./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.4.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.4.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5313d5ea4ac998369ef345899a0bd650cf549b05aa8b54898d456fbefdb910fe --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:54:04,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:54:04,860 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-03 00:54:04,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:54:04,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:54:04,889 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:54:04,890 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:54:04,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:54:04,891 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:54:04,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:54:04,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:54:04,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:54:04,894 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:54:04,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:54:04,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:54:04,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:54:04,896 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:54:04,905 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:54:04,906 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:54:04,906 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:54:04,907 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:54:04,907 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:54:04,908 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:54:04,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:54:04,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:54:04,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:54:04,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:54:04,910 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:54:04,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:54:04,911 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:54:04,911 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_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5313d5ea4ac998369ef345899a0bd650cf549b05aa8b54898d456fbefdb910fe [2023-12-03 00:54:05,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:54:05,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:54:05,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:54:05,146 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:54:05,146 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:54:05,147 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.4.prop1-back-serstep.c [2023-12-03 00:54:07,908 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:54:08,316 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:54:08,316 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.4.prop1-back-serstep.c [2023-12-03 00:54:08,347 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/data/a5d3371a0/271edbb870a246f59797b6d28bdeb82a/FLAG12ed69793 [2023-12-03 00:54:08,361 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/data/a5d3371a0/271edbb870a246f59797b6d28bdeb82a [2023-12-03 00:54:08,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:54:08,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:54:08,367 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:54:08,367 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:54:08,372 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:54:08,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:54:08" (1/1) ... [2023-12-03 00:54:08,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cdd73e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:54:08, skipping insertion in model container [2023-12-03 00:54:08,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:54:08" (1/1) ... [2023-12-03 00:54:08,534 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:54:08,789 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_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.4.prop1-back-serstep.c[1173,1186] [2023-12-03 00:54:09,498 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:54:09,509 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:54:09,519 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_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.4.prop1-back-serstep.c[1173,1186] [2023-12-03 00:54:10,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:54:10,017 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:54:10,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:54:10 WrapperNode [2023-12-03 00:54:10,018 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:54:10,019 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:54:10,019 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:54:10,019 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:54:10,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:54:10" (1/1) ... [2023-12-03 00:54:10,249 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:54:10" (1/1) ... [2023-12-03 00:54:11,343 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 16324 [2023-12-03 00:54:11,344 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:54:11,344 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:54:11,344 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:54:11,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:54:11,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:54:10" (1/1) ... [2023-12-03 00:54:11,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:54:10" (1/1) ... [2023-12-03 00:54:11,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:54:10" (1/1) ... [2023-12-03 00:54:11,587 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:54:10" (1/1) ... [2023-12-03 00:54:12,031 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:54:10" (1/1) ... [2023-12-03 00:54:12,105 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:54:10" (1/1) ... [2023-12-03 00:54:12,226 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:54:10" (1/1) ... [2023-12-03 00:54:12,269 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:54:10" (1/1) ... [2023-12-03 00:54:12,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:54:12,485 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:54:12,486 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:54:12,486 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:54:12,486 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:54:10" (1/1) ... [2023-12-03 00:54:12,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:54:12,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:54:12,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:54:12,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:54:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:54:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:54:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:54:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:54:13,731 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:54:13,733 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:54:22,890 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:54:47,193 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:54:47,194 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 00:54:47,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:54:47 BoogieIcfgContainer [2023-12-03 00:54:47,195 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:54:47,196 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:54:47,196 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:54:47,203 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:54:47,204 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:54:47" (1/1) ... [2023-12-03 00:54:47,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:54:47,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:54:47,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 00:54:47,261 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 00:54:47,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 00:54:47,263 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:54:47,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:54:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:54:53,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:55:04,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.97s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 00:55:14,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 00:55:23,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:55:23,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:55:23,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-03 00:55:23,728 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-03 00:55:23,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 00:55:23,728 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:55:23,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:55:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 00:55:37,704 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-03 00:55:37,707 INFO L158 Benchmark]: Toolchain (without parser) took 89341.31ms. Allocated memory was 148.9MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 106.9MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2023-12-03 00:55:37,707 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:55:37,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1650.87ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 106.5MB in the beginning and 66.5MB in the end (delta: 40.0MB). Peak memory consumption was 122.7MB. Max. memory is 16.1GB. [2023-12-03 00:55:37,709 INFO L158 Benchmark]: Boogie Procedure Inliner took 1324.97ms. Allocated memory was 180.4MB in the beginning and 549.5MB in the end (delta: 369.1MB). Free memory was 66.5MB in the beginning and 243.8MB in the end (delta: -177.3MB). Peak memory consumption was 252.5MB. Max. memory is 16.1GB. [2023-12-03 00:55:37,709 INFO L158 Benchmark]: Boogie Preprocessor took 1140.63ms. Allocated memory is still 549.5MB. Free memory was 243.8MB in the beginning and 182.8MB in the end (delta: 61.1MB). Peak memory consumption was 119.8MB. Max. memory is 16.1GB. [2023-12-03 00:55:37,710 INFO L158 Benchmark]: RCFGBuilder took 34709.70ms. Allocated memory was 549.5MB in the beginning and 7.2GB in the end (delta: 6.6GB). Free memory was 182.8MB in the beginning and 6.3GB in the end (delta: -6.2GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2023-12-03 00:55:37,710 INFO L158 Benchmark]: CodeCheck took 50510.40ms. Allocated memory is still 7.2GB. Free memory was 6.3GB in the beginning and 5.6GB in the end (delta: 776.4MB). Peak memory consumption was 776.4MB. Max. memory is 16.1GB. [2023-12-03 00:55:37,713 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1650.87ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 106.5MB in the beginning and 66.5MB in the end (delta: 40.0MB). Peak memory consumption was 122.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1324.97ms. Allocated memory was 180.4MB in the beginning and 549.5MB in the end (delta: 369.1MB). Free memory was 66.5MB in the beginning and 243.8MB in the end (delta: -177.3MB). Peak memory consumption was 252.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1140.63ms. Allocated memory is still 549.5MB. Free memory was 243.8MB in the beginning and 182.8MB in the end (delta: 61.1MB). Peak memory consumption was 119.8MB. Max. memory is 16.1GB. * RCFGBuilder took 34709.70ms. Allocated memory was 549.5MB in the beginning and 7.2GB in the end (delta: 6.6GB). Free memory was 182.8MB in the beginning and 6.3GB in the end (delta: -6.2GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. * CodeCheck took 50510.40ms. Allocated memory is still 7.2GB. Free memory was 6.3GB in the beginning and 5.6GB in the end (delta: 776.4MB). Peak memory consumption was 776.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 00:55:37,925 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-03 00:55:37,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.4.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5313d5ea4ac998369ef345899a0bd650cf549b05aa8b54898d456fbefdb910fe --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:55:40,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:55:40,076 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-03 00:55:40,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:55:40,107 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:55:40,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:55:40,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:55:40,108 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:55:40,109 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:55:40,109 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:55:40,110 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:55:40,110 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:55:40,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:55:40,111 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:55:40,112 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 00:55:40,112 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 00:55:40,113 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 00:55:40,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:55:40,114 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:55:40,114 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:55:40,115 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:55:40,115 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:55:40,116 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:55:40,116 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 00:55:40,116 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:55:40,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:55:40,117 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:55:40,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:55:40,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:55:40,119 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 00:55:40,119 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:55:40,119 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:55:40,120 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 00:55:40,120 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 00:55:40,121 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_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5313d5ea4ac998369ef345899a0bd650cf549b05aa8b54898d456fbefdb910fe [2023-12-03 00:55:40,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:55:40,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:55:40,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:55:40,457 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:55:40,458 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:55:40,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.4.prop1-back-serstep.c [2023-12-03 00:55:43,248 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:55:43,681 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:55:43,681 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.4.prop1-back-serstep.c [2023-12-03 00:55:43,711 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/data/0bf7cd3d2/2a66022d159f4c7bb0b63f3562361bd7/FLAG5cd9febe2 [2023-12-03 00:55:43,725 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/data/0bf7cd3d2/2a66022d159f4c7bb0b63f3562361bd7 [2023-12-03 00:55:43,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:55:43,729 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:55:43,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:55:43,731 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:55:43,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:55:43,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:55:43" (1/1) ... [2023-12-03 00:55:43,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea64c3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:43, skipping insertion in model container [2023-12-03 00:55:43,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:55:43" (1/1) ... [2023-12-03 00:55:43,925 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:55:44,176 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_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.4.prop1-back-serstep.c[1173,1186] [2023-12-03 00:55:44,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:55:44,785 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:55:44,797 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_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.4.prop1-back-serstep.c[1173,1186] [2023-12-03 00:55:45,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:55:45,208 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:55:45,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:45 WrapperNode [2023-12-03 00:55:45,209 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:55:45,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:55:45,210 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:55:45,210 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:55:45,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:45" (1/1) ... [2023-12-03 00:55:45,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:45" (1/1) ... [2023-12-03 00:55:45,652 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 7176 [2023-12-03 00:55:45,653 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:55:45,654 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:55:45,654 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:55:45,654 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:55:45,664 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:45" (1/1) ... [2023-12-03 00:55:45,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:45" (1/1) ... [2023-12-03 00:55:45,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:45" (1/1) ... [2023-12-03 00:55:45,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:45" (1/1) ... [2023-12-03 00:55:45,846 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:45" (1/1) ... [2023-12-03 00:55:45,861 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:45" (1/1) ... [2023-12-03 00:55:45,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:45" (1/1) ... [2023-12-03 00:55:45,910 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:45" (1/1) ... [2023-12-03 00:55:45,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:55:45,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:55:45,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:55:45,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:55:45,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:45" (1/1) ... [2023-12-03 00:55:45,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:55:46,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:55:46,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:55:46,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:55:46,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:55:46,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 00:55:46,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:55:46,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:55:47,116 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:55:47,118 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:56:13,531 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:56:13,885 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:56:13,885 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 00:56:13,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:56:13 BoogieIcfgContainer [2023-12-03 00:56:13,887 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:56:13,887 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:56:13,888 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:56:13,895 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:56:13,896 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:56:13" (1/1) ... [2023-12-03 00:56:13,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:56:13,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:56:13,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 00:56:13,949 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 00:56:13,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 00:56:13,950 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:56:13,951 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:56:13,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:56:13,953 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:56:13,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 00:56:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:56:15,917 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:56:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:56:16,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 00:56:16,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:56:16,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:56:16,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 00:56:27,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:56:37,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:56:37,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:56:37,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-03 00:56:37,422 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-03 00:56:37,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 00:56:37,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:56:37,423 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:56:37,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:56:37,424 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:56:37,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 00:56:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:56:42,656 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:56:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:56:44,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 6831 conjuncts, 77 conjunts are in the unsatisfiable core [2023-12-03 00:56:44,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:56:45,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:56:45,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 00:56:55,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:57:06,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:57:17,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:57:27,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:57:37,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:57:47,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:57:57,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:58:07,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:58:18,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:58:29,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:58:39,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:58:39,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:58:39,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-03 00:58:39,284 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-03 00:58:39,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 00:58:39,286 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:58:39,286 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:58:39,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:58:39,287 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:58:39,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cae5e1-a5ab-42b4-92c7-cac54b01d84e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 01:01:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:01:01,690 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:01:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:01:09,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 13326 conjuncts, 849 conjunts are in the unsatisfiable core [2023-12-03 01:01:09,575 INFO L285 TraceCheckSpWp]: Computing forward predicates...