./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/divbin.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf68f2c-4341-4756-a81a-a01371f8fe9d/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf68f2c-4341-4756-a81a-a01371f8fe9d/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_8bf68f2c-4341-4756-a81a-a01371f8fe9d/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf68f2c-4341-4756-a81a-a01371f8fe9d/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/divbin.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf68f2c-4341-4756-a81a-a01371f8fe9d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf68f2c-4341-4756-a81a-a01371f8fe9d/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 32bit --witnessprinter.graph.data.programhash c49641164907d0e2939c5443b0376a8e4377b34a58fd804ad01c6cf7d42c55dc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:17:58,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:17:58,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf68f2c-4341-4756-a81a-a01371f8fe9d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 01:17:58,863 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:17:58,864 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:17:58,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:17:58,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:17:58,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:17:58,892 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:17:58,893 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:17:58,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:17:58,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:17:58,894 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:17:58,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:17:58,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:17:58,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:17:58,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:17:58,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:17:58,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:17:58,898 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:17:58,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:17:58,904 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:17:58,905 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:17:58,905 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:17:58,905 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:17:58,906 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:17:58,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:17:58,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:17:58,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:17:58,907 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:17:58,908 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:17:58,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:17:58,908 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:17:58,909 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_8bf68f2c-4341-4756-a81a-a01371f8fe9d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf68f2c-4341-4756-a81a-a01371f8fe9d/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c49641164907d0e2939c5443b0376a8e4377b34a58fd804ad01c6cf7d42c55dc [2023-12-03 01:17:59,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:17:59,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:17:59,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:17:59,167 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:17:59,168 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:17:59,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf68f2c-4341-4756-a81a-a01371f8fe9d/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench/divbin.i [2023-12-03 01:18:01,992 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:18:02,147 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:18:02,147 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf68f2c-4341-4756-a81a-a01371f8fe9d/sv-benchmarks/c/nla-digbench/divbin.i [2023-12-03 01:18:02,155 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf68f2c-4341-4756-a81a-a01371f8fe9d/bin/ukojak-verify-Qdu7aM0XO9/data/561b54600/fecaa2e1a7324978b8ab75a13ec0cb3a/FLAG53c61b042 [2023-12-03 01:18:02,167 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf68f2c-4341-4756-a81a-a01371f8fe9d/bin/ukojak-verify-Qdu7aM0XO9/data/561b54600/fecaa2e1a7324978b8ab75a13ec0cb3a [2023-12-03 01:18:02,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:18:02,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:18:02,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:18:02,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:18:02,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:18:02,176 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:18:02" (1/1) ... [2023-12-03 01:18:02,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f536b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:18:02, skipping insertion in model container [2023-12-03 01:18:02,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:18:02" (1/1) ... [2023-12-03 01:18:02,197 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:18:02,337 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_8bf68f2c-4341-4756-a81a-a01371f8fe9d/sv-benchmarks/c/nla-digbench/divbin.i[950,963] [2023-12-03 01:18:02,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:18:02,358 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:18:02,372 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_8bf68f2c-4341-4756-a81a-a01371f8fe9d/sv-benchmarks/c/nla-digbench/divbin.i[950,963] [2023-12-03 01:18:02,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:18:02,393 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:18:02,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:18:02 WrapperNode [2023-12-03 01:18:02,394 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:18:02,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:18:02,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:18:02,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:18:02,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:18:02" (1/1) ... [2023-12-03 01:18:02,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:18:02" (1/1) ... [2023-12-03 01:18:02,427 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2023-12-03 01:18:02,427 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:18:02,428 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:18:02,428 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:18:02,429 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:18:02,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:18:02" (1/1) ... [2023-12-03 01:18:02,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:18:02" (1/1) ... [2023-12-03 01:18:02,439 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:18:02" (1/1) ... [2023-12-03 01:18:02,440 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:18:02" (1/1) ... [2023-12-03 01:18:02,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:18:02" (1/1) ... [2023-12-03 01:18:02,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:18:02" (1/1) ... [2023-12-03 01:18:02,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:18:02" (1/1) ... [2023-12-03 01:18:02,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:18:02" (1/1) ... [2023-12-03 01:18:02,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:18:02,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:18:02,449 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:18:02,449 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:18:02,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:18:02" (1/1) ... [2023-12-03 01:18:02,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:18:02,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf68f2c-4341-4756-a81a-a01371f8fe9d/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:18:02,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf68f2c-4341-4756-a81a-a01371f8fe9d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:18:02,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bf68f2c-4341-4756-a81a-a01371f8fe9d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:18:02,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:18:02,533 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-03 01:18:02,533 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-03 01:18:02,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:18:02,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:18:02,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:18:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 01:18:02,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 01:18:02,590 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:18:02,592 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:18:02,725 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:18:02,768 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:18:02,768 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-03 01:18:02,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:18:02 BoogieIcfgContainer [2023-12-03 01:18:02,770 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:18:02,771 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:18:02,772 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:18:02,782 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:18:02,782 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:18:02" (1/1) ... [2023-12-03 01:18:02,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:18:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:02,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2023-12-03 01:18:02,835 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2023-12-03 01:18:02,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 01:18:02,839 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:02,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:18:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:02,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:18:03,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:03,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:18:03,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:03,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2023-12-03 01:18:03,060 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-12-03 01:18:03,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 01:18:03,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:03,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:18:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:03,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 01:18:03,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:03,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:18:03,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:03,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 26 states and 36 transitions. [2023-12-03 01:18:03,648 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2023-12-03 01:18:03,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 01:18:03,649 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:03,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:18:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:03,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 01:18:03,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:03,861 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:18:04,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:04,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 28 states and 40 transitions. [2023-12-03 01:18:04,334 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2023-12-03 01:18:04,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 01:18:04,335 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:04,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:18:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:04,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 01:18:04,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:04,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:18:05,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:05,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 32 states and 46 transitions. [2023-12-03 01:18:05,191 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2023-12-03 01:18:05,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 01:18:05,192 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:05,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:18:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:05,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 01:18:05,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:05,266 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:18:08,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:08,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 37 states and 59 transitions. [2023-12-03 01:18:08,498 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 59 transitions. [2023-12-03 01:18:08,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 01:18:08,499 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:08,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:18:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:08,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-03 01:18:08,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:09,407 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:18:19,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:19,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 44 states and 74 transitions. [2023-12-03 01:18:19,102 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 74 transitions. [2023-12-03 01:18:19,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 01:18:19,104 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:19,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:18:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:19,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-03 01:18:19,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:21,169 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:18:36,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:36,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 49 states and 86 transitions. [2023-12-03 01:18:36,958 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 86 transitions. [2023-12-03 01:18:36,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 01:18:36,959 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:36,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:18:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:38,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-03 01:18:38,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:38,974 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:18:51,503 WARN L293 SmtUtils]: Spent 10.15s on a formula simplification. DAG size of input: 38 DAG size of output: 28 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:19:00,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:19:00,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 52 states and 92 transitions. [2023-12-03 01:19:00,241 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 92 transitions. [2023-12-03 01:19:00,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 01:19:00,242 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:19:00,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:19:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:19:02,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-03 01:19:02,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:19:17,777 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:19:25,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:19:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 56 states and 101 transitions. [2023-12-03 01:19:25,050 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 101 transitions. [2023-12-03 01:19:25,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 01:19:25,051 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:19:25,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:19:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:19:31,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-03 01:19:31,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:21:21,542 WARN L293 SmtUtils]: Spent 10.14s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-03 01:23:21,734 WARN L293 SmtUtils]: Spent 24.64s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:23:32,148 WARN L293 SmtUtils]: Spent 10.16s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-03 01:23:38,157 WARN L293 SmtUtils]: Spent 5.13s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-03 01:23:49,523 WARN L293 SmtUtils]: Spent 10.38s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-03 01:24:01,938 WARN L293 SmtUtils]: Spent 10.10s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-03 01:24:04,156 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:25:45,421 WARN L293 SmtUtils]: Spent 11.61s on a formula simplification. DAG size of input: 43 DAG size of output: 43 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:26:35,038 WARN L293 SmtUtils]: Spent 10.63s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:26:39,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:26:41,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:26:51,238 WARN L539 Checker$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 01:26:53,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:26:57,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:31:27,730 WARN L293 SmtUtils]: Spent 1.96m on a formula simplification. DAG size of input: 56 DAG size of output: 48 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)