./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/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_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.7.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/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_e1f23964-51aa-48b0-a10e-96fe6d4e0392/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 ea755a9c8ca493a368f72a6768e88ed19d884301beb762d87369b8d0a5727791 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:50:52,044 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:50:52,113 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-03 01:50:52,118 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:50:52,118 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:50:52,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:50:52,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:50:52,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:50:52,144 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:50:52,145 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:50:52,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:50:52,146 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:50:52,146 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:50:52,147 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:50:52,147 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:50:52,148 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:50:52,148 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:50:52,149 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:50:52,149 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:50:52,150 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:50:52,151 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:50:52,151 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:50:52,152 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:50:52,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:50:52,153 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:50:52,154 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:50:52,154 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:50:52,154 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:50:52,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:50:52,155 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:50:52,156 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_e1f23964-51aa-48b0-a10e-96fe6d4e0392/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea755a9c8ca493a368f72a6768e88ed19d884301beb762d87369b8d0a5727791 [2023-12-03 01:50:52,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:50:52,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:50:52,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:50:52,401 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:50:52,401 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:50:52,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.7.prop1-back-serstep.c [2023-12-03 01:50:55,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:50:55,465 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:50:55,465 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.7.prop1-back-serstep.c [2023-12-03 01:50:55,488 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/data/67b184610/59a889c1fa854ebfadd58952f6e75481/FLAG9ccb93ac5 [2023-12-03 01:50:55,505 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/data/67b184610/59a889c1fa854ebfadd58952f6e75481 [2023-12-03 01:50:55,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:50:55,509 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:50:55,510 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:50:55,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:50:55,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:50:55,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:50:55" (1/1) ... [2023-12-03 01:50:55,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e58ae92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:50:55, skipping insertion in model container [2023-12-03 01:50:55,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:50:55" (1/1) ... [2023-12-03 01:50:55,605 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:50:55,798 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_e1f23964-51aa-48b0-a10e-96fe6d4e0392/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.7.prop1-back-serstep.c[1175,1188] [2023-12-03 01:50:56,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:50:56,273 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:50:56,282 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_e1f23964-51aa-48b0-a10e-96fe6d4e0392/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.7.prop1-back-serstep.c[1175,1188] [2023-12-03 01:50:56,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:50:56,499 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:50:56,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:50:56 WrapperNode [2023-12-03 01:50:56,499 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:50:56,500 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:50:56,500 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:50:56,501 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:50:56,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:50:56" (1/1) ... [2023-12-03 01:50:56,579 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:50:56" (1/1) ... [2023-12-03 01:50:57,477 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 12012 [2023-12-03 01:50:57,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:50:57,478 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:50:57,478 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:50:57,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:50:57,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:50:56" (1/1) ... [2023-12-03 01:50:57,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:50:56" (1/1) ... [2023-12-03 01:50:57,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:50:56" (1/1) ... [2023-12-03 01:50:57,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:50:56" (1/1) ... [2023-12-03 01:50:58,093 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:50:56" (1/1) ... [2023-12-03 01:50:58,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:50:56" (1/1) ... [2023-12-03 01:50:58,343 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:50:56" (1/1) ... [2023-12-03 01:50:58,379 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:50:56" (1/1) ... [2023-12-03 01:50:58,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:50:58,653 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:50:58,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:50:58,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:50:58,655 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:50:56" (1/1) ... [2023-12-03 01:50:58,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:50:58,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:50:58,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:50:58,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:50:58,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:50:58,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:50:58,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:50:58,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:50:59,373 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:50:59,374 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:51:06,601 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:51:21,605 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:51:21,606 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 01:51:21,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:51:21 BoogieIcfgContainer [2023-12-03 01:51:21,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:51:21,609 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:51:21,609 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:51:21,619 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:51:21,619 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:51:21" (1/1) ... [2023-12-03 01:51:21,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:51:21,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:51:21,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 01:51:21,685 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 01:51:21,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 01:51:21,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:51:21,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:51:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:51:29,959 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 01:51:40,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 01:51:50,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 01:51:52,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:51:56,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:51:58,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:52:03,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:52:13,396 WARN L539 Checker$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 01:52:13,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:52:13,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-03 01:52:13,451 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-03 01:52:13,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 01:52:13,452 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:52:13,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:52:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 01:52:25,425 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 01:52:25,429 INFO L158 Benchmark]: Toolchain (without parser) took 89919.60ms. Allocated memory was 151.0MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 104.4MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2023-12-03 01:52:25,429 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 151.0MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:52:25,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 989.59ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 104.0MB in the beginning and 105.3MB in the end (delta: -1.2MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. [2023-12-03 01:52:25,431 INFO L158 Benchmark]: Boogie Procedure Inliner took 977.58ms. Allocated memory was 192.9MB in the beginning and 457.2MB in the end (delta: 264.2MB). Free memory was 105.3MB in the beginning and 213.5MB in the end (delta: -108.2MB). Peak memory consumption was 166.4MB. Max. memory is 16.1GB. [2023-12-03 01:52:25,432 INFO L158 Benchmark]: Boogie Preprocessor took 1174.07ms. Allocated memory was 457.2MB in the beginning and 1.1GB in the end (delta: 687.9MB). Free memory was 213.5MB in the beginning and 866.8MB in the end (delta: -653.3MB). Peak memory consumption was 104.8MB. Max. memory is 16.1GB. [2023-12-03 01:52:25,433 INFO L158 Benchmark]: RCFGBuilder took 22954.24ms. Allocated memory was 1.1GB in the beginning and 5.6GB in the end (delta: 4.4GB). Free memory was 866.8MB in the beginning and 4.6GB in the end (delta: -3.7GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2023-12-03 01:52:25,433 INFO L158 Benchmark]: CodeCheck took 63819.06ms. Allocated memory is still 5.6GB. Free memory was 4.6GB in the beginning and 4.4GB in the end (delta: 142.6MB). Peak memory consumption was 139.4MB. Max. memory is 16.1GB. [2023-12-03 01:52:25,437 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 0.23ms. Allocated memory is still 151.0MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 989.59ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 104.0MB in the beginning and 105.3MB in the end (delta: -1.2MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 977.58ms. Allocated memory was 192.9MB in the beginning and 457.2MB in the end (delta: 264.2MB). Free memory was 105.3MB in the beginning and 213.5MB in the end (delta: -108.2MB). Peak memory consumption was 166.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1174.07ms. Allocated memory was 457.2MB in the beginning and 1.1GB in the end (delta: 687.9MB). Free memory was 213.5MB in the beginning and 866.8MB in the end (delta: -653.3MB). Peak memory consumption was 104.8MB. Max. memory is 16.1GB. * RCFGBuilder took 22954.24ms. Allocated memory was 1.1GB in the beginning and 5.6GB in the end (delta: 4.4GB). Free memory was 866.8MB in the beginning and 4.6GB in the end (delta: -3.7GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * CodeCheck took 63819.06ms. Allocated memory is still 5.6GB. Free memory was 4.6GB in the beginning and 4.4GB in the end (delta: 142.6MB). Peak memory consumption was 139.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 01:52:25,651 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-03 01:52:25,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/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_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.7.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/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_e1f23964-51aa-48b0-a10e-96fe6d4e0392/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 ea755a9c8ca493a368f72a6768e88ed19d884301beb762d87369b8d0a5727791 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:52:27,633 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:52:27,706 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-03 01:52:27,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:52:27,739 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:52:27,740 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:52:27,741 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:52:27,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:52:27,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:52:27,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:52:27,743 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:52:27,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:52:27,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:52:27,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:52:27,745 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 01:52:27,746 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 01:52:27,746 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 01:52:27,747 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:52:27,748 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:52:27,748 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:52:27,749 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:52:27,752 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:52:27,752 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:52:27,753 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 01:52:27,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:52:27,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:52:27,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:52:27,754 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:52:27,755 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:52:27,755 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 01:52:27,755 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:52:27,756 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:52:27,756 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 01:52:27,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 01:52:27,757 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_e1f23964-51aa-48b0-a10e-96fe6d4e0392/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea755a9c8ca493a368f72a6768e88ed19d884301beb762d87369b8d0a5727791 [2023-12-03 01:52:28,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:52:28,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:52:28,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:52:28,104 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:52:28,104 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:52:28,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.7.prop1-back-serstep.c [2023-12-03 01:52:30,907 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:52:31,249 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:52:31,249 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.7.prop1-back-serstep.c [2023-12-03 01:52:31,266 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/data/3ebbf5ea6/8bf1af166c614355b657982c86bc24ac/FLAG4c408caa6 [2023-12-03 01:52:31,278 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/data/3ebbf5ea6/8bf1af166c614355b657982c86bc24ac [2023-12-03 01:52:31,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:52:31,282 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:52:31,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:52:31,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:52:31,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:52:31,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:52:31" (1/1) ... [2023-12-03 01:52:31,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc7db86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:52:31, skipping insertion in model container [2023-12-03 01:52:31,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:52:31" (1/1) ... [2023-12-03 01:52:31,347 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:52:31,528 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_e1f23964-51aa-48b0-a10e-96fe6d4e0392/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.7.prop1-back-serstep.c[1175,1188] [2023-12-03 01:52:31,845 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:52:31,854 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:52:31,862 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_e1f23964-51aa-48b0-a10e-96fe6d4e0392/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.7.prop1-back-serstep.c[1175,1188] [2023-12-03 01:52:32,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:52:32,069 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:52:32,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:52:32 WrapperNode [2023-12-03 01:52:32,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:52:32,070 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:52:32,070 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:52:32,071 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:52:32,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:52:32" (1/1) ... [2023-12-03 01:52:32,132 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:52:32" (1/1) ... [2023-12-03 01:52:32,257 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3287 [2023-12-03 01:52:32,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:52:32,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:52:32,259 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:52:32,259 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:52:32,266 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:52:32" (1/1) ... [2023-12-03 01:52:32,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:52:32" (1/1) ... [2023-12-03 01:52:32,289 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:52:32" (1/1) ... [2023-12-03 01:52:32,289 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:52:32" (1/1) ... [2023-12-03 01:52:32,342 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:52:32" (1/1) ... [2023-12-03 01:52:32,382 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:52:32" (1/1) ... [2023-12-03 01:52:32,402 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:52:32" (1/1) ... [2023-12-03 01:52:32,413 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:52:32" (1/1) ... [2023-12-03 01:52:32,428 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:52:32,429 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:52:32,429 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:52:32,429 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:52:32,430 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:52:32" (1/1) ... [2023-12-03 01:52:32,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:52:32,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:52:32,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:52:32,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:52:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:52:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 01:52:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:52:32,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:52:32,995 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:52:32,996 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:52:38,647 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:52:38,845 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:52:38,846 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 01:52:38,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:52:38 BoogieIcfgContainer [2023-12-03 01:52:38,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:52:38,848 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:52:38,849 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:52:38,858 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:52:38,858 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:52:38" (1/1) ... [2023-12-03 01:52:38,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:52:38,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:52:38,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 01:52:38,918 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 01:52:38,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 01:52:38,920 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:52:38,920 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:52:38,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:52:38,936 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:52:38,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 01:52:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:52:39,907 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:52:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:52:40,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 01:52:40,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:52:40,318 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 01:52:40,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 01:52:41,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:52:42,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:52:42,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-03 01:52:42,087 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-03 01:52:42,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 01:52:42,088 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:52:42,088 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:52:42,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:52:42,089 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:52:42,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 01:52:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:52:44,050 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:52:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:52:44,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 2805 conjuncts, 176 conjunts are in the unsatisfiable core [2023-12-03 01:52:44,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:53:11,011 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 01:53:11,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 01:53:13,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:53:16,038 WARN L539 Checker$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 01:53:23,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 01:53:24,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:53:24,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-03 01:53:24,512 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-03 01:53:24,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 01:53:24,513 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:53:24,513 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:53:24,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:53:24,514 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:53:24,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1f23964-51aa-48b0-a10e-96fe6d4e0392/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 01:53:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:27,869 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:53:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:30,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 5252 conjuncts, 1050 conjunts are in the unsatisfiable core [2023-12-03 01:53:30,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:14,046 WARN L293 SmtUtils]: Spent 10.09s on a formula simplification. DAG size of input: 32906 DAG size of output: 64609 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)