./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.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_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/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_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/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_4a4e6680-25cb-443f-b11d-60d79a97dc30/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 5c2c95c1cb01dd02dfadd0b631eee75cdb4fc1304493d91cf916e5cb361c9d74 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:51:28,288 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:51:28,353 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-03 03:51:28,357 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:51:28,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:51:28,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:51:28,380 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:51:28,381 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:51:28,382 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:51:28,382 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:51:28,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:51:28,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:51:28,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:51:28,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:51:28,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:51:28,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:51:28,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:51:28,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:51:28,387 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:51:28,387 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:51:28,388 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:51:28,389 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:51:28,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:51:28,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:51:28,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:51:28,391 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:51:28,391 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:51:28,391 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:51:28,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:51:28,392 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:51:28,393 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_4a4e6680-25cb-443f-b11d-60d79a97dc30/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c2c95c1cb01dd02dfadd0b631eee75cdb4fc1304493d91cf916e5cb361c9d74 [2023-12-03 03:51:28,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:51:28,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:51:28,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:51:28,631 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:51:28,631 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:51:28,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-back-serstep.c [2023-12-03 03:51:31,353 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:51:31,691 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:51:31,692 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-back-serstep.c [2023-12-03 03:51:31,720 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/data/80226e2c2/9661185d8535470c8374769d015a6d75/FLAGb0b3ca106 [2023-12-03 03:51:31,735 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/data/80226e2c2/9661185d8535470c8374769d015a6d75 [2023-12-03 03:51:31,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:51:31,739 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:51:31,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:51:31,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:51:31,745 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:51:31,746 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:51:31" (1/1) ... [2023-12-03 03:51:31,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e989db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:51:31, skipping insertion in model container [2023-12-03 03:51:31,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:51:31" (1/1) ... [2023-12-03 03:51:31,844 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:51:32,057 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_4a4e6680-25cb-443f-b11d-60d79a97dc30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-back-serstep.c[1177,1190] [2023-12-03 03:51:32,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:51:32,597 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:51:32,609 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_4a4e6680-25cb-443f-b11d-60d79a97dc30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-back-serstep.c[1177,1190] [2023-12-03 03:51:32,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:51:32,915 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:51:32,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:51:32 WrapperNode [2023-12-03 03:51:32,915 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:51:32,916 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:51:32,916 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:51:32,916 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:51:32,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:51:32" (1/1) ... [2023-12-03 03:51:33,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:51:32" (1/1) ... [2023-12-03 03:51:34,162 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 15204 [2023-12-03 03:51:34,163 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:51:34,163 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:51:34,163 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:51:34,163 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:51:34,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:51:32" (1/1) ... [2023-12-03 03:51:34,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:51:32" (1/1) ... [2023-12-03 03:51:34,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:51:32" (1/1) ... [2023-12-03 03:51:34,552 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:51:32" (1/1) ... [2023-12-03 03:51:34,922 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:51:32" (1/1) ... [2023-12-03 03:51:35,018 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:51:32" (1/1) ... [2023-12-03 03:51:35,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:51:32" (1/1) ... [2023-12-03 03:51:35,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:51:32" (1/1) ... [2023-12-03 03:51:35,521 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:51:35,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:51:35,522 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:51:35,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:51:35,523 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:51:32" (1/1) ... [2023-12-03 03:51:35,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:51:35,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:51:35,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:51:35,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:51:35,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:51:35,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:51:35,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:51:35,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:51:36,270 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:51:36,272 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:51:44,460 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:52:04,869 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:52:04,870 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 03:52:04,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:52:04 BoogieIcfgContainer [2023-12-03 03:52:04,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:52:04,873 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:52:04,873 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:52:04,880 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:52:04,881 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:52:04" (1/1) ... [2023-12-03 03:52:04,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:52:04,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:52:04,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 03:52:04,930 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 03:52:04,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 03:52:04,932 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:52:04,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:52:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:52:16,394 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 03:52:27,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 03:52:37,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 03:52:47,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:52:57,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:52:59,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:53:09,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:53:19,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:53:19,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:53:19,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-03 03:53:19,457 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-03 03:53:19,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 03:53:19,458 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:53:19,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:53:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 03:53:31,798 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 03:53:31,802 INFO L158 Benchmark]: Toolchain (without parser) took 120062.65ms. Allocated memory was 161.5MB in the beginning and 6.6GB in the end (delta: 6.4GB). Free memory was 112.7MB in the beginning and 5.1GB in the end (delta: -5.0GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2023-12-03 03:53:31,802 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 111.1MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:53:31,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1174.96ms. Allocated memory is still 161.5MB. Free memory was 112.2MB in the beginning and 73.8MB in the end (delta: 38.4MB). Peak memory consumption was 111.2MB. Max. memory is 16.1GB. [2023-12-03 03:53:31,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 1246.95ms. Allocated memory was 161.5MB in the beginning and 404.8MB in the end (delta: 243.3MB). Free memory was 73.8MB in the beginning and 135.2MB in the end (delta: -61.4MB). Peak memory consumption was 199.7MB. Max. memory is 16.1GB. [2023-12-03 03:53:31,805 INFO L158 Benchmark]: Boogie Preprocessor took 1358.38ms. Allocated memory was 404.8MB in the beginning and 809.5MB in the end (delta: 404.8MB). Free memory was 135.2MB in the beginning and 471.4MB in the end (delta: -336.3MB). Peak memory consumption was 109.4MB. Max. memory is 16.1GB. [2023-12-03 03:53:31,806 INFO L158 Benchmark]: RCFGBuilder took 29349.23ms. Allocated memory was 809.5MB in the beginning and 6.6GB in the end (delta: 5.8GB). Free memory was 471.4MB in the beginning and 5.7GB in the end (delta: -5.2GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2023-12-03 03:53:31,807 INFO L158 Benchmark]: CodeCheck took 86928.33ms. Allocated memory is still 6.6GB. Free memory was 5.7GB in the beginning and 5.1GB in the end (delta: 584.1MB). Peak memory consumption was 585.1MB. Max. memory is 16.1GB. [2023-12-03 03:53:31,811 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 111.1MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1174.96ms. Allocated memory is still 161.5MB. Free memory was 112.2MB in the beginning and 73.8MB in the end (delta: 38.4MB). Peak memory consumption was 111.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1246.95ms. Allocated memory was 161.5MB in the beginning and 404.8MB in the end (delta: 243.3MB). Free memory was 73.8MB in the beginning and 135.2MB in the end (delta: -61.4MB). Peak memory consumption was 199.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1358.38ms. Allocated memory was 404.8MB in the beginning and 809.5MB in the end (delta: 404.8MB). Free memory was 135.2MB in the beginning and 471.4MB in the end (delta: -336.3MB). Peak memory consumption was 109.4MB. Max. memory is 16.1GB. * RCFGBuilder took 29349.23ms. Allocated memory was 809.5MB in the beginning and 6.6GB in the end (delta: 5.8GB). Free memory was 471.4MB in the beginning and 5.7GB in the end (delta: -5.2GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * CodeCheck took 86928.33ms. Allocated memory is still 6.6GB. Free memory was 5.7GB in the beginning and 5.1GB in the end (delta: 584.1MB). Peak memory consumption was 585.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 03:53:32,022 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-03 03:53:32,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/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_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/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_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/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_4a4e6680-25cb-443f-b11d-60d79a97dc30/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 5c2c95c1cb01dd02dfadd0b631eee75cdb4fc1304493d91cf916e5cb361c9d74 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:53:34,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:53:34,094 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-03 03:53:34,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:53:34,128 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:53:34,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:53:34,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:53:34,130 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:53:34,131 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:53:34,131 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:53:34,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:53:34,132 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:53:34,133 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:53:34,133 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:53:34,134 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 03:53:34,134 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 03:53:34,135 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 03:53:34,136 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:53:34,136 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:53:34,137 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:53:34,137 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:53:34,138 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:53:34,138 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:53:34,139 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 03:53:34,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:53:34,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:53:34,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:53:34,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:53:34,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:53:34,142 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 03:53:34,142 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:53:34,142 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:53:34,143 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 03:53:34,143 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 03:53:34,143 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_4a4e6680-25cb-443f-b11d-60d79a97dc30/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c2c95c1cb01dd02dfadd0b631eee75cdb4fc1304493d91cf916e5cb361c9d74 [2023-12-03 03:53:34,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:53:34,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:53:34,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:53:34,487 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:53:34,487 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:53:34,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-back-serstep.c [2023-12-03 03:53:37,306 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:53:37,679 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:53:37,680 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-back-serstep.c [2023-12-03 03:53:37,708 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/data/494cd8833/d66ec30c26964c12bae591ed2c478c70/FLAG46da80868 [2023-12-03 03:53:37,722 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/data/494cd8833/d66ec30c26964c12bae591ed2c478c70 [2023-12-03 03:53:37,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:53:37,727 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:53:37,728 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:53:37,728 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:53:37,733 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:53:37,734 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:53:37" (1/1) ... [2023-12-03 03:53:37,735 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d5cd04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:53:37, skipping insertion in model container [2023-12-03 03:53:37,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:53:37" (1/1) ... [2023-12-03 03:53:37,860 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:53:38,081 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_4a4e6680-25cb-443f-b11d-60d79a97dc30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-back-serstep.c[1177,1190] [2023-12-03 03:53:38,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:53:38,542 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:53:38,554 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_4a4e6680-25cb-443f-b11d-60d79a97dc30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.1.prop1-back-serstep.c[1177,1190] [2023-12-03 03:53:38,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:53:38,764 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:53:38,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:53:38 WrapperNode [2023-12-03 03:53:38,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:53:38,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:53:38,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:53:38,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:53:38,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:53:38" (1/1) ... [2023-12-03 03:53:38,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:53:38" (1/1) ... [2023-12-03 03:53:38,987 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3892 [2023-12-03 03:53:38,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:53:38,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:53:38,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:53:38,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:53:38,997 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:53:38" (1/1) ... [2023-12-03 03:53:38,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:53:38" (1/1) ... [2023-12-03 03:53:39,021 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:53:38" (1/1) ... [2023-12-03 03:53:39,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:53:38" (1/1) ... [2023-12-03 03:53:39,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:53:38" (1/1) ... [2023-12-03 03:53:39,130 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:53:38" (1/1) ... [2023-12-03 03:53:39,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:53:38" (1/1) ... [2023-12-03 03:53:39,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:53:38" (1/1) ... [2023-12-03 03:53:39,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:53:39,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:53:39,185 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:53:39,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:53:39,186 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:53:38" (1/1) ... [2023-12-03 03:53:39,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:53:39,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:53:39,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:53:39,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:53:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:53:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 03:53:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:53:39,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:53:39,812 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:53:39,814 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:53:50,966 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:53:51,189 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:53:51,189 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 03:53:51,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:53:51 BoogieIcfgContainer [2023-12-03 03:53:51,191 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:53:51,192 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:53:51,192 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:53:51,202 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:53:51,202 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:53:51" (1/1) ... [2023-12-03 03:53:51,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:53:51,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:53:51,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 03:53:51,264 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 03:53:51,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 03:53:51,267 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:53:51,267 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:53:51,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:53:51,270 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:53:51,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 03:53:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:53:52,397 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:53:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:53:52,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 03:53:52,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:53:52,883 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 03:53:52,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 03:53:57,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:53:57,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:53:57,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-03 03:53:57,530 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-03 03:53:57,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 03:53:57,530 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:53:57,530 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:53:57,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:53:57,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:53:57,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 03:54:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:54:01,365 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:54:02,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:54:02,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 3275 conjuncts, 85 conjunts are in the unsatisfiable core [2023-12-03 03:54:02,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:54:03,679 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 03:54:03,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 03:54:08,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:54:12,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:54:16,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:54:21,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.57s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:54:25,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.40s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:54:25,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:54:25,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-03 03:54:25,789 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-03 03:54:25,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 03:54:25,791 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:54:25,791 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:54:25,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:54:25,792 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:54:25,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a4e6680-25cb-443f-b11d-60d79a97dc30/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 03:54:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:54:44,822 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:54:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:54:47,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 6192 conjuncts, 665 conjunts are in the unsatisfiable core [2023-12-03 03:54:47,438 INFO L285 TraceCheckSpWp]: Computing forward predicates...