] input_7 = __VERIFIER_nondet_uchar() [L244] EXPR input_7 & mask_SORT_6 [L244] input_7 = input_7 & mask_SORT_6 [L245] input_8 = __VERIFIER_nondet_uchar() [L246] input_9 = __VERIFIER_nondet_uchar() [L247] input_10 = __VERIFIER_nondet_uchar() [L248] input_11 = __VERIFIER_nondet_uchar() [L249] input_13 = __VERIFIER_nondet_uchar() [L250] input_14 = __VERIFIER_nondet_uchar() [L251] input_15 = __VERIFIER_nondet_uchar() [L252] input_17 = __VERIFIER_nondet_uchar() [L253] input_18 = __VERIFIER_nondet_uchar() [L254] input_19 = __VERIFIER_nondet_uchar() [L255] input_20 = __VERIFIER_nondet_uchar() [L256] input_360 = __VERIFIER_nondet_uchar() [L257] input_382 = __VERIFIER_nondet_uchar() [L258] input_397 = __VERIFIER_nondet_uchar() [L259] input_412 = __VERIFIER_nondet_uchar() [L260] input_427 = __VERIFIER_nondet_uchar() [L261] input_442 = __VERIFIER_nondet_uchar() [L262] input_457 = __VERIFIER_nondet_uchar() [L263] input_472 = __VERIFIER_nondet_uchar() [L264] input_487 = __VERIFIER_nondet_uchar() [L265] input_502 = __VERIFIER_nondet_uchar() [L266] input_517 = __VERIFIER_nondet_uchar() [L267] input_532 = __VERIFIER_nondet_uchar() [L268] input_547 = __VERIFIER_nondet_uchar() [L269] input_562 = __VERIFIER_nondet_uchar() [L270] input_577 = __VERIFIER_nondet_uchar() [L271] input_592 = __VERIFIER_nondet_uchar() [L272] input_608 = __VERIFIER_nondet_uchar() [L273] input_610 = __VERIFIER_nondet_uchar() [L274] input_612 = __VERIFIER_nondet_uchar() [L275] input_614 = __VERIFIER_nondet_uchar() [L276] input_616 = __VERIFIER_nondet_uchar() [L277] input_618 = __VERIFIER_nondet_uchar() [L278] input_620 = __VERIFIER_nondet_uchar() [L279] input_622 = __VERIFIER_nondet_uchar() [L280] input_627 = __VERIFIER_nondet_uchar() [L281] input_669 = __VERIFIER_nondet_uchar() [L282] input_678 = __VERIFIER_nondet_uchar() [L283] input_683 = __VERIFIER_nondet_uchar() [L284] input_684 = __VERIFIER_nondet_uchar() [L285] input_685 = __VERIFIER_nondet_uchar() [L286] input_686 = __VERIFIER_nondet_uchar() [L287] input_689 = __VERIFIER_nondet_uchar() [L288] input_693 = __VERIFIER_nondet_uchar() [L289] input_697 = __VERIFIER_nondet_uchar() [L290] input_705 = __VERIFIER_nondet_uchar() [L291] input_709 = __VERIFIER_nondet_uchar() [L292] input_711 = __VERIFIER_nondet_uchar() [L293] input_715 = __VERIFIER_nondet_uchar() [L294] input_718 = __VERIFIER_nondet_uchar() [L295] input_722 = __VERIFIER_nondet_uchar() [L296] input_727 = __VERIFIER_nondet_uchar() [L297] input_731 = __VERIFIER_nondet_uchar() [L298] input_736 = __VERIFIER_nondet_uchar() [L299] input_738 = __VERIFIER_nondet_uchar() [L300] input_739 = __VERIFIER_nondet_uchar() [L301] input_741 = __VERIFIER_nondet_uchar() [L302] input_745 = __VERIFIER_nondet_uchar() [L303] input_750 = __VERIFIER_nondet_uchar() [L304] input_757 = __VERIFIER_nondet_uchar() [L305] input_758 = __VERIFIER_nondet_uchar() [L306] input_760 = __VERIFIER_nondet_uchar() [L307] input_764 = __VERIFIER_nondet_uchar() [L308] input_769 = __VERIFIER_nondet_uchar() [L309] input_771 = __VERIFIER_nondet_uchar() [L310] input_772 = __VERIFIER_nondet_uchar() [L311] input_774 = __VERIFIER_nondet_uchar() [L312] input_778 = __VERIFIER_nondet_uchar() [L313] input_783 = __VERIFIER_nondet_uchar() [L314] input_787 = __VERIFIER_nondet_uchar() [L315] input_792 = __VERIFIER_nondet_uchar() [L316] input_794 = __VERIFIER_nondet_uchar() [L317] input_800 = __VERIFIER_nondet_uchar() [L318] input_812 = __VERIFIER_nondet_uchar() [L319] input_830 = __VERIFIER_nondet_uchar() [L320] input_837 = __VERIFIER_nondet_uchar() [L321] input_848 = __VERIFIER_nondet_uchar() [L322] input_854 = __VERIFIER_nondet_uchar() [L323] input_860 = __VERIFIER_nondet_uchar() [L324] input_866 = __VERIFIER_nondet_uchar() [L325] input_872 = __VERIFIER_nondet_uchar() [L326] input_878 = __VERIFIER_nondet_uchar() [L327] input_884 = __VERIFIER_nondet_uchar() [L328] input_890 = __VERIFIER_nondet_uchar() [L329] input_896 = __VERIFIER_nondet_uchar() [L330] input_902 = __VERIFIER_nondet_uchar() [L331] input_908 = __VERIFIER_nondet_uchar() [L332] input_914 = __VERIFIER_nondet_uchar() [L333] input_920 = __VERIFIER_nondet_uchar() [L336] SORT_21 var_25_arg_0 = state_23; [L337] SORT_21 var_25_arg_1 = var_22; [L338] SORT_3 var_25 = var_25_arg_0 == var_25_arg_1; [L339] SORT_21 var_27_arg_0 = state_23; [L340] SORT_21 var_27_arg_1 = var_26; [L341] SORT_3 var_27 = var_27_arg_0 == var_27_arg_1; [L342] SORT_3 var_28_arg_0 = var_25; [L343] SORT_3 var_28_arg_1 = var_27; [L344] EXPR var_28_arg_0 | var_28_arg_1 [L344] SORT_3 var_28 = var_28_arg_0 | var_28_arg_1; [L345] SORT_21 var_30_arg_0 = state_23; [L346] SORT_21 var_30_arg_1 = var_29; [L347] SORT_3 var_30 = var_30_arg_0 == var_30_arg_1; [L348] SORT_3 var_31_arg_0 = var_28; [L349] SORT_3 var_31_arg_1 = var_30; [L350] EXPR var_31_arg_0 | var_31_arg_1 [L350] SORT_3 var_31 = var_31_arg_0 | var_31_arg_1; [L351] SORT_21 var_33_arg_0 = state_23; [L352] SORT_21 var_33_arg_1 = var_32; [L353] SORT_3 var_33 = var_33_arg_0 == var_33_arg_1; [L354] SORT_3 var_34_arg_0 = var_31; [L355] SORT_3 var_34_arg_1 = var_33; [L356] EXPR var_34_arg_0 | var_34_arg_1 [L356] SORT_3 var_34 = var_34_arg_0 | var_34_arg_1; [L357] SORT_21 var_36_arg_0 = state_23; [L358] SORT_21 var_36_arg_1 = var_35; [L359] SORT_3 var_36 = var_36_arg_0 == var_36_arg_1; [L360] SORT_3 var_37_arg_0 = var_34; [L361] SORT_3 var_37_arg_1 = var_36; [L362] EXPR var_37_arg_0 | var_37_arg_1 [L362] SORT_3 var_37 = var_37_arg_0 | var_37_arg_1; [L363] SORT_21 var_39_arg_0 = state_23; [L364] SORT_21 var_39_arg_1 = var_38; [L365] SORT_3 var_39 = var_39_arg_0 == var_39_arg_1; [L366] SORT_3 var_40_arg_0 = var_37; [L367] SORT_3 var_40_arg_1 = var_39; [L368] EXPR var_40_arg_0 | var_40_arg_1 [L368] SORT_3 var_40 = var_40_arg_0 | var_40_arg_1; [L369] SORT_21 var_42_arg_0 = state_23; [L370] SORT_21 var_42_arg_1 = var_41; [L371] SORT_3 var_42 = var_42_arg_0 == var_42_arg_1; [L372] SORT_3 var_43_arg_0 = var_40; [L373] SORT_3 var_43_arg_1 = var_42; [L374] EXPR var_43_arg_0 | var_43_arg_1 [L374] SORT_3 var_43 = var_43_arg_0 | var_43_arg_1; [L375] SORT_21 var_45_arg_0 = state_23; [L376] SORT_21 var_45_arg_1 = var_44; [L377] SORT_3 var_45 = var_45_arg_0 == var_45_arg_1; [L378] SORT_3 var_46_arg_0 = var_43; [L379] SORT_3 var_46_arg_1 = var_45; [L380] EXPR var_46_arg_0 | var_46_arg_1 [L380] SORT_3 var_46 = var_46_arg_0 | var_46_arg_1; [L381] SORT_3 var_48_arg_0 = var_46; [L382] SORT_3 var_48 = ~var_48_arg_0; [L383] SORT_3 var_49_arg_0 = var_47; [L384] SORT_3 var_49_arg_1 = var_48; [L385] EXPR var_49_arg_0 & var_49_arg_1 [L385] SORT_3 var_49 = var_49_arg_0 & var_49_arg_1; [L386] EXPR var_49 & mask_SORT_3 [L386] var_49 = var_49 & mask_SORT_3 [L387] SORT_3 bad_50_arg_0 = var_49; [L388] CALL __VERIFIER_assert(!(bad_50_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s 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, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 05:20:58,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c8208b6c8f4a2ac058115c356d3ca9113d648f4f67e8abc6f1ec7c44bb7ab63f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:21:01,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:21:01,255 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-19 05:21:01,264 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:21:01,265 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:21:01,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:21:01,304 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:21:01,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:21:01,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:21:01,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:21:01,312 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:21:01,312 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:21:01,313 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:21:01,315 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:21:01,315 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:21:01,316 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:21:01,317 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:21:01,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:21:01,318 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:21:01,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:21:01,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:21:01,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:21:01,320 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:21:01,321 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:21:01,321 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:21:01,322 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:21:01,322 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:21:01,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:21:01,323 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:21:01,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:21:01,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:21:01,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:21:01,326 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:21:01,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:21:01,327 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:21:01,327 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:21:01,327 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:21:01,328 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:21:01,328 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:21:01,329 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_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8208b6c8f4a2ac058115c356d3ca9113d648f4f67e8abc6f1ec7c44bb7ab63f [2023-11-19 05:21:01,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:21:01,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:21:01,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:21:01,800 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:21:01,801 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:21:01,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2023-11-19 05:21:04,945 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:21:05,427 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:21:05,428 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2023-11-19 05:21:05,449 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/data/70c136bee/f3b9419a79f14af0b5a7a45c7b31009c/FLAGd962cc77c [2023-11-19 05:21:05,463 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/data/70c136bee/f3b9419a79f14af0b5a7a45c7b31009c [2023-11-19 05:21:05,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:21:05,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:21:05,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:21:05,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:21:05,474 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:21:05,475 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:05" (1/1) ... [2023-11-19 05:21:05,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18422a07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:05, skipping insertion in model container [2023-11-19 05:21:05,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:05" (1/1) ... [2023-11-19 05:21:05,574 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:21:05,826 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_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c[1268,1281] [2023-11-19 05:21:06,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:21:06,352 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:21:06,363 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_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c[1268,1281] [2023-11-19 05:21:06,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:21:06,574 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:21:06,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:06 WrapperNode [2023-11-19 05:21:06,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:21:06,576 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:21:06,577 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:21:06,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:21:06,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:06" (1/1) ... [2023-11-19 05:21:06,662 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:06" (1/1) ... [2023-11-19 05:21:06,842 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2619 [2023-11-19 05:21:06,842 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:21:06,843 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:21:06,843 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:21:06,844 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:21:06,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:06" (1/1) ... [2023-11-19 05:21:06,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:06" (1/1) ... [2023-11-19 05:21:06,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:06" (1/1) ... [2023-11-19 05:21:06,868 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:06" (1/1) ... [2023-11-19 05:21:06,938 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:06" (1/1) ... [2023-11-19 05:21:06,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:06" (1/1) ... [2023-11-19 05:21:06,959 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:06" (1/1) ... [2023-11-19 05:21:06,979 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:06" (1/1) ... [2023-11-19 05:21:06,998 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:21:06,999 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:21:07,000 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:21:07,000 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:21:07,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:06" (1/1) ... [2023-11-19 05:21:07,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:21:07,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:21:07,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:21:07,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:21:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:21:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:21:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:21:07,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:21:07,576 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:21:07,579 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:21:11,454 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:21:11,462 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:21:11,462 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:21:11,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:21:11 BoogieIcfgContainer [2023-11-19 05:21:11,469 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:21:11,472 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:21:11,473 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:21:11,476 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:21:11,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:21:05" (1/3) ... [2023-11-19 05:21:11,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1864a566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:21:11, skipping insertion in model container [2023-11-19 05:21:11,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:06" (2/3) ... [2023-11-19 05:21:11,480 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1864a566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:21:11, skipping insertion in model container [2023-11-19 05:21:11,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:21:11" (3/3) ... [2023-11-19 05:21:11,482 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2023-11-19 05:21:11,502 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:21:11,502 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:21:11,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:21:11,572 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@229e02a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:21:11,573 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:21:11,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:11,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 05:21:11,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:11,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 05:21:11,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:21:11,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:11,594 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2023-11-19 05:21:11,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:21:11,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796528583] [2023-11-19 05:21:11,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:11,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:21:11,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:21:11,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:21:11,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 05:21:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:12,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 05:21:12,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:21:12,639 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 05:21:12,640 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:21:12,641 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:21:12,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796528583] [2023-11-19 05:21:12,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796528583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:12,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:12,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:21:12,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184965835] [2023-11-19 05:21:12,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:12,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:21:12,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:21:12,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:21:12,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:21:12,694 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:13,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:13,043 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2023-11-19 05:21:13,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:21:13,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-19 05:21:13,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:13,055 INFO L225 Difference]: With dead ends: 19 [2023-11-19 05:21:13,055 INFO L226 Difference]: Without dead ends: 10 [2023-11-19 05:21:13,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:21:13,063 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:13,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:21:13,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-19 05:21:13,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-11-19 05:21:13,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:13,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-19 05:21:13,101 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-11-19 05:21:13,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:13,102 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-19 05:21:13,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-19 05:21:13,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 05:21:13,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:13,103 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-19 05:21:13,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:21:13,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:21:13,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:21:13,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:13,308 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2023-11-19 05:21:13,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:21:13,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157943734] [2023-11-19 05:21:13,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:13,314 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:21:13,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:21:13,316 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:21:13,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 05:21:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:17,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 2159 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-19 05:21:17,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:21:17,328 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 05:21:17,328 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:21:19,865 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 05:21:19,866 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:21:19,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157943734] [2023-11-19 05:21:19,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157943734] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:21:19,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [603272956] [2023-11-19 05:21:19,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:19,873 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:21:19,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:21:19,922 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:21:19,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ef2dbe7-0c9c-4f57-9eed-2eb2f51d247c/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 05:21:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:22,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 2159 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-19 05:21:22,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:21:22,496 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 05:21:22,496 INFO L327 TraceCheckSpWp]: Computing backward predicates...