./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.1.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/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_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/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_af8f3f01-6015-4fdc-b8bf-80776eb4794c/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 cefa2896cdbe73db397004945d1c4c4e84fdeccf49e16275e9444234f8acb776 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:34:24,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:34:24,242 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-03 01:34:24,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:34:24,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:34:24,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:34:24,268 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:34:24,268 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:34:24,269 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:34:24,270 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:34:24,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:34:24,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:34:24,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:34:24,272 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:34:24,272 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:34:24,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:34:24,273 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:34:24,274 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:34:24,274 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:34:24,275 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:34:24,275 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:34:24,279 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:34:24,279 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:34:24,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:34:24,280 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:34:24,281 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:34:24,281 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:34:24,282 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:34:24,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:34:24,282 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:34:24,283 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_af8f3f01-6015-4fdc-b8bf-80776eb4794c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cefa2896cdbe73db397004945d1c4c4e84fdeccf49e16275e9444234f8acb776 [2023-12-03 01:34:24,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:34:24,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:34:24,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:34:24,510 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:34:24,511 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:34:24,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.1.prop1-back-serstep.c [2023-12-03 01:34:27,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:34:27,560 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:34:27,561 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.1.prop1-back-serstep.c [2023-12-03 01:34:27,583 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/data/6381306b0/3d55fd47fbc645e5a0cc377919f3d885/FLAGeca980139 [2023-12-03 01:34:27,597 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/data/6381306b0/3d55fd47fbc645e5a0cc377919f3d885 [2023-12-03 01:34:27,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:34:27,601 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:34:27,602 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:34:27,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:34:27,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:34:27,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:34:27" (1/1) ... [2023-12-03 01:34:27,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@206b61b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:34:27, skipping insertion in model container [2023-12-03 01:34:27,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:34:27" (1/1) ... [2023-12-03 01:34:27,674 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:34:27,854 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_af8f3f01-6015-4fdc-b8bf-80776eb4794c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.1.prop1-back-serstep.c[1172,1185] [2023-12-03 01:34:28,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:34:28,215 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:34:28,226 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_af8f3f01-6015-4fdc-b8bf-80776eb4794c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.1.prop1-back-serstep.c[1172,1185] [2023-12-03 01:34:28,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:34:28,471 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:34:28,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:34:28 WrapperNode [2023-12-03 01:34:28,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:34:28,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:34:28,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:34:28,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:34:28,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:34:28" (1/1) ... [2023-12-03 01:34:28,554 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:34:28" (1/1) ... [2023-12-03 01:34:29,153 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 7669 [2023-12-03 01:34:29,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:34:29,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:34:29,155 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:34:29,155 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:34:29,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:34:28" (1/1) ... [2023-12-03 01:34:29,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:34:28" (1/1) ... [2023-12-03 01:34:29,301 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:34:28" (1/1) ... [2023-12-03 01:34:29,301 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:34:28" (1/1) ... [2023-12-03 01:34:29,534 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:34:28" (1/1) ... [2023-12-03 01:34:29,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:34:28" (1/1) ... [2023-12-03 01:34:29,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:34:28" (1/1) ... [2023-12-03 01:34:29,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:34:28" (1/1) ... [2023-12-03 01:34:29,855 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:34:29,856 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:34:29,856 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:34:29,856 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:34:29,857 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:34:28" (1/1) ... [2023-12-03 01:34:29,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:34:29,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:34:29,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:34:29,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:34:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:34:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:34:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:34:29,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:34:30,328 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:34:30,330 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:34:35,074 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:34:44,561 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:34:44,561 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 01:34:44,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:34:44 BoogieIcfgContainer [2023-12-03 01:34:44,563 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:34:44,564 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:34:44,564 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:34:44,574 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:34:44,575 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:34:44" (1/1) ... [2023-12-03 01:34:44,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:34:44,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:34:44,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 01:34:44,629 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 01:34:44,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 01:34:44,631 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:34:44,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:34:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:34:47,668 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 01:34:57,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:35:08,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:35:09,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:35:11,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:35:12,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:35:15,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:35:20,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:35:20,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:35:20,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-03 01:35:20,738 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-03 01:35:20,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 01:35:20,739 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:35:20,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:40:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:40:24,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:45:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:45:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 01:45:40,516 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 01:45:40,519 INFO L158 Benchmark]: Toolchain (without parser) took 672917.87ms. Allocated memory was 161.5MB in the beginning and 4.4GB in the end (delta: 4.3GB). Free memory was 117.0MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2023-12-03 01:45:40,520 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 161.5MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:45:40,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 869.76ms. Allocated memory was 161.5MB in the beginning and 209.7MB in the end (delta: 48.2MB). Free memory was 116.5MB in the beginning and 134.8MB in the end (delta: -18.3MB). Peak memory consumption was 85.5MB. Max. memory is 16.1GB. [2023-12-03 01:45:40,521 INFO L158 Benchmark]: Boogie Procedure Inliner took 680.94ms. Allocated memory was 209.7MB in the beginning and 327.2MB in the end (delta: 117.4MB). Free memory was 134.8MB in the beginning and 162.8MB in the end (delta: -28.1MB). Peak memory consumption was 145.9MB. Max. memory is 16.1GB. [2023-12-03 01:45:40,522 INFO L158 Benchmark]: Boogie Preprocessor took 700.61ms. Allocated memory is still 327.2MB. Free memory was 162.8MB in the beginning and 116.2MB in the end (delta: 46.7MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. [2023-12-03 01:45:40,523 INFO L158 Benchmark]: RCFGBuilder took 14707.61ms. Allocated memory was 327.2MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 116.2MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 947.7MB. Max. memory is 16.1GB. [2023-12-03 01:45:40,523 INFO L158 Benchmark]: CodeCheck took 655954.04ms. Allocated memory was 2.2GB in the beginning and 4.4GB in the end (delta: 2.2GB). Free memory was 1.8GB in the beginning and 1.5GB in the end (delta: 302.2MB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2023-12-03 01:45:40,527 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 0.19ms. Allocated memory is still 161.5MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 869.76ms. Allocated memory was 161.5MB in the beginning and 209.7MB in the end (delta: 48.2MB). Free memory was 116.5MB in the beginning and 134.8MB in the end (delta: -18.3MB). Peak memory consumption was 85.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 680.94ms. Allocated memory was 209.7MB in the beginning and 327.2MB in the end (delta: 117.4MB). Free memory was 134.8MB in the beginning and 162.8MB in the end (delta: -28.1MB). Peak memory consumption was 145.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 700.61ms. Allocated memory is still 327.2MB. Free memory was 162.8MB in the beginning and 116.2MB in the end (delta: 46.7MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. * RCFGBuilder took 14707.61ms. Allocated memory was 327.2MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 116.2MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 947.7MB. Max. memory is 16.1GB. * CodeCheck took 655954.04ms. Allocated memory was 2.2GB in the beginning and 4.4GB in the end (delta: 2.2GB). Free memory was 1.8GB in the beginning and 1.5GB in the end (delta: 302.2MB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 01:45:40,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/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_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/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_af8f3f01-6015-4fdc-b8bf-80776eb4794c/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 cefa2896cdbe73db397004945d1c4c4e84fdeccf49e16275e9444234f8acb776 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:45:42,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:45:42,681 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-03 01:45:42,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:45:42,712 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:45:42,712 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:45:42,713 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:45:42,714 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:45:42,715 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:45:42,715 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:45:42,716 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:45:42,716 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:45:42,717 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:45:42,718 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:45:42,718 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 01:45:42,719 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 01:45:42,719 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 01:45:42,720 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:45:42,721 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:45:42,721 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:45:42,722 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:45:42,722 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:45:42,723 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:45:42,723 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 01:45:42,723 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:45:42,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:45:42,724 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:45:42,724 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:45:42,725 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:45:42,725 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 01:45:42,725 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:45:42,726 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:45:42,726 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 01:45:42,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 01:45:42,727 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_af8f3f01-6015-4fdc-b8bf-80776eb4794c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cefa2896cdbe73db397004945d1c4c4e84fdeccf49e16275e9444234f8acb776 [2023-12-03 01:45:43,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:45:43,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:45:43,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:45:43,046 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:45:43,046 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:45:43,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.1.prop1-back-serstep.c [2023-12-03 01:45:45,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:45:46,167 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:45:46,167 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.1.prop1-back-serstep.c [2023-12-03 01:45:46,186 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/data/aa67842a2/f88e052239534a4ab551c5e3f596b169/FLAG035124188 [2023-12-03 01:45:46,201 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/data/aa67842a2/f88e052239534a4ab551c5e3f596b169 [2023-12-03 01:45:46,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:45:46,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:45:46,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:45:46,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:45:46,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:45:46,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:45:46" (1/1) ... [2023-12-03 01:45:46,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f6ecfc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:46, skipping insertion in model container [2023-12-03 01:45:46,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:45:46" (1/1) ... [2023-12-03 01:45:46,288 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:45:46,468 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_af8f3f01-6015-4fdc-b8bf-80776eb4794c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.1.prop1-back-serstep.c[1172,1185] [2023-12-03 01:45:46,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:45:46,783 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:45:46,797 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_af8f3f01-6015-4fdc-b8bf-80776eb4794c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lann.1.prop1-back-serstep.c[1172,1185] [2023-12-03 01:45:46,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:45:46,959 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:45:46,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:46 WrapperNode [2023-12-03 01:45:46,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:45:46,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:45:46,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:45:46,962 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:45:46,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:46" (1/1) ... [2023-12-03 01:45:47,017 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:46" (1/1) ... [2023-12-03 01:45:47,121 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1997 [2023-12-03 01:45:47,122 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:45:47,122 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:45:47,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:45:47,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:45:47,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:46" (1/1) ... [2023-12-03 01:45:47,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:46" (1/1) ... [2023-12-03 01:45:47,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:46" (1/1) ... [2023-12-03 01:45:47,146 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:46" (1/1) ... [2023-12-03 01:45:47,214 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:46" (1/1) ... [2023-12-03 01:45:47,221 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:46" (1/1) ... [2023-12-03 01:45:47,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:46" (1/1) ... [2023-12-03 01:45:47,246 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:46" (1/1) ... [2023-12-03 01:45:47,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:45:47,262 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:45:47,263 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:45:47,263 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:45:47,263 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:45:46" (1/1) ... [2023-12-03 01:45:47,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:45:47,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:45:47,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:45:47,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:45:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:45:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 01:45:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:45:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:45:47,669 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:45:47,671 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:45:50,554 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:45:50,677 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:45:50,678 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 01:45:50,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:45:50 BoogieIcfgContainer [2023-12-03 01:45:50,679 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:45:50,680 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:45:50,680 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:45:50,690 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:45:50,691 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:45:50" (1/1) ... [2023-12-03 01:45:50,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:45:50,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:45:50,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 01:45:50,753 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 01:45:50,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 01:45:50,755 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:45:50,756 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:45:50,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:45:50,758 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:45:50,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 01:45:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:45:51,418 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:45:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:45:51,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 01:45:51,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:45:51,735 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 01:45:51,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 01:45:52,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:45:52,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-03 01:45:52,150 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-03 01:45:52,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 01:45:52,151 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:45:52,151 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:45:52,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:45:52,152 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:45:52,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 01:45:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:45:53,441 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:45:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:45:53,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 1704 conjuncts, 102 conjunts are in the unsatisfiable core [2023-12-03 01:45:53,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:45:56,053 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 01:45:56,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 01:45:59,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:45:59,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 01:45:59,453 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 01:45:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 01:45:59,454 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:45:59,454 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:45:59,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:45:59,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:45:59,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8f3f01-6015-4fdc-b8bf-80776eb4794c/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 01:46:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:46:01,179 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:46:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:46:02,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 3171 conjuncts, 262 conjunts are in the unsatisfiable core [2023-12-03 01:46:02,135 INFO L285 TraceCheckSpWp]: Computing forward predicates...