./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.7.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_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/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_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.7.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/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_661e3b5e-9798-46f5-8597-46b8567fd311/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 1fce3ed74716f3f59c3fa2884d7c5494e1e275b70dea673513aba192c84a625f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:23:53,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:23:53,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-03 03:23:53,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:23:53,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:23:53,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:23:53,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:23:53,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:23:53,899 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:23:53,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:23:53,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:23:53,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:23:53,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:23:53,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:23:53,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:23:53,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:23:53,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:23:53,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:23:53,904 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:23:53,905 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:23:53,905 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:23:53,907 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:23:53,907 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:23:53,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:23:53,908 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:23:53,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:23:53,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:23:53,909 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:23:53,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:23:53,910 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:23:53,910 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_661e3b5e-9798-46f5-8597-46b8567fd311/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fce3ed74716f3f59c3fa2884d7c5494e1e275b70dea673513aba192c84a625f [2023-12-03 03:23:54,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:23:54,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:23:54,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:23:54,131 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:23:54,132 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:23:54,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.7.prop1-back-serstep.c [2023-12-03 03:23:56,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:23:57,295 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:23:57,296 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.7.prop1-back-serstep.c [2023-12-03 03:23:57,328 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/data/29997cdf5/75420598c9fb4914bacd684c94615fb7/FLAG34651e7ee [2023-12-03 03:23:57,343 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/data/29997cdf5/75420598c9fb4914bacd684c94615fb7 [2023-12-03 03:23:57,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:23:57,347 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:23:57,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:23:57,349 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:23:57,354 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:23:57,355 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:23:57" (1/1) ... [2023-12-03 03:23:57,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e50731b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:23:57, skipping insertion in model container [2023-12-03 03:23:57,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:23:57" (1/1) ... [2023-12-03 03:23:57,456 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:23:57,678 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_661e3b5e-9798-46f5-8597-46b8567fd311/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.7.prop1-back-serstep.c[1170,1183] [2023-12-03 03:23:58,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:23:58,366 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:23:58,377 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_661e3b5e-9798-46f5-8597-46b8567fd311/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.7.prop1-back-serstep.c[1170,1183] [2023-12-03 03:23:58,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:23:58,804 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:23:58,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:23:58 WrapperNode [2023-12-03 03:23:58,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:23:58,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:23:58,806 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:23:58,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:23:58,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:23:58" (1/1) ... [2023-12-03 03:23:58,958 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:23:58" (1/1) ... [2023-12-03 03:24:00,551 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22902 [2023-12-03 03:24:00,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:24:00,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:24:00,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:24:00,553 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:24:00,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:23:58" (1/1) ... [2023-12-03 03:24:00,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:23:58" (1/1) ... [2023-12-03 03:24:01,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:23:58" (1/1) ... [2023-12-03 03:24:01,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:23:58" (1/1) ... [2023-12-03 03:24:01,387 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:23:58" (1/1) ... [2023-12-03 03:24:01,458 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:23:58" (1/1) ... [2023-12-03 03:24:01,563 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:23:58" (1/1) ... [2023-12-03 03:24:01,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:23:58" (1/1) ... [2023-12-03 03:24:02,047 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:24:02,048 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:24:02,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:24:02,048 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:24:02,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:23:58" (1/1) ... [2023-12-03 03:24:02,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:24:02,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:24:02,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:24:02,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:24:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:24:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:24:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:24:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:24:03,068 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:24:03,070 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:24:15,190 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:24:49,507 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:24:49,508 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 03:24:49,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:24:49 BoogieIcfgContainer [2023-12-03 03:24:49,509 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:24:49,510 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:24:49,510 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:24:49,517 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:24:49,517 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:24:49" (1/1) ... [2023-12-03 03:24:49,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:24:49,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:24:49,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 03:24:49,569 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 03:24:49,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 03:24:49,570 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:24:49,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:24:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:25:09,426 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 03:25:20,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 03:25:30,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 03:25:40,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:25:50,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:26:01,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:26:04,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:26:14,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:26:15,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:26:15,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-03 03:26:15,039 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-03 03:26:15,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 03:26:15,039 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:26:15,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:26:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 03:26:29,090 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 03:26:29,094 INFO L158 Benchmark]: Toolchain (without parser) took 151746.27ms. Allocated memory was 155.2MB in the beginning and 7.5GB in the end (delta: 7.4GB). Free memory was 114.0MB in the beginning and 6.1GB in the end (delta: -6.0GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2023-12-03 03:26:29,094 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory was 68.8MB in the beginning and 68.6MB in the end (delta: 160.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:26:29,095 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1456.42ms. Allocated memory was 155.2MB in the beginning and 218.1MB in the end (delta: 62.9MB). Free memory was 114.0MB in the beginning and 73.3MB in the end (delta: 40.7MB). Peak memory consumption was 122.2MB. Max. memory is 16.1GB. [2023-12-03 03:26:29,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 1746.13ms. Allocated memory was 218.1MB in the beginning and 729.8MB in the end (delta: 511.7MB). Free memory was 73.3MB in the beginning and 330.9MB in the end (delta: -257.6MB). Peak memory consumption was 311.5MB. Max. memory is 16.1GB. [2023-12-03 03:26:29,097 INFO L158 Benchmark]: Boogie Preprocessor took 1494.48ms. Allocated memory was 729.8MB in the beginning and 2.2GB in the end (delta: 1.5GB). Free memory was 330.9MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 200.6MB. Max. memory is 16.1GB. [2023-12-03 03:26:29,098 INFO L158 Benchmark]: RCFGBuilder took 47461.59ms. Allocated memory was 2.2GB in the beginning and 6.4GB in the end (delta: 4.2GB). Free memory was 1.7GB in the beginning and 4.9GB in the end (delta: -3.2GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. [2023-12-03 03:26:29,098 INFO L158 Benchmark]: CodeCheck took 99582.90ms. Allocated memory was 6.4GB in the beginning and 7.5GB in the end (delta: 1.1GB). Free memory was 4.9GB in the beginning and 6.1GB in the end (delta: -1.3GB). Peak memory consumption was 576.2MB. Max. memory is 16.1GB. [2023-12-03 03:26:29,102 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 0.15ms. Allocated memory is still 113.2MB. Free memory was 68.8MB in the beginning and 68.6MB in the end (delta: 160.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1456.42ms. Allocated memory was 155.2MB in the beginning and 218.1MB in the end (delta: 62.9MB). Free memory was 114.0MB in the beginning and 73.3MB in the end (delta: 40.7MB). Peak memory consumption was 122.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1746.13ms. Allocated memory was 218.1MB in the beginning and 729.8MB in the end (delta: 511.7MB). Free memory was 73.3MB in the beginning and 330.9MB in the end (delta: -257.6MB). Peak memory consumption was 311.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1494.48ms. Allocated memory was 729.8MB in the beginning and 2.2GB in the end (delta: 1.5GB). Free memory was 330.9MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 200.6MB. Max. memory is 16.1GB. * RCFGBuilder took 47461.59ms. Allocated memory was 2.2GB in the beginning and 6.4GB in the end (delta: 4.2GB). Free memory was 1.7GB in the beginning and 4.9GB in the end (delta: -3.2GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. * CodeCheck took 99582.90ms. Allocated memory was 6.4GB in the beginning and 7.5GB in the end (delta: 1.1GB). Free memory was 4.9GB in the beginning and 6.1GB in the end (delta: -1.3GB). Peak memory consumption was 576.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 03:26:29,315 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-03 03:26:29,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/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_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/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_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.7.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/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_661e3b5e-9798-46f5-8597-46b8567fd311/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 1fce3ed74716f3f59c3fa2884d7c5494e1e275b70dea673513aba192c84a625f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:26:31,413 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:26:31,491 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-03 03:26:31,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:26:31,522 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:26:31,522 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:26:31,523 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:26:31,523 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:26:31,524 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:26:31,524 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:26:31,525 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:26:31,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:26:31,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:26:31,527 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:26:31,527 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 03:26:31,528 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 03:26:31,528 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 03:26:31,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:26:31,530 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:26:31,530 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:26:31,531 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:26:31,532 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:26:31,532 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:26:31,533 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 03:26:31,533 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:26:31,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:26:31,534 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:26:31,534 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:26:31,535 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:26:31,535 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 03:26:31,536 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:26:31,536 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:26:31,536 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 03:26:31,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 03:26:31,537 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_661e3b5e-9798-46f5-8597-46b8567fd311/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fce3ed74716f3f59c3fa2884d7c5494e1e275b70dea673513aba192c84a625f [2023-12-03 03:26:31,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:26:31,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:26:31,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:26:31,836 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:26:31,837 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:26:31,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.7.prop1-back-serstep.c [2023-12-03 03:26:34,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:26:35,028 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:26:35,029 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.7.prop1-back-serstep.c [2023-12-03 03:26:35,067 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/data/555c70e95/6e97e8ac09c14e51879f7835000860cd/FLAGeb86ce5e2 [2023-12-03 03:26:35,081 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/data/555c70e95/6e97e8ac09c14e51879f7835000860cd [2023-12-03 03:26:35,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:26:35,085 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:26:35,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:26:35,087 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:26:35,091 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:26:35,092 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:26:35" (1/1) ... [2023-12-03 03:26:35,094 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f3e891a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:26:35, skipping insertion in model container [2023-12-03 03:26:35,094 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:26:35" (1/1) ... [2023-12-03 03:26:35,233 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:26:35,473 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_661e3b5e-9798-46f5-8597-46b8567fd311/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.7.prop1-back-serstep.c[1170,1183] [2023-12-03 03:26:36,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:26:36,040 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:26:36,051 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_661e3b5e-9798-46f5-8597-46b8567fd311/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.7.prop1-back-serstep.c[1170,1183] [2023-12-03 03:26:36,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:26:36,375 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:26:36,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:26:36 WrapperNode [2023-12-03 03:26:36,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:26:36,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:26:36,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:26:36,377 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:26:36,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:26:36" (1/1) ... [2023-12-03 03:26:36,472 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:26:36" (1/1) ... [2023-12-03 03:26:36,685 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6019 [2023-12-03 03:26:36,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:26:36,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:26:36,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:26:36,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:26:36,696 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:26:36" (1/1) ... [2023-12-03 03:26:36,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:26:36" (1/1) ... [2023-12-03 03:26:36,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:26:36" (1/1) ... [2023-12-03 03:26:36,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:26:36" (1/1) ... [2023-12-03 03:26:36,810 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:26:36" (1/1) ... [2023-12-03 03:26:36,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:26:36" (1/1) ... [2023-12-03 03:26:36,873 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:26:36" (1/1) ... [2023-12-03 03:26:36,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:26:36" (1/1) ... [2023-12-03 03:26:36,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:26:36,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:26:36,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:26:36,915 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:26:36,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:26:36" (1/1) ... [2023-12-03 03:26:36,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:26:36,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:26:36,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:26:36,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:26:36,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:26:36,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 03:26:36,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:26:36,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:26:37,776 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:26:37,778 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:26:48,676 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:26:48,975 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:26:48,975 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 03:26:48,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:26:48 BoogieIcfgContainer [2023-12-03 03:26:48,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:26:48,978 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:26:48,978 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:26:48,988 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:26:48,988 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:26:48" (1/1) ... [2023-12-03 03:26:48,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:26:49,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:26:49,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 03:26:49,049 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 03:26:49,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 03:26:49,051 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:26:49,052 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:26:49,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:26:49,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:26:49,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 03:26:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:26:50,606 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:26:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:26:51,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 03:26:51,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:26:51,268 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 03:26:51,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 03:26:52,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:26:52,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-03 03:26:52,386 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-03 03:26:52,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 03:26:52,386 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:26:52,386 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:26:52,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:26:52,388 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:26:52,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 03:26:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:26:56,028 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:26:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:26:57,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 5154 conjuncts, 224 conjunts are in the unsatisfiable core [2023-12-03 03:26:57,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:27:09,471 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 03:27:09,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 03:27:11,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:27:13,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:27:22,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 03:27:24,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 03:27:25,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:27:25,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-03 03:27:25,107 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-03 03:27:25,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 03:27:25,109 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:27:25,110 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:27:25,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:27:25,111 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:27:25,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661e3b5e-9798-46f5-8597-46b8567fd311/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 03:27:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:27:31,943 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:27:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:27:36,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 9667 conjuncts, 1811 conjunts are in the unsatisfiable core [2023-12-03 03:27:36,444 INFO L285 TraceCheckSpWp]: Computing forward predicates...