./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/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_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/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_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/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 ec9cd31edb7a378899faf68c0fb229a7e28128257eb8c70cd74f7243f49696d3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:30:07,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:30:07,860 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-03 01:30:07,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:30:07,865 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:30:07,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:30:07,890 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:30:07,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:30:07,892 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:30:07,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:30:07,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:30:07,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:30:07,894 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:30:07,895 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:30:07,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:30:07,896 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:30:07,897 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:30:07,897 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:30:07,898 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:30:07,898 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:30:07,899 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:30:07,900 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:30:07,900 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:30:07,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:30:07,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:30:07,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:30:07,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:30:07,903 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:30:07,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:30:07,904 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:30:07,905 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_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec9cd31edb7a378899faf68c0fb229a7e28128257eb8c70cd74f7243f49696d3 [2023-12-03 01:30:08,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:30:08,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:30:08,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:30:08,156 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:30:08,157 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:30:08,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-back-serstep.c [2023-12-03 01:30:11,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:30:11,357 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:30:11,358 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-back-serstep.c [2023-12-03 01:30:11,379 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/data/8103940af/1ef5409494cf418bb522acb042963674/FLAG04eefd6f3 [2023-12-03 01:30:11,395 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/data/8103940af/1ef5409494cf418bb522acb042963674 [2023-12-03 01:30:11,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:30:11,399 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:30:11,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:30:11,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:30:11,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:30:11,406 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:30:11" (1/1) ... [2023-12-03 01:30:11,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de98204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:30:11, skipping insertion in model container [2023-12-03 01:30:11,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:30:11" (1/1) ... [2023-12-03 01:30:11,501 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:30:11,689 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_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-back-serstep.c[1176,1189] [2023-12-03 01:30:12,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:30:12,220 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:30:12,231 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_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-back-serstep.c[1176,1189] [2023-12-03 01:30:12,522 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:30:12,537 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:30:12,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:30:12 WrapperNode [2023-12-03 01:30:12,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:30:12,539 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:30:12,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:30:12,540 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:30:12,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:30:12" (1/1) ... [2023-12-03 01:30:12,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:30:12" (1/1) ... [2023-12-03 01:30:13,823 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 13830 [2023-12-03 01:30:13,824 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:30:13,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:30:13,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:30:13,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:30:13,833 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:30:12" (1/1) ... [2023-12-03 01:30:13,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:30:12" (1/1) ... [2023-12-03 01:30:14,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:30:12" (1/1) ... [2023-12-03 01:30:14,044 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:30:12" (1/1) ... [2023-12-03 01:30:14,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:30:12" (1/1) ... [2023-12-03 01:30:14,513 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:30:12" (1/1) ... [2023-12-03 01:30:14,622 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:30:12" (1/1) ... [2023-12-03 01:30:14,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:30:12" (1/1) ... [2023-12-03 01:30:14,938 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:30:14,939 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:30:14,939 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:30:14,940 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:30:14,940 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:30:12" (1/1) ... [2023-12-03 01:30:14,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:30:14,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:30:14,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:30:14,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:30:15,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:30:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:30:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:30:15,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:30:15,831 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:30:15,833 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:30:24,235 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:30:43,809 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:30:43,809 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 01:30:43,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:30:43 BoogieIcfgContainer [2023-12-03 01:30:43,811 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:30:43,812 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:30:43,812 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:30:43,819 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:30:43,819 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:30:43" (1/1) ... [2023-12-03 01:30:43,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:30:43,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:30:43,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 01:30:43,868 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 01:30:43,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 01:30:43,869 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:30:43,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:30:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:31:04,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:31:14,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 01:31:24,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 01:31:27,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:31:28,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:31:32,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:31:42,557 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 [] [2023-12-03 01:31:42,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:31:42,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-03 01:31:42,619 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-03 01:31:42,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 01:31:42,619 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:31:42,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:31:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 01:31:54,824 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-03 01:31:54,828 INFO L158 Benchmark]: Toolchain (without parser) took 103428.70ms. Allocated memory was 167.8MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 124.7MB in the beginning and 4.6GB in the end (delta: -4.5GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2023-12-03 01:31:54,829 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:31:54,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1138.19ms. Allocated memory is still 167.8MB. Free memory was 124.7MB in the beginning and 85.4MB in the end (delta: 39.3MB). Peak memory consumption was 103.4MB. Max. memory is 16.1GB. [2023-12-03 01:31:54,831 INFO L158 Benchmark]: Boogie Procedure Inliner took 1284.60ms. Allocated memory was 167.8MB in the beginning and 400.6MB in the end (delta: 232.8MB). Free memory was 85.4MB in the beginning and 158.6MB in the end (delta: -73.2MB). Peak memory consumption was 202.5MB. Max. memory is 16.1GB. [2023-12-03 01:31:54,832 INFO L158 Benchmark]: Boogie Preprocessor took 1113.60ms. Allocated memory was 400.6MB in the beginning and 834.7MB in the end (delta: 434.1MB). Free memory was 158.6MB in the beginning and 526.5MB in the end (delta: -367.9MB). Peak memory consumption was 94.5MB. Max. memory is 16.1GB. [2023-12-03 01:31:54,833 INFO L158 Benchmark]: RCFGBuilder took 28871.51ms. Allocated memory was 834.7MB in the beginning and 4.8GB in the end (delta: 4.0GB). Free memory was 526.5MB in the beginning and 4.0GB in the end (delta: -3.5GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2023-12-03 01:31:54,833 INFO L158 Benchmark]: CodeCheck took 71015.34ms. Allocated memory was 4.8GB in the beginning and 6.2GB in the end (delta: 1.4GB). Free memory was 4.0GB in the beginning and 4.6GB in the end (delta: -605.1MB). Peak memory consumption was 776.9MB. Max. memory is 16.1GB. [2023-12-03 01:31:54,838 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 130.0MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1138.19ms. Allocated memory is still 167.8MB. Free memory was 124.7MB in the beginning and 85.4MB in the end (delta: 39.3MB). Peak memory consumption was 103.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1284.60ms. Allocated memory was 167.8MB in the beginning and 400.6MB in the end (delta: 232.8MB). Free memory was 85.4MB in the beginning and 158.6MB in the end (delta: -73.2MB). Peak memory consumption was 202.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1113.60ms. Allocated memory was 400.6MB in the beginning and 834.7MB in the end (delta: 434.1MB). Free memory was 158.6MB in the beginning and 526.5MB in the end (delta: -367.9MB). Peak memory consumption was 94.5MB. Max. memory is 16.1GB. * RCFGBuilder took 28871.51ms. Allocated memory was 834.7MB in the beginning and 4.8GB in the end (delta: 4.0GB). Free memory was 526.5MB in the beginning and 4.0GB in the end (delta: -3.5GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. * CodeCheck took 71015.34ms. Allocated memory was 4.8GB in the beginning and 6.2GB in the end (delta: 1.4GB). Free memory was 4.0GB in the beginning and 4.6GB in the end (delta: -605.1MB). Peak memory consumption was 776.9MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 01:31:55,051 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-03 01:31:55,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/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_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/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_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/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_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/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 ec9cd31edb7a378899faf68c0fb229a7e28128257eb8c70cd74f7243f49696d3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:31:57,016 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:31:57,098 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-03 01:31:57,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:31:57,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:31:57,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:31:57,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:31:57,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:31:57,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:31:57,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:31:57,133 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:31:57,133 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:31:57,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:31:57,135 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:31:57,135 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 01:31:57,136 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 01:31:57,136 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 01:31:57,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:31:57,137 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:31:57,138 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:31:57,138 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:31:57,139 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:31:57,140 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:31:57,140 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 01:31:57,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:31:57,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:31:57,142 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:31:57,142 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:31:57,142 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:31:57,143 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 01:31:57,143 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:31:57,143 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:31:57,144 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 01:31:57,144 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 01:31:57,144 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_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec9cd31edb7a378899faf68c0fb229a7e28128257eb8c70cd74f7243f49696d3 [2023-12-03 01:31:57,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:31:57,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:31:57,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:31:57,443 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:31:57,444 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:31:57,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-back-serstep.c [2023-12-03 01:32:00,267 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:32:00,626 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:32:00,627 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-back-serstep.c [2023-12-03 01:32:00,644 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/data/147021cf8/494967b5ad564462936e93207fc30475/FLAGf30da6392 [2023-12-03 01:32:00,657 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/data/147021cf8/494967b5ad564462936e93207fc30475 [2023-12-03 01:32:00,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:32:00,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:32:00,662 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:32:00,662 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:32:00,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:32:00,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:32:00" (1/1) ... [2023-12-03 01:32:00,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56daacc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:32:00, skipping insertion in model container [2023-12-03 01:32:00,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:32:00" (1/1) ... [2023-12-03 01:32:00,763 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:32:00,958 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_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-back-serstep.c[1176,1189] [2023-12-03 01:32:01,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:32:01,370 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:32:01,384 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_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-back-serstep.c[1176,1189] [2023-12-03 01:32:01,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:32:01,589 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:32:01,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:32:01 WrapperNode [2023-12-03 01:32:01,590 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:32:01,590 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:32:01,591 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:32:01,591 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:32:01,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:32:01" (1/1) ... [2023-12-03 01:32:01,688 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:32:01" (1/1) ... [2023-12-03 01:32:01,836 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3891 [2023-12-03 01:32:01,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:32:01,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:32:01,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:32:01,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:32:01,849 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:32:01" (1/1) ... [2023-12-03 01:32:01,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:32:01" (1/1) ... [2023-12-03 01:32:01,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:32:01" (1/1) ... [2023-12-03 01:32:01,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:32:01" (1/1) ... [2023-12-03 01:32:01,986 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:32:01" (1/1) ... [2023-12-03 01:32:01,996 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:32:01" (1/1) ... [2023-12-03 01:32:02,012 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:32:01" (1/1) ... [2023-12-03 01:32:02,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:32:01" (1/1) ... [2023-12-03 01:32:02,059 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:32:02,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:32:02,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:32:02,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:32:02,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:32:01" (1/1) ... [2023-12-03 01:32:02,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:32:02,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:32:02,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:32:02,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:32:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:32:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 01:32:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:32:02,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:32:02,695 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:32:02,698 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:32:09,123 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:32:09,349 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:32:09,349 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 01:32:09,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:32:09 BoogieIcfgContainer [2023-12-03 01:32:09,350 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:32:09,351 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:32:09,351 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:32:09,358 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:32:09,358 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:32:09" (1/1) ... [2023-12-03 01:32:09,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:32:09,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:32:09,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 01:32:09,410 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 01:32:09,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 01:32:09,411 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:32:09,412 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:32:09,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:32:09,414 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:32:09,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 01:32:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:32:10,609 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:32:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:32:10,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 01:32:10,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:32:11,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:32:11,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 01:32:21,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:32:31,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:32:31,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:32:31,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-03 01:32:31,880 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-03 01:32:31,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 01:32:31,880 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:32:31,881 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:32:31,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:32:31,882 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:32:31,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 01:32:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:32:36,241 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:32:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:32:37,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 3364 conjuncts, 158 conjunts are in the unsatisfiable core [2023-12-03 01:32:37,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:32:53,394 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:32:53,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 01:33:04,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:33:14,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:33:27,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.49s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 01:33:28,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 01:33:29,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 01:33:31,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 01:33:46,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 01:33:58,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 01:34:02,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.74s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 01:34:02,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:34:02,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-03 01:34:02,442 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-03 01:34:02,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 01:34:02,444 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:34:02,444 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:34:02,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:34:02,446 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:34:02,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0d7e99-707c-4d1f-8e2b-e89a0d1f7bb5/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process