./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.3.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b --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 e129eaa418e42a59a18e62046b963298a7f1db0112a39df73e3b8dca77b20c4e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 02:45:34,800 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:45:34,852 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-12-06 02:45:34,856 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 02:45:34,857 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 02:45:34,874 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:45:34,875 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:45:34,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:45:34,875 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:45:34,875 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:45:34,875 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:45:34,876 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:45:34,876 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 02:45:34,876 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:45:34,876 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:45:34,876 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:45:34,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:45:34,876 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:45:34,876 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:45:34,876 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:45:34,876 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:45:34,876 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:45:34,876 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:45:34,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:45:34,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:45:34,877 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:45:34,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:45:34,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:45:34,877 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 02:45:34,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 02:45:34,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b 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 -> e129eaa418e42a59a18e62046b963298a7f1db0112a39df73e3b8dca77b20c4e [2024-12-06 02:45:35,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:45:35,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:45:35,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:45:35,104 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:45:35,104 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:45:35,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.3.prop1-back-serstep.c [2024-12-06 02:45:37,779 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/data/f784c9d0c/d57f2e1a29c0408194cc35840fa2b9f3/FLAG6102b72a5 [2024-12-06 02:45:38,032 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:45:38,033 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.3.prop1-back-serstep.c [2024-12-06 02:45:38,044 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/data/f784c9d0c/d57f2e1a29c0408194cc35840fa2b9f3/FLAG6102b72a5 [2024-12-06 02:45:38,055 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/data/f784c9d0c/d57f2e1a29c0408194cc35840fa2b9f3 [2024-12-06 02:45:38,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:45:38,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:45:38,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:45:38,059 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:45:38,064 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:45:38,064 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:45:38" (1/1) ... [2024-12-06 02:45:38,065 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df1ea73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:45:38, skipping insertion in model container [2024-12-06 02:45:38,065 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:45:38" (1/1) ... [2024-12-06 02:45:38,108 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:45:38,271 WARN L250 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_1edcb961-e179-4304-8395-c4ca2d3df5ea/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.3.prop1-back-serstep.c[1177,1190] [2024-12-06 02:45:38,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:45:38,517 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:45:38,523 WARN L250 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_1edcb961-e179-4304-8395-c4ca2d3df5ea/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.3.prop1-back-serstep.c[1177,1190] [2024-12-06 02:45:38,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:45:38,709 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:45:38,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:45:38 WrapperNode [2024-12-06 02:45:38,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:45:38,710 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:45:38,710 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:45:38,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:45:38,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:45:38" (1/1) ... [2024-12-06 02:45:38,763 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:45:38" (1/1) ... [2024-12-06 02:45:39,247 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5691 [2024-12-06 02:45:39,247 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:45:39,248 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:45:39,248 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:45:39,248 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:45:39,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:45:38" (1/1) ... [2024-12-06 02:45:39,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:45:38" (1/1) ... [2024-12-06 02:45:39,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:45:38" (1/1) ... [2024-12-06 02:45:39,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:45:38" (1/1) ... [2024-12-06 02:45:39,538 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:45:38" (1/1) ... [2024-12-06 02:45:39,559 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:45:38" (1/1) ... [2024-12-06 02:45:39,582 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:45:38" (1/1) ... [2024-12-06 02:45:39,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:45:38" (1/1) ... [2024-12-06 02:45:39,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:45:38" (1/1) ... [2024-12-06 02:45:39,723 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:45:39,724 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:45:39,724 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:45:39,724 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:45:39,725 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:45:38" (1/1) ... [2024-12-06 02:45:39,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:45:39,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:45:39,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:45:39,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:45:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:45:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 02:45:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:45:39,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:45:40,128 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:45:40,130 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:45:46,819 INFO L? ?]: Removed 3054 outVars from TransFormulas that were not future-live. [2024-12-06 02:45:46,820 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:45:53,835 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:45:53,835 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 02:45:53,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:45:53 BoogieIcfgContainer [2024-12-06 02:45:53,836 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:45:53,836 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:45:53,836 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:45:53,843 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:45:53,843 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:45:53" (1/1) ... [2024-12-06 02:45:53,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:45:53,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:45:53,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-06 02:45:53,898 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-06 02:45:53,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 02:45:53,900 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:45:53,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:45:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:45:57,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:46:07,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 02:46:17,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 02:46:18,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 02:46:20,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 02:46:30,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-06 02:46:31,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:46:31,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2024-12-06 02:46:31,003 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2024-12-06 02:46:31,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 02:46:31,003 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:46:31,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:47:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:47:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:47:28,125 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:485) 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) [2024-12-06 02:47:28,130 INFO L158 Benchmark]: Toolchain (without parser) took 110071.78ms. Allocated memory was 117.4MB in the beginning and 3.1GB in the end (delta: 3.0GB). Free memory was 89.7MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 691.8MB. Max. memory is 16.1GB. [2024-12-06 02:47:28,130 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.7MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:47:28,131 INFO L158 Benchmark]: CACSL2BoogieTranslator took 650.64ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 63.6MB in the end (delta: 26.1MB). Peak memory consumption was 86.2MB. Max. memory is 16.1GB. [2024-12-06 02:47:28,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 537.32ms. Allocated memory was 117.4MB in the beginning and 302.0MB in the end (delta: 184.5MB). Free memory was 63.5MB in the beginning and 150.4MB in the end (delta: -86.9MB). Peak memory consumption was 90.7MB. Max. memory is 16.1GB. [2024-12-06 02:47:28,132 INFO L158 Benchmark]: Boogie Preprocessor took 475.24ms. Allocated memory is still 302.0MB. Free memory was 150.4MB in the beginning and 139.0MB in the end (delta: 11.4MB). Peak memory consumption was 88.8MB. Max. memory is 16.1GB. [2024-12-06 02:47:28,133 INFO L158 Benchmark]: RCFGBuilder took 14111.85ms. Allocated memory was 302.0MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 139.0MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 790.7MB. Max. memory is 16.1GB. [2024-12-06 02:47:28,133 INFO L158 Benchmark]: CodeCheck took 94292.62ms. Allocated memory was 2.2GB in the beginning and 3.1GB in the end (delta: 897.6MB). Free memory was 1.9GB in the beginning and 2.4GB in the end (delta: -541.8MB). Peak memory consumption was 359.8MB. Max. memory is 16.1GB. [2024-12-06 02:47:28,136 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:485) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.7MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 650.64ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 63.6MB in the end (delta: 26.1MB). Peak memory consumption was 86.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 537.32ms. Allocated memory was 117.4MB in the beginning and 302.0MB in the end (delta: 184.5MB). Free memory was 63.5MB in the beginning and 150.4MB in the end (delta: -86.9MB). Peak memory consumption was 90.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 475.24ms. Allocated memory is still 302.0MB. Free memory was 150.4MB in the beginning and 139.0MB in the end (delta: 11.4MB). Peak memory consumption was 88.8MB. Max. memory is 16.1GB. * RCFGBuilder took 14111.85ms. Allocated memory was 302.0MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 139.0MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 790.7MB. Max. memory is 16.1GB. * CodeCheck took 94292.62ms. Allocated memory was 2.2GB in the beginning and 3.1GB in the end (delta: 897.6MB). Free memory was 1.9GB in the beginning and 2.4GB in the end (delta: -541.8MB). Peak memory consumption was 359.8MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-12-06 02:47:28,345 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2024-12-06 02:47:28,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b --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 e129eaa418e42a59a18e62046b963298a7f1db0112a39df73e3b8dca77b20c4e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 02:47:30,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:47:30,388 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2024-12-06 02:47:30,414 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:47:30,414 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:47:30,415 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:47:30,415 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:47:30,415 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:47:30,415 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:47:30,415 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:47:30,416 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:47:30,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:47:30,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:47:30,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:47:30,416 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 02:47:30,416 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 02:47:30,416 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 02:47:30,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:47:30,416 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:47:30,416 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:47:30,417 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:47:30,417 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:47:30,417 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:47:30,417 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 02:47:30,417 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 02:47:30,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:47:30,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:47:30,417 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:47:30,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:47:30,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:47:30,417 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 02:47:30,418 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 02:47:30,418 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 02:47:30,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b 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 -> e129eaa418e42a59a18e62046b963298a7f1db0112a39df73e3b8dca77b20c4e [2024-12-06 02:47:30,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:47:30,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:47:30,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:47:30,687 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:47:30,687 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:47:30,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.3.prop1-back-serstep.c [2024-12-06 02:47:33,381 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/data/9ec82db0c/c815a16b2f5d4c0a9ff4ebe97678265b/FLAG3774c1909 [2024-12-06 02:47:33,629 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:47:33,630 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.3.prop1-back-serstep.c [2024-12-06 02:47:33,643 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/data/9ec82db0c/c815a16b2f5d4c0a9ff4ebe97678265b/FLAG3774c1909 [2024-12-06 02:47:33,657 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/data/9ec82db0c/c815a16b2f5d4c0a9ff4ebe97678265b [2024-12-06 02:47:33,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:47:33,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:47:33,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:47:33,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:47:33,667 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:47:33,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:47:33" (1/1) ... [2024-12-06 02:47:33,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486a71ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:47:33, skipping insertion in model container [2024-12-06 02:47:33,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:47:33" (1/1) ... [2024-12-06 02:47:33,705 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:47:33,863 WARN L250 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_1edcb961-e179-4304-8395-c4ca2d3df5ea/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.3.prop1-back-serstep.c[1177,1190] [2024-12-06 02:47:34,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:47:34,097 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:47:34,104 WARN L250 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_1edcb961-e179-4304-8395-c4ca2d3df5ea/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.protocols.3.prop1-back-serstep.c[1177,1190] [2024-12-06 02:47:34,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:47:34,222 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:47:34,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:47:34 WrapperNode [2024-12-06 02:47:34,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:47:34,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:47:34,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:47:34,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:47:34,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:47:34" (1/1) ... [2024-12-06 02:47:34,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:47:34" (1/1) ... [2024-12-06 02:47:34,330 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1755 [2024-12-06 02:47:34,330 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:47:34,331 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:47:34,331 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:47:34,331 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:47:34,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:47:34" (1/1) ... [2024-12-06 02:47:34,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:47:34" (1/1) ... [2024-12-06 02:47:34,348 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:47:34" (1/1) ... [2024-12-06 02:47:34,348 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:47:34" (1/1) ... [2024-12-06 02:47:34,379 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:47:34" (1/1) ... [2024-12-06 02:47:34,382 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:47:34" (1/1) ... [2024-12-06 02:47:34,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:47:34" (1/1) ... [2024-12-06 02:47:34,392 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:47:34" (1/1) ... [2024-12-06 02:47:34,398 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:47:34" (1/1) ... [2024-12-06 02:47:34,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:47:34,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:47:34,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:47:34,412 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:47:34,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:47:34" (1/1) ... [2024-12-06 02:47:34,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:47:34,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:47:34,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:47:34,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:47:34,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:47:34,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 02:47:34,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:47:34,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:47:34,791 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:47:34,793 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:47:36,641 INFO L? ?]: Removed 211 outVars from TransFormulas that were not future-live. [2024-12-06 02:47:36,641 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:47:36,698 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:47:36,698 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 02:47:36,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:47:36 BoogieIcfgContainer [2024-12-06 02:47:36,699 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:47:36,699 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:47:36,699 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:47:36,707 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:47:36,707 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:47:36" (1/1) ... [2024-12-06 02:47:36,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:47:36,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:47:36,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-06 02:47:36,751 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-06 02:47:36,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 02:47:36,752 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:47:36,753 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 02:47:36,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 02:47:36,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 02:47:36,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 02:47:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:47:37,326 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 02:47:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:47:37,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-06 02:47:37,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:47:37,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:47:37,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 02:47:37,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:47:37,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2024-12-06 02:47:37,921 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2024-12-06 02:47:37,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 02:47:37,922 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:47:37,922 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 02:47:37,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 02:47:37,924 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 02:47:37,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edcb961-e179-4304-8395-c4ca2d3df5ea/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 02:47:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:47:39,066 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 02:47:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:47:39,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-12-06 02:47:39,468 INFO L279 TraceCheckSpWp]: Computing forward predicates...