./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 035b296d4851d82a537785857bda045a7408444f7500636342613b5ba9d39337 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:14:09,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:14:09,662 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-02 22:14:09,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 22:14:09,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 22:14:09,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:14:09,694 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 22:14:09,695 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 22:14:09,695 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:14:09,696 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:14:09,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:14:09,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:14:09,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:14:09,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:14:09,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:14:09,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:14:09,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:14:09,700 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:14:09,700 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:14:09,701 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:14:09,701 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:14:09,703 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:14:09,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:14:09,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:14:09,704 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:14:09,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:14:09,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 22:14:09,705 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 22:14:09,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 22:14:09,706 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 22:14:09,706 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 035b296d4851d82a537785857bda045a7408444f7500636342613b5ba9d39337 [2023-12-02 22:14:09,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:14:09,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:14:09,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:14:09,940 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:14:09,941 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:14:09,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-back-serstep.c [2023-12-02 22:14:12,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:14:13,137 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:14:13,137 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-back-serstep.c [2023-12-02 22:14:13,162 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/data/54d6b24e5/4222bb932ace4535a4b7faa607c7e0c4/FLAG639a62e13 [2023-12-02 22:14:13,178 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/data/54d6b24e5/4222bb932ace4535a4b7faa607c7e0c4 [2023-12-02 22:14:13,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:14:13,182 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:14:13,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:14:13,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:14:13,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:14:13,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:14:13" (1/1) ... [2023-12-02 22:14:13,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb0470f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:13, skipping insertion in model container [2023-12-02 22:14:13,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:14:13" (1/1) ... [2023-12-02 22:14:13,323 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:14:13,559 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-back-serstep.c[1177,1190] [2023-12-02 22:14:14,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:14:14,172 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:14:14,183 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-back-serstep.c[1177,1190] [2023-12-02 22:14:14,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:14:14,672 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:14:14,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:14 WrapperNode [2023-12-02 22:14:14,672 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:14:14,674 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:14:14,674 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:14:14,674 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:14:14,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:14" (1/1) ... [2023-12-02 22:14:14,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:14" (1/1) ... [2023-12-02 22:14:16,207 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20422 [2023-12-02 22:14:16,208 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:14:16,209 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:14:16,209 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:14:16,209 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:14:16,216 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:14" (1/1) ... [2023-12-02 22:14:16,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:14" (1/1) ... [2023-12-02 22:14:16,577 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:14" (1/1) ... [2023-12-02 22:14:16,577 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:14" (1/1) ... [2023-12-02 22:14:17,101 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:14" (1/1) ... [2023-12-02 22:14:17,207 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:14" (1/1) ... [2023-12-02 22:14:17,514 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:14" (1/1) ... [2023-12-02 22:14:17,584 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:14" (1/1) ... [2023-12-02 22:14:17,875 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:14:17,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:14:17,876 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:14:17,876 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:14:17,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:14" (1/1) ... [2023-12-02 22:14:17,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:14:17,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:14:17,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:14:17,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:14:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:14:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 22:14:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:14:17,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:14:19,019 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:14:19,020 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:14:30,755 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:15:04,056 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:15:04,056 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 22:15:04,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:15:04 BoogieIcfgContainer [2023-12-02 22:15:04,058 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:15:04,058 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:15:04,058 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:15:04,065 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:15:04,065 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:15:04" (1/1) ... [2023-12-02 22:15:04,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:15:04,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:15:04,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 22:15:04,107 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 22:15:04,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 22:15:04,109 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:15:04,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:15:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:15:11,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:15:22,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 22:15:33,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 22:15:43,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:15:48,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:15:53,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:15:54,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:15:56,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:16:06,098 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 [] [2023-12-02 22:16:06,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:16:06,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-02 22:16:06,163 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-02 22:16:06,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:16:06,163 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:16:06,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:16:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 22:16:19,728 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 22:16:19,731 INFO L158 Benchmark]: Toolchain (without parser) took 126548.81ms. Allocated memory was 161.5MB in the beginning and 7.6GB in the end (delta: 7.5GB). Free memory was 119.2MB in the beginning and 6.0GB in the end (delta: -5.9GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2023-12-02 22:16:19,732 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:16:19,733 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1489.37ms. Allocated memory was 161.5MB in the beginning and 228.6MB in the end (delta: 67.1MB). Free memory was 118.8MB in the beginning and 93.6MB in the end (delta: 25.1MB). Peak memory consumption was 105.2MB. Max. memory is 16.1GB. [2023-12-02 22:16:19,734 INFO L158 Benchmark]: Boogie Procedure Inliner took 1534.44ms. Allocated memory was 228.6MB in the beginning and 736.1MB in the end (delta: 507.5MB). Free memory was 93.6MB in the beginning and 401.9MB in the end (delta: -308.3MB). Peak memory consumption was 197.1MB. Max. memory is 16.1GB. [2023-12-02 22:16:19,734 INFO L158 Benchmark]: Boogie Preprocessor took 1666.71ms. Allocated memory is still 736.1MB. Free memory was 401.9MB in the beginning and 327.5MB in the end (delta: 74.5MB). Peak memory consumption was 146.8MB. Max. memory is 16.1GB. [2023-12-02 22:16:19,735 INFO L158 Benchmark]: RCFGBuilder took 46181.82ms. Allocated memory was 736.1MB in the beginning and 6.4GB in the end (delta: 5.7GB). Free memory was 327.5MB in the beginning and 5.1GB in the end (delta: -4.7GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2023-12-02 22:16:19,736 INFO L158 Benchmark]: CodeCheck took 75671.77ms. Allocated memory was 6.4GB in the beginning and 7.6GB in the end (delta: 1.2GB). Free memory was 5.1GB in the beginning and 6.0GB in the end (delta: -939.5MB). Peak memory consumption was 282.1MB. Max. memory is 16.1GB. [2023-12-02 22:16:19,740 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1489.37ms. Allocated memory was 161.5MB in the beginning and 228.6MB in the end (delta: 67.1MB). Free memory was 118.8MB in the beginning and 93.6MB in the end (delta: 25.1MB). Peak memory consumption was 105.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1534.44ms. Allocated memory was 228.6MB in the beginning and 736.1MB in the end (delta: 507.5MB). Free memory was 93.6MB in the beginning and 401.9MB in the end (delta: -308.3MB). Peak memory consumption was 197.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1666.71ms. Allocated memory is still 736.1MB. Free memory was 401.9MB in the beginning and 327.5MB in the end (delta: 74.5MB). Peak memory consumption was 146.8MB. Max. memory is 16.1GB. * RCFGBuilder took 46181.82ms. Allocated memory was 736.1MB in the beginning and 6.4GB in the end (delta: 5.7GB). Free memory was 327.5MB in the beginning and 5.1GB in the end (delta: -4.7GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. * CodeCheck took 75671.77ms. Allocated memory was 6.4GB in the beginning and 7.6GB in the end (delta: 1.2GB). Free memory was 5.1GB in the beginning and 6.0GB in the end (delta: -939.5MB). Peak memory consumption was 282.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 22:16:19,952 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-02 22:16:19,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 035b296d4851d82a537785857bda045a7408444f7500636342613b5ba9d39337 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:16:22,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:16:22,104 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-02 22:16:22,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:16:22,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 22:16:22,138 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 22:16:22,139 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:16:22,140 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:16:22,140 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:16:22,141 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:16:22,142 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:16:22,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:16:22,143 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:16:22,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:16:22,144 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 22:16:22,145 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 22:16:22,145 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 22:16:22,146 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:16:22,146 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:16:22,147 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:16:22,147 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:16:22,148 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:16:22,149 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:16:22,149 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 22:16:22,150 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:16:22,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:16:22,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:16:22,151 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:16:22,151 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 22:16:22,152 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 22:16:22,152 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:16:22,152 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 22:16:22,153 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 22:16:22,153 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 22:16:22,153 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 035b296d4851d82a537785857bda045a7408444f7500636342613b5ba9d39337 [2023-12-02 22:16:22,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:16:22,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:16:22,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:16:22,465 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:16:22,465 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:16:22,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-back-serstep.c [2023-12-02 22:16:25,264 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:16:25,667 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:16:25,668 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-back-serstep.c [2023-12-02 22:16:25,694 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/data/1a7295f45/7953434fe2af4911a91cde8c96e6d607/FLAGdee965842 [2023-12-02 22:16:25,708 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/data/1a7295f45/7953434fe2af4911a91cde8c96e6d607 [2023-12-02 22:16:25,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:16:25,712 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:16:25,713 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:16:25,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:16:25,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:16:25,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:16:25" (1/1) ... [2023-12-02 22:16:25,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7edb0359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:16:25, skipping insertion in model container [2023-12-02 22:16:25,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:16:25" (1/1) ... [2023-12-02 22:16:25,871 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:16:26,093 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-back-serstep.c[1177,1190] [2023-12-02 22:16:26,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:16:26,617 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:16:26,629 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-back-serstep.c[1177,1190] [2023-12-02 22:16:26,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:16:27,000 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:16:27,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:16:27 WrapperNode [2023-12-02 22:16:27,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:16:27,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:16:27,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:16:27,002 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:16:27,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:16:27" (1/1) ... [2023-12-02 22:16:27,078 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:16:27" (1/1) ... [2023-12-02 22:16:27,262 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5610 [2023-12-02 22:16:27,262 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:16:27,263 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:16:27,263 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:16:27,263 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:16:27,272 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:16:27" (1/1) ... [2023-12-02 22:16:27,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:16:27" (1/1) ... [2023-12-02 22:16:27,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:16:27" (1/1) ... [2023-12-02 22:16:27,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:16:27" (1/1) ... [2023-12-02 22:16:27,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:16:27" (1/1) ... [2023-12-02 22:16:27,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:16:27" (1/1) ... [2023-12-02 22:16:27,549 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:16:27" (1/1) ... [2023-12-02 22:16:27,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:16:27" (1/1) ... [2023-12-02 22:16:27,627 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:16:27,628 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:16:27,628 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:16:27,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:16:27,629 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:16:27" (1/1) ... [2023-12-02 22:16:27,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:16:27,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:16:27,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:16:27,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:16:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:16:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 22:16:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:16:27,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:16:28,478 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:16:28,481 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:16:48,979 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:16:49,199 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:16:49,200 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 22:16:49,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:16:49 BoogieIcfgContainer [2023-12-02 22:16:49,201 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:16:49,202 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:16:49,202 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:16:49,209 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:16:49,210 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:16:49" (1/1) ... [2023-12-02 22:16:49,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:16:49,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:16:49,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 22:16:49,263 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 22:16:49,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 22:16:49,265 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:16:49,265 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:16:49,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:16:49,288 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:16:49,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 22:16:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:16:50,690 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:16:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:16:51,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 22:16:51,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:16:51,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:16:51,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 22:17:02,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:17:12,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:17:12,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:17:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-02 22:17:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-02 22:17:12,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:17:12,900 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:17:12,901 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:17:12,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:17:12,902 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:17:12,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 22:17:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:17:19,282 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:17:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:17:21,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 4873 conjuncts, 61 conjunts are in the unsatisfiable core [2023-12-02 22:17:21,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:17:22,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:17:22,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 22:17:33,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:17:44,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:17:56,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:18:06,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:18:16,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:18:26,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:18:36,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:18:46,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:18:58,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:19:10,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:19:20,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:19:20,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:19:20,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-02 22:19:20,355 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-02 22:19:20,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:19:20,356 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:19:20,357 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:19:20,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:19:20,358 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:19:20,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 22:19:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:19:32,316 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:19:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:19:36,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 9354 conjuncts, 314 conjunts are in the unsatisfiable core [2023-12-02 22:19:36,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:19:58,442 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:19:58,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 22:20:12,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:20:22,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:20:42,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:20:46,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.69s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:21:01,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:21:13,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:21:23,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:21:33,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.35s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:21:50,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:22:00,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:22:10,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:22:20,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:22:30,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:22:38,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.38s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:23:21,520 WARN L293 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 573 DAG size of output: 569 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 22:23:51,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:24:23,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:24:33,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:24:44,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:24:47,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:24:47,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 19 states and 43 transitions. [2023-12-02 22:24:47,713 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 43 transitions. [2023-12-02 22:24:47,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:24:47,714 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:24:47,714 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:24:47,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:24:47,715 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:24:47,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 22:25:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:00,575 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:25:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:04,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 9354 conjuncts, 314 conjunts are in the unsatisfiable core [2023-12-02 22:25:04,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:08,916 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:25:09,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 22:25:27,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:25:37,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:25:47,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:25:57,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:26:06,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.77s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 22:26:08,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:08,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 20 states and 45 transitions. [2023-12-02 22:26:08,101 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 45 transitions. [2023-12-02 22:26:08,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:26:08,102 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:08,102 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:26:08,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:26:08,103 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:26:08,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 22:26:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:20,742 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:26:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:24,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 9354 conjuncts, 314 conjunts are in the unsatisfiable core [2023-12-02 22:26:24,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:28,829 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:26:28,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 22:26:29,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:29,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 20 states and 45 transitions. [2023-12-02 22:26:29,251 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 45 transitions. [2023-12-02 22:26:29,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:26:29,252 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:29,252 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:26:29,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:26:29,253 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:26:29,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 22:26:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:42,001 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:26:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:46,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 9354 conjuncts, 314 conjunts are in the unsatisfiable core [2023-12-02 22:26:46,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:50,311 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:26:50,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-02 22:26:50,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:50,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 20 states and 45 transitions. [2023-12-02 22:26:50,736 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 45 transitions. [2023-12-02 22:26:50,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:26:50,737 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:50,737 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:26:50,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:26:50,738 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:26:50,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 22:27:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:03,759 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:27:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:07,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 9354 conjuncts, 314 conjunts are in the unsatisfiable core [2023-12-02 22:27:07,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:27:12,255 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:27:12,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 22:27:12,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:12,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 20 states and 45 transitions. [2023-12-02 22:27:12,720 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 45 transitions. [2023-12-02 22:27:12,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:27:12,720 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:12,720 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:27:12,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:27:12,721 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:27:12,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 22:27:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:25,966 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:27:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:30,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 9354 conjuncts, 314 conjunts are in the unsatisfiable core [2023-12-02 22:27:30,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:27:34,491 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:27:34,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-12-02 22:27:34,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:34,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 20 states and 45 transitions. [2023-12-02 22:27:34,916 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 45 transitions. [2023-12-02 22:27:34,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:27:34,916 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:34,916 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:27:34,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:27:34,917 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:27:34,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10bbef2-5f8f-419f-8268-6c33e7827127/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 22:27:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:47,883 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported