./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.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_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3 --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 4bfade33d4de709e97835beb78d2e683cfe9c604c744b3fd2faff7e2a5309be2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 05:26:15,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 05:26:15,825 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-64bit-Kojak_Default.epf [2024-11-25 05:26:15,830 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 05:26:15,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 05:26:15,874 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 05:26:15,875 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 05:26:15,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 05:26:15,876 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 05:26:15,876 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 05:26:15,877 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 05:26:15,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 05:26:15,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 05:26:15,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 05:26:15,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 05:26:15,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 05:26:15,878 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 05:26:15,879 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 05:26:15,879 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 05:26:15,879 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 05:26:15,879 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 05:26:15,880 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 05:26:15,880 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 05:26:15,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 05:26:15,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:26:15,880 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 05:26:15,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 05:26:15,881 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 05:26:15,881 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 05:26:15,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 05:26:15,881 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_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3 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 -> 4bfade33d4de709e97835beb78d2e683cfe9c604c744b3fd2faff7e2a5309be2 [2024-11-25 05:26:16,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 05:26:16,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 05:26:16,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 05:26:16,204 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 05:26:16,204 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 05:26:16,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c [2024-11-25 05:26:19,294 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/data/5ebf4674a/939a7514fe0f40b3bd4a222b81c42daa/FLAG31992ce65 [2024-11-25 05:26:19,863 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 05:26:19,864 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c [2024-11-25 05:26:19,894 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/data/5ebf4674a/939a7514fe0f40b3bd4a222b81c42daa/FLAG31992ce65 [2024-11-25 05:26:20,370 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/data/5ebf4674a/939a7514fe0f40b3bd4a222b81c42daa [2024-11-25 05:26:20,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 05:26:20,375 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 05:26:20,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 05:26:20,377 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 05:26:20,381 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 05:26:20,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:26:20" (1/1) ... [2024-11-25 05:26:20,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6456fc5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:20, skipping insertion in model container [2024-11-25 05:26:20,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:26:20" (1/1) ... [2024-11-25 05:26:20,463 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 05:26:20,706 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_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c[1173,1186] [2024-11-25 05:26:21,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:26:21,380 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 05:26:21,392 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_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c[1173,1186] [2024-11-25 05:26:21,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:26:21,775 INFO L204 MainTranslator]: Completed translation [2024-11-25 05:26:21,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:21 WrapperNode [2024-11-25 05:26:21,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 05:26:21,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 05:26:21,779 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 05:26:21,779 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 05:26:21,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:21" (1/1) ... [2024-11-25 05:26:21,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:21" (1/1) ... [2024-11-25 05:26:22,766 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6293 [2024-11-25 05:26:22,767 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 05:26:22,768 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 05:26:22,768 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 05:26:22,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 05:26:22,779 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:21" (1/1) ... [2024-11-25 05:26:22,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:21" (1/1) ... [2024-11-25 05:26:23,248 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:21" (1/1) ... [2024-11-25 05:26:23,249 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:21" (1/1) ... [2024-11-25 05:26:23,524 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:21" (1/1) ... [2024-11-25 05:26:23,557 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:21" (1/1) ... [2024-11-25 05:26:23,608 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:21" (1/1) ... [2024-11-25 05:26:23,682 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:21" (1/1) ... [2024-11-25 05:26:23,714 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:21" (1/1) ... [2024-11-25 05:26:24,009 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 05:26:24,012 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 05:26:24,012 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 05:26:24,012 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 05:26:24,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:21" (1/1) ... [2024-11-25 05:26:24,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:26:24,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 05:26:24,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 05:26:24,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 05:26:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 05:26:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 05:26:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 05:26:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 05:26:24,809 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 05:26:24,811 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 05:26:34,149 INFO L? ?]: Removed 3537 outVars from TransFormulas that were not future-live. [2024-11-25 05:26:34,149 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 05:26:46,093 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 05:26:46,094 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-25 05:26:46,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:26:46 BoogieIcfgContainer [2024-11-25 05:26:46,094 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 05:26:46,095 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 05:26:46,095 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 05:26:46,106 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 05:26:46,106 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:26:46" (1/1) ... [2024-11-25 05:26:46,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 05:26:46,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:26:46,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-11-25 05:26:46,168 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-11-25 05:26:46,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-25 05:26:46,170 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:26:46,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:26:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:26:52,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 05:27:02,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-25 05:27:12,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-25 05:27:16,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-25 05:27:18,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-25 05:27:24,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.73s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-25 05:27:25,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-25 05:27:35,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-25 05:27:35,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:27:35,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2024-11-25 05:27:35,825 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2024-11-25 05:27:35,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 05:27:35,825 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:27:35,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:29:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:29:29,251 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 05:31:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:31:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 05:31:47,431 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) [2024-11-25 05:31:47,444 INFO L158 Benchmark]: Toolchain (without parser) took 327065.85ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 91.1MB in the beginning and 211.7MB in the end (delta: -120.6MB). Peak memory consumption was 996.6MB. Max. memory is 16.1GB. [2024-11-25 05:31:47,447 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:31:47,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1400.72ms. Allocated memory was 117.4MB in the beginning and 125.8MB in the end (delta: 8.4MB). Free memory was 90.8MB in the beginning and 58.8MB in the end (delta: 32.1MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. [2024-11-25 05:31:47,449 INFO L158 Benchmark]: Boogie Procedure Inliner took 988.68ms. Allocated memory was 125.8MB in the beginning and 377.5MB in the end (delta: 251.7MB). Free memory was 58.8MB in the beginning and 190.3MB in the end (delta: -131.6MB). Peak memory consumption was 112.5MB. Max. memory is 16.1GB. [2024-11-25 05:31:47,449 INFO L158 Benchmark]: Boogie Preprocessor took 1241.95ms. Allocated memory is still 377.5MB. Free memory was 190.3MB in the beginning and 212.2MB in the end (delta: -21.9MB). Peak memory consumption was 129.3MB. Max. memory is 16.1GB. [2024-11-25 05:31:47,450 INFO L158 Benchmark]: RCFGBuilder took 22082.66ms. Allocated memory was 377.5MB in the beginning and 4.7GB in the end (delta: 4.3GB). Free memory was 212.2MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-11-25 05:31:47,451 INFO L158 Benchmark]: CodeCheck took 301344.46ms. Allocated memory was 4.7GB in the beginning and 1.2GB in the end (delta: -3.5GB). Free memory was 4.2GB in the beginning and 211.7MB in the end (delta: 4.0GB). Peak memory consumption was 533.1MB. Max. memory is 16.1GB. [2024-11-25 05:31:47,456 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 0.35ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1400.72ms. Allocated memory was 117.4MB in the beginning and 125.8MB in the end (delta: 8.4MB). Free memory was 90.8MB in the beginning and 58.8MB in the end (delta: 32.1MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 988.68ms. Allocated memory was 125.8MB in the beginning and 377.5MB in the end (delta: 251.7MB). Free memory was 58.8MB in the beginning and 190.3MB in the end (delta: -131.6MB). Peak memory consumption was 112.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1241.95ms. Allocated memory is still 377.5MB. Free memory was 190.3MB in the beginning and 212.2MB in the end (delta: -21.9MB). Peak memory consumption was 129.3MB. Max. memory is 16.1GB. * RCFGBuilder took 22082.66ms. Allocated memory was 377.5MB in the beginning and 4.7GB in the end (delta: 4.3GB). Free memory was 212.2MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * CodeCheck took 301344.46ms. Allocated memory was 4.7GB in the beginning and 1.2GB in the end (delta: -3.5GB). Free memory was 4.2GB in the beginning and 211.7MB in the end (delta: 4.0GB). Peak memory consumption was 533.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-25 05:31:47,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3 --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 4bfade33d4de709e97835beb78d2e683cfe9c604c744b3fd2faff7e2a5309be2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 05:31:50,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 05:31:51,033 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2024-11-25 05:31:51,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 05:31:51,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 05:31:51,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 05:31:51,066 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 05:31:51,066 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 05:31:51,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 05:31:51,067 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 05:31:51,068 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 05:31:51,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 05:31:51,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 05:31:51,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 05:31:51,069 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 05:31:51,069 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 05:31:51,070 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 05:31:51,070 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 05:31:51,070 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 05:31:51,070 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 05:31:51,070 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 05:31:51,070 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 05:31:51,070 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 05:31:51,071 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 05:31:51,071 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 05:31:51,071 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 05:31:51,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:31:51,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 05:31:51,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 05:31:51,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 05:31:51,072 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 05:31:51,072 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 05:31:51,073 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 05:31:51,073 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_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3 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 -> 4bfade33d4de709e97835beb78d2e683cfe9c604c744b3fd2faff7e2a5309be2 [2024-11-25 05:31:51,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 05:31:51,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 05:31:51,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 05:31:51,436 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 05:31:51,437 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 05:31:51,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c [2024-11-25 05:31:54,525 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/data/6d7ff3ff0/362ca43591ec4a739527eca3c4326414/FLAG3b07a4b6f [2024-11-25 05:31:55,018 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 05:31:55,021 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c [2024-11-25 05:31:55,050 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/data/6d7ff3ff0/362ca43591ec4a739527eca3c4326414/FLAG3b07a4b6f [2024-11-25 05:31:55,097 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/data/6d7ff3ff0/362ca43591ec4a739527eca3c4326414 [2024-11-25 05:31:55,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 05:31:55,101 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 05:31:55,102 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 05:31:55,102 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 05:31:55,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 05:31:55,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:31:55" (1/1) ... [2024-11-25 05:31:55,108 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@667c0ec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:55, skipping insertion in model container [2024-11-25 05:31:55,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:31:55" (1/1) ... [2024-11-25 05:31:55,176 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 05:31:55,376 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_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c[1173,1186] [2024-11-25 05:31:55,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:31:55,897 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 05:31:55,908 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_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.3.prop1-back-serstep.c[1173,1186] [2024-11-25 05:31:56,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:31:56,115 INFO L204 MainTranslator]: Completed translation [2024-11-25 05:31:56,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:56 WrapperNode [2024-11-25 05:31:56,116 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 05:31:56,118 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 05:31:56,118 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 05:31:56,118 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 05:31:56,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:56" (1/1) ... [2024-11-25 05:31:56,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:56" (1/1) ... [2024-11-25 05:31:56,298 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2181 [2024-11-25 05:31:56,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 05:31:56,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 05:31:56,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 05:31:56,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 05:31:56,308 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:56" (1/1) ... [2024-11-25 05:31:56,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:56" (1/1) ... [2024-11-25 05:31:56,333 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:56" (1/1) ... [2024-11-25 05:31:56,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:56" (1/1) ... [2024-11-25 05:31:56,407 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:56" (1/1) ... [2024-11-25 05:31:56,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:56" (1/1) ... [2024-11-25 05:31:56,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:56" (1/1) ... [2024-11-25 05:31:56,429 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:56" (1/1) ... [2024-11-25 05:31:56,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:56" (1/1) ... [2024-11-25 05:31:56,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 05:31:56,492 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 05:31:56,492 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 05:31:56,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 05:31:56,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:56" (1/1) ... [2024-11-25 05:31:56,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:31:56,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 05:31:56,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 05:31:56,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 05:31:56,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 05:31:56,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 05:31:56,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 05:31:56,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 05:31:57,099 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 05:31:57,101 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 05:32:01,212 INFO L? ?]: Removed 232 outVars from TransFormulas that were not future-live. [2024-11-25 05:32:01,212 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 05:32:01,314 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 05:32:01,315 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-25 05:32:01,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:32:01 BoogieIcfgContainer [2024-11-25 05:32:01,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 05:32:01,317 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 05:32:01,317 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 05:32:01,328 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 05:32:01,328 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:32:01" (1/1) ... [2024-11-25 05:32:01,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 05:32:01,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:32:01,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-11-25 05:32:01,402 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-11-25 05:32:01,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-25 05:32:01,405 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:32:01,407 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 05:32:01,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 05:32:01,412 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 05:32:01,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 05:32:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:32:02,386 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 05:32:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:32:02,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-25 05:32:02,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 05:32:02,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 05:32:02,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 05:32:03,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:32:03,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2024-11-25 05:32:03,403 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2024-11-25 05:32:03,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 05:32:03,403 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:32:03,404 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 05:32:03,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 05:32:03,409 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 05:32:03,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf9bd07c-94ec-4e30-88e7-ad41904c8db2/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-25 05:32:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:32:04,977 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 05:32:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:32:05,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-25 05:32:05,496 INFO L279 TraceCheckSpWp]: Computing forward predicates...