./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.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_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/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_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/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_6caba1e0-c933-407a-b99c-5d7b4ba89388/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 c6abec5a6583764a8362c70a5bac21c0e9e2f542b2a1252183bbdab281d68a5f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:48:18,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:48:18,930 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-03 00:48:18,935 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:48:18,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:48:18,958 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:48:18,959 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:48:18,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:48:18,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:48:18,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:48:18,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:48:18,962 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:48:18,962 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:48:18,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:48:18,963 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:48:18,963 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:48:18,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:48:18,964 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:48:18,965 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:48:18,966 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:48:18,966 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:48:18,967 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:48:18,967 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:48:18,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:48:18,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:48:18,969 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:48:18,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:48:18,969 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:48:18,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:48:18,970 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:48:18,971 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_6caba1e0-c933-407a-b99c-5d7b4ba89388/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6abec5a6583764a8362c70a5bac21c0e9e2f542b2a1252183bbdab281d68a5f [2023-12-03 00:48:19,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:48:19,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:48:19,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:48:19,215 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:48:19,215 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:48:19,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.c [2023-12-03 00:48:22,098 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:48:22,528 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:48:22,528 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.c [2023-12-03 00:48:22,562 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/data/fda158a5f/c0516cd8555f4b8fad2ed793b0faf1ca/FLAGe040b6ca2 [2023-12-03 00:48:22,577 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/data/fda158a5f/c0516cd8555f4b8fad2ed793b0faf1ca [2023-12-03 00:48:22,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:48:22,581 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:48:22,583 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:48:22,583 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:48:22,588 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:48:22,588 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:48:22" (1/1) ... [2023-12-03 00:48:22,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@662ef811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:48:22, skipping insertion in model container [2023-12-03 00:48:22,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:48:22" (1/1) ... [2023-12-03 00:48:22,752 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:48:23,011 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_6caba1e0-c933-407a-b99c-5d7b4ba89388/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.c[1173,1186] [2023-12-03 00:48:23,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:48:23,829 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:48:23,841 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_6caba1e0-c933-407a-b99c-5d7b4ba89388/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.c[1173,1186] [2023-12-03 00:48:24,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:48:24,666 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:48:24,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:48:24 WrapperNode [2023-12-03 00:48:24,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:48:24,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:48:24,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:48:24,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:48:24,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:48:24" (1/1) ... [2023-12-03 00:48:24,952 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:48:24" (1/1) ... [2023-12-03 00:48:27,346 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36527 [2023-12-03 00:48:27,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:48:27,347 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:48:27,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:48:27,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:48:27,357 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:48:24" (1/1) ... [2023-12-03 00:48:27,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:48:24" (1/1) ... [2023-12-03 00:48:27,824 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:48:24" (1/1) ... [2023-12-03 00:48:27,824 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:48:24" (1/1) ... [2023-12-03 00:48:28,448 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:48:24" (1/1) ... [2023-12-03 00:48:28,696 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:48:24" (1/1) ... [2023-12-03 00:48:28,956 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:48:24" (1/1) ... [2023-12-03 00:48:29,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:48:24" (1/1) ... [2023-12-03 00:48:29,489 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:48:29,490 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:48:29,490 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:48:29,490 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:48:29,491 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:48:24" (1/1) ... [2023-12-03 00:48:29,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:48:29,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:48:29,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:48:29,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:48:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:48:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:48:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:48:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:48:30,975 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:48:30,979 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:48:47,292 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:50:05,478 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:50:05,478 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 00:50:05,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:50:05 BoogieIcfgContainer [2023-12-03 00:50:05,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:50:05,481 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:50:05,481 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:50:05,489 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:50:05,489 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:50:05" (1/1) ... [2023-12-03 00:50:05,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:50:05,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:50:05,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 00:50:05,542 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 00:50:05,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 00:50:05,544 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:50:05,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:50:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:50:21,926 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 00:50:34,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 00:50:44,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 00:50:49,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.96s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:50:56,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:50:57,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:51:07,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:51:17,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:51:17,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:51:17,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-03 00:51:17,453 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-03 00:51:17,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 00:51:17,454 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:51:17,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:51:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 00:51:32,580 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 00:51:32,584 INFO L158 Benchmark]: Toolchain (without parser) took 190002.28ms. Allocated memory was 165.7MB in the beginning and 10.1GB in the end (delta: 10.0GB). Free memory was 105.4MB in the beginning and 7.9GB in the end (delta: -7.8GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2023-12-03 00:51:32,584 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 102.8MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:51:32,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2084.94ms. Allocated memory was 165.7MB in the beginning and 354.4MB in the end (delta: 188.7MB). Free memory was 105.0MB in the beginning and 146.1MB in the end (delta: -41.1MB). Peak memory consumption was 151.2MB. Max. memory is 16.1GB. [2023-12-03 00:51:32,586 INFO L158 Benchmark]: Boogie Procedure Inliner took 2678.68ms. Allocated memory was 354.4MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 146.1MB in the beginning and 964.0MB in the end (delta: -817.9MB). Peak memory consumption was 446.7MB. Max. memory is 16.1GB. [2023-12-03 00:51:32,587 INFO L158 Benchmark]: Boogie Preprocessor took 2141.68ms. Allocated memory was 1.5GB in the beginning and 4.5GB in the end (delta: 3.0GB). Free memory was 964.0MB in the beginning and 3.8GB in the end (delta: -2.8GB). Peak memory consumption was 251.7MB. Max. memory is 16.1GB. [2023-12-03 00:51:32,587 INFO L158 Benchmark]: RCFGBuilder took 95990.40ms. Allocated memory was 4.5GB in the beginning and 9.4GB in the end (delta: 4.9GB). Free memory was 3.8GB in the beginning and 7.2GB in the end (delta: -3.4GB). Peak memory consumption was 4.9GB. Max. memory is 16.1GB. [2023-12-03 00:51:32,588 INFO L158 Benchmark]: CodeCheck took 87101.54ms. Allocated memory was 9.4GB in the beginning and 10.1GB in the end (delta: 721.4MB). Free memory was 7.2GB in the beginning and 7.9GB in the end (delta: -668.9MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2023-12-03 00:51:32,593 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 0.24ms. Allocated memory is still 102.8MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2084.94ms. Allocated memory was 165.7MB in the beginning and 354.4MB in the end (delta: 188.7MB). Free memory was 105.0MB in the beginning and 146.1MB in the end (delta: -41.1MB). Peak memory consumption was 151.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 2678.68ms. Allocated memory was 354.4MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 146.1MB in the beginning and 964.0MB in the end (delta: -817.9MB). Peak memory consumption was 446.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 2141.68ms. Allocated memory was 1.5GB in the beginning and 4.5GB in the end (delta: 3.0GB). Free memory was 964.0MB in the beginning and 3.8GB in the end (delta: -2.8GB). Peak memory consumption was 251.7MB. Max. memory is 16.1GB. * RCFGBuilder took 95990.40ms. Allocated memory was 4.5GB in the beginning and 9.4GB in the end (delta: 4.9GB). Free memory was 3.8GB in the beginning and 7.2GB in the end (delta: -3.4GB). Peak memory consumption was 4.9GB. Max. memory is 16.1GB. * CodeCheck took 87101.54ms. Allocated memory was 9.4GB in the beginning and 10.1GB in the end (delta: 721.4MB). Free memory was 7.2GB in the beginning and 7.9GB in the end (delta: -668.9MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 00:51:32,803 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-03 00:51:32,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/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_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/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_6caba1e0-c933-407a-b99c-5d7b4ba89388/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 c6abec5a6583764a8362c70a5bac21c0e9e2f542b2a1252183bbdab281d68a5f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:51:35,130 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:51:35,210 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-03 00:51:35,242 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:51:35,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:51:35,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:51:35,244 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:51:35,245 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:51:35,245 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:51:35,246 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:51:35,247 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:51:35,247 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:51:35,248 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:51:35,248 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:51:35,249 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 00:51:35,249 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 00:51:35,250 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 00:51:35,250 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:51:35,251 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:51:35,251 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:51:35,252 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:51:35,253 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:51:35,253 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:51:35,253 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 00:51:35,254 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:51:35,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:51:35,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:51:35,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:51:35,256 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:51:35,256 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 00:51:35,257 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:51:35,257 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:51:35,257 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 00:51:35,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 00:51:35,258 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_6caba1e0-c933-407a-b99c-5d7b4ba89388/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6abec5a6583764a8362c70a5bac21c0e9e2f542b2a1252183bbdab281d68a5f [2023-12-03 00:51:35,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:51:35,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:51:35,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:51:35,582 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:51:35,583 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:51:35,584 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.c [2023-12-03 00:51:38,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:51:38,728 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:51:38,728 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.c [2023-12-03 00:51:38,753 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/data/b6d685076/a1b5a799d4b04d38aa9e3161efb7656c/FLAGc634269aa [2023-12-03 00:51:38,765 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/data/b6d685076/a1b5a799d4b04d38aa9e3161efb7656c [2023-12-03 00:51:38,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:51:38,769 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:51:38,770 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:51:38,770 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:51:38,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:51:38,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:51:38" (1/1) ... [2023-12-03 00:51:38,776 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ad5e259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:51:38, skipping insertion in model container [2023-12-03 00:51:38,776 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:51:38" (1/1) ... [2023-12-03 00:51:38,924 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:51:39,191 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_6caba1e0-c933-407a-b99c-5d7b4ba89388/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.c[1173,1186] [2023-12-03 00:51:39,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:51:39,893 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:51:39,905 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_6caba1e0-c933-407a-b99c-5d7b4ba89388/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.c[1173,1186] [2023-12-03 00:51:40,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:51:40,468 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:51:40,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:51:40 WrapperNode [2023-12-03 00:51:40,468 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:51:40,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:51:40,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:51:40,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:51:40,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:51:40" (1/1) ... [2023-12-03 00:51:40,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:51:40" (1/1) ... [2023-12-03 00:51:40,935 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 9172 [2023-12-03 00:51:40,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:51:40,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:51:40,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:51:40,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:51:40,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:51:40" (1/1) ... [2023-12-03 00:51:40,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:51:40" (1/1) ... [2023-12-03 00:51:41,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:51:40" (1/1) ... [2023-12-03 00:51:41,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:51:40" (1/1) ... [2023-12-03 00:51:41,209 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:51:40" (1/1) ... [2023-12-03 00:51:41,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:51:40" (1/1) ... [2023-12-03 00:51:41,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:51:40" (1/1) ... [2023-12-03 00:51:41,329 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:51:40" (1/1) ... [2023-12-03 00:51:41,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:51:41,414 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:51:41,414 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:51:41,414 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:51:41,415 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:51:40" (1/1) ... [2023-12-03 00:51:41,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:51:41,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:51:41,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:51:41,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:51:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:51:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 00:51:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:51:41,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:51:42,639 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:51:42,642 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:52:22,858 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:52:23,238 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:52:23,238 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 00:52:23,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:52:23 BoogieIcfgContainer [2023-12-03 00:52:23,239 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:52:23,240 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:52:23,240 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:52:23,248 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:52:23,248 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:52:23" (1/1) ... [2023-12-03 00:52:23,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:52:23,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:52:23,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 00:52:23,308 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 00:52:23,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 00:52:23,310 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:52:23,311 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:52:23,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:52:23,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:52:23,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 00:52:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:52:25,396 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:52:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:52:25,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 00:52:26,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:52:26,338 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 00:52:26,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 00:52:37,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:52:47,616 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 00:52:48,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:52:48,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-03 00:52:48,245 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-03 00:52:48,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 00:52:48,245 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:52:48,246 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:52:48,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:52:48,247 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:52:48,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 00:52:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:52:57,947 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:53:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:53:01,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 7822 conjuncts, 141 conjunts are in the unsatisfiable core [2023-12-03 00:53:01,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:53:02,746 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 00:53:02,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 00:53:14,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:53:26,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:53:39,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:53:49,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:53:59,662 WARN L539 Checker$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 00:54:09,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:54:19,731 WARN L539 Checker$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 00:54:29,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:54:42,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:54:44,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:54:54,222 WARN L539 Checker$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 00:55:04,260 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 00:55:04,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:55:04,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-03 00:55:04,722 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-03 00:55:04,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 00:55:04,724 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:55:04,724 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:55:04,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:55:04,726 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:55:04,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6caba1e0-c933-407a-b99c-5d7b4ba89388/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 00:55:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:55:21,905 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:55:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:55:28,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 15058 conjuncts, 1310 conjunts are in the unsatisfiable core [2023-12-03 00:55:28,336 INFO L285 TraceCheckSpWp]: Computing forward predicates...