./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/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_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/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_3fd827aa-1810-4ffc-99a1-4f350aaabd09/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 946e199240c0e980bd422384e40e4d2247ef6b3560471b18ba5a354c3628dba9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:25:08,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:25:08,990 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 22:25:08,994 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 22:25:08,994 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 22:25:09,016 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:25:09,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 22:25:09,018 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 22:25:09,019 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:25:09,019 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:25:09,020 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:25:09,020 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:25:09,021 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:25:09,021 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:25:09,022 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:25:09,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:25:09,023 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:25:09,023 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:25:09,024 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:25:09,024 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:25:09,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:25:09,025 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:25:09,026 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:25:09,026 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:25:09,027 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:25:09,027 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:25:09,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:25:09,028 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:25:09,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:25:09,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 22:25:09,029 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 22:25:09,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 22:25:09,030 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 22:25:09,030 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_3fd827aa-1810-4ffc-99a1-4f350aaabd09/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 946e199240c0e980bd422384e40e4d2247ef6b3560471b18ba5a354c3628dba9 [2023-12-02 22:25:09,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:25:09,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:25:09,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:25:09,273 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:25:09,274 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:25:09,275 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound20.c [2023-12-02 22:25:12,124 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:25:12,273 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:25:12,273 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound20.c [2023-12-02 22:25:12,280 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/data/08c5dd7aa/171423a5b5cb491e94ce737994633673/FLAG059f6d7b3 [2023-12-02 22:25:12,293 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/data/08c5dd7aa/171423a5b5cb491e94ce737994633673 [2023-12-02 22:25:12,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:25:12,296 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:25:12,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:25:12,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:25:12,302 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:25:12,302 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:25:12" (1/1) ... [2023-12-02 22:25:12,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112fdb6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:12, skipping insertion in model container [2023-12-02 22:25:12,304 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:25:12" (1/1) ... [2023-12-02 22:25:12,321 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:25:12,453 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_3fd827aa-1810-4ffc-99a1-4f350aaabd09/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound20.c[458,471] [2023-12-02 22:25:12,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:25:12,482 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:25:12,494 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_3fd827aa-1810-4ffc-99a1-4f350aaabd09/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound20.c[458,471] [2023-12-02 22:25:12,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:25:12,522 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:25:12,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:12 WrapperNode [2023-12-02 22:25:12,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:25:12,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:25:12,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:25:12,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:25:12,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:12" (1/1) ... [2023-12-02 22:25:12,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:12" (1/1) ... [2023-12-02 22:25:12,558 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2023-12-02 22:25:12,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:25:12,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:25:12,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:25:12,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:25:12,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:12" (1/1) ... [2023-12-02 22:25:12,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:12" (1/1) ... [2023-12-02 22:25:12,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:12" (1/1) ... [2023-12-02 22:25:12,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:12" (1/1) ... [2023-12-02 22:25:12,574 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:12" (1/1) ... [2023-12-02 22:25:12,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:12" (1/1) ... [2023-12-02 22:25:12,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:12" (1/1) ... [2023-12-02 22:25:12,579 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:12" (1/1) ... [2023-12-02 22:25:12,581 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:25:12,582 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:25:12,582 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:25:12,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:25:12,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:12" (1/1) ... [2023-12-02 22:25:12,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:25:12,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:25:12,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:25:12,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:25:12,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:25:12,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 22:25:12,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:25:12,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:25:12,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 22:25:12,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 22:25:12,711 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:25:12,713 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:25:12,826 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:25:12,865 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:25:12,865 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 22:25:12,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:25:12 BoogieIcfgContainer [2023-12-02 22:25:12,866 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:25:12,867 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:25:12,867 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:25:12,875 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:25:12,875 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:25:12" (1/1) ... [2023-12-02 22:25:12,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:25:12,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:12,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2023-12-02 22:25:12,930 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2023-12-02 22:25:12,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 22:25:12,932 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:12,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:13,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:25:13,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:13,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:25:13,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:13,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2023-12-02 22:25:13,110 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2023-12-02 22:25:13,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:25:13,110 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:13,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:13,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 22:25:13,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:13,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:25:13,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:13,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-12-02 22:25:13,256 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-12-02 22:25:13,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:25:13,257 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:13,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:13,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 22:25:13,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:13,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:25:13,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:13,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-12-02 22:25:13,769 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-12-02 22:25:13,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 22:25:13,774 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:13,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:13,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 22:25:13,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:14,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:25:14,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:14,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 26 states and 41 transitions. [2023-12-02 22:25:14,333 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 41 transitions. [2023-12-02 22:25:14,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 22:25:14,334 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:14,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:14,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 22:25:14,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:14,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:25:15,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:15,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 30 states and 49 transitions. [2023-12-02 22:25:15,012 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 49 transitions. [2023-12-02 22:25:15,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 22:25:15,013 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:15,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:15,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:25:15,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:15,112 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:25:15,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:15,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 38 states and 73 transitions. [2023-12-02 22:25:15,881 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 73 transitions. [2023-12-02 22:25:15,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 22:25:15,882 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:15,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:15,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 22:25:15,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:15,950 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:25:16,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:16,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 74 transitions. [2023-12-02 22:25:16,275 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 74 transitions. [2023-12-02 22:25:16,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 22:25:16,276 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:16,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:16,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 22:25:16,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:16,375 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:25:16,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:16,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 42 states and 84 transitions. [2023-12-02 22:25:16,478 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 84 transitions. [2023-12-02 22:25:16,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 22:25:16,480 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:16,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:16,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 22:25:16,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:16,636 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:25:17,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:17,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 46 states and 96 transitions. [2023-12-02 22:25:17,458 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 96 transitions. [2023-12-02 22:25:17,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 22:25:17,460 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:17,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:17,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 22:25:17,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:17,599 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:25:18,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:18,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 50 states and 112 transitions. [2023-12-02 22:25:18,175 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 112 transitions. [2023-12-02 22:25:18,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 22:25:18,176 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:18,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:18,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 22:25:18,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:18,288 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:25:30,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 22:25:31,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:31,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 52 states and 113 transitions. [2023-12-02 22:25:31,025 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 113 transitions. [2023-12-02 22:25:31,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 22:25:31,027 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:31,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:31,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 22:25:31,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:25:31,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:31,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 54 states and 114 transitions. [2023-12-02 22:25:31,504 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 114 transitions. [2023-12-02 22:25:31,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 22:25:31,505 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:31,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:31,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 22:25:31,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:31,579 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:25:32,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 58 states and 131 transitions. [2023-12-02 22:25:32,315 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 131 transitions. [2023-12-02 22:25:32,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 22:25:32,316 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:32,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:32,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 22:25:32,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:32,567 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 22:25:34,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:34,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 68 states and 172 transitions. [2023-12-02 22:25:34,422 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 172 transitions. [2023-12-02 22:25:34,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 22:25:34,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:34,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:34,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 22:25:34,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:34,509 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 22:25:34,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:34,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 70 states and 174 transitions. [2023-12-02 22:25:34,914 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 174 transitions. [2023-12-02 22:25:34,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 22:25:34,915 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:34,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:35,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 22:25:35,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 22:25:36,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:36,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 74 states and 190 transitions. [2023-12-02 22:25:36,238 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 190 transitions. [2023-12-02 22:25:36,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 22:25:36,239 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:36,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:36,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 22:25:36,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 22:25:36,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:36,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 76 states and 191 transitions. [2023-12-02 22:25:36,982 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 191 transitions. [2023-12-02 22:25:36,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 22:25:36,983 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:36,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:37,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 22:25:37,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:37,190 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:25:37,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:37,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 80 states and 213 transitions. [2023-12-02 22:25:37,997 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 213 transitions. [2023-12-02 22:25:37,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 22:25:37,998 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:37,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:38,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 22:25:38,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:38,140 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 22:25:38,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:38,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 82 states and 214 transitions. [2023-12-02 22:25:38,653 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 214 transitions. [2023-12-02 22:25:38,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 22:25:38,653 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:38,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:38,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 22:25:38,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:38,795 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 22:25:39,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:39,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 84 states and 215 transitions. [2023-12-02 22:25:39,378 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 215 transitions. [2023-12-02 22:25:39,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 22:25:39,379 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:39,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:39,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 22:25:39,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:39,437 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:25:40,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:40,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 88 states and 238 transitions. [2023-12-02 22:25:40,513 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 238 transitions. [2023-12-02 22:25:40,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 22:25:40,514 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:40,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:40,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 22:25:40,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:40,575 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:25:40,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:40,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 88 states and 237 transitions. [2023-12-02 22:25:40,826 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 237 transitions. [2023-12-02 22:25:40,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 22:25:40,827 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:40,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:40,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 22:25:40,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:41,135 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 22:25:43,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:43,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 98 states and 288 transitions. [2023-12-02 22:25:43,918 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 288 transitions. [2023-12-02 22:25:43,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 22:25:43,919 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:43,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:43,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 22:25:43,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 22:25:45,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:45,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 102 states and 291 transitions. [2023-12-02 22:25:45,234 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 291 transitions. [2023-12-02 22:25:45,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 22:25:45,235 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:45,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:45,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 22:25:45,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:45,315 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 22:25:45,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:25:45,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 104 states and 293 transitions. [2023-12-02 22:25:45,868 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 293 transitions. [2023-12-02 22:25:45,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 22:25:45,869 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:25:45,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:25:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:25:47,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 22:25:47,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:25:47,899 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 13 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 22:26:00,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 22:26:01,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:01,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 108 states and 313 transitions. [2023-12-02 22:26:01,769 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 313 transitions. [2023-12-02 22:26:01,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 22:26:01,771 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:01,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:03,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 22:26:03,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:03,818 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 14 proven. 39 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 22:26:04,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:04,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 110 states and 314 transitions. [2023-12-02 22:26:04,832 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 314 transitions. [2023-12-02 22:26:04,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 22:26:04,834 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:04,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:07,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 22:26:07,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:07,362 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 13 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 22:26:08,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:08,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 112 states and 315 transitions. [2023-12-02 22:26:08,145 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 315 transitions. [2023-12-02 22:26:08,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 22:26:08,146 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:08,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:11,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 22:26:11,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:11,892 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 13 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 22:26:12,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:12,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 114 states and 316 transitions. [2023-12-02 22:26:12,702 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 316 transitions. [2023-12-02 22:26:12,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 22:26:12,702 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:12,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:12,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 22:26:12,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:12,987 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:26:14,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:14,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 118 states and 344 transitions. [2023-12-02 22:26:14,191 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 344 transitions. [2023-12-02 22:26:14,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 22:26:14,192 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:14,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:15,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 22:26:15,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:15,840 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 13 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 22:26:16,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:16,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 120 states and 345 transitions. [2023-12-02 22:26:16,544 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 345 transitions. [2023-12-02 22:26:16,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 22:26:16,544 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:16,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:16,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 22:26:16,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:16,607 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:26:18,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:18,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 124 states and 374 transitions. [2023-12-02 22:26:18,043 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 374 transitions. [2023-12-02 22:26:18,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 22:26:18,044 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:18,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:18,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 22:26:18,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:18,118 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:26:18,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:18,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 124 states and 373 transitions. [2023-12-02 22:26:18,565 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 373 transitions. [2023-12-02 22:26:18,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 22:26:18,566 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:18,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:18,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 22:26:18,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:18,637 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:26:19,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:19,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 124 states and 372 transitions. [2023-12-02 22:26:19,030 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 372 transitions. [2023-12-02 22:26:19,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 22:26:19,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:19,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:19,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 22:26:19,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 22:26:23,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:23,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 134 states and 435 transitions. [2023-12-02 22:26:23,431 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 435 transitions. [2023-12-02 22:26:23,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 22:26:23,432 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:23,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:23,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 22:26:23,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:23,539 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 22:26:24,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:24,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 136 states and 437 transitions. [2023-12-02 22:26:24,434 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 437 transitions. [2023-12-02 22:26:24,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 22:26:24,435 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:24,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:24,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 22:26:24,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:24,543 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 22:26:25,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:25,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 138 states and 438 transitions. [2023-12-02 22:26:25,377 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 438 transitions. [2023-12-02 22:26:25,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 22:26:25,378 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:25,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:25,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 22:26:25,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:25,478 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 22:26:26,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:26,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 140 states and 440 transitions. [2023-12-02 22:26:26,288 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 440 transitions. [2023-12-02 22:26:26,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 22:26:26,288 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:26,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:26,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 22:26:26,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:26,388 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 22:26:27,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:27,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 142 states and 442 transitions. [2023-12-02 22:26:27,299 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 442 transitions. [2023-12-02 22:26:27,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 22:26:27,300 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:27,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:27,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 22:26:27,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:27,426 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 22:26:28,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:28,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 144 states and 443 transitions. [2023-12-02 22:26:28,392 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 443 transitions. [2023-12-02 22:26:28,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 22:26:28,393 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:28,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:30,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 22:26:30,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:30,614 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 18 proven. 59 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 22:26:32,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:32,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 148 states and 467 transitions. [2023-12-02 22:26:32,919 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 467 transitions. [2023-12-02 22:26:32,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 22:26:32,919 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:32,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:35,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 22:26:35,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:35,695 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 18 proven. 59 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 22:26:49,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 13.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 22:26:50,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:50,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 150 states and 468 transitions. [2023-12-02 22:26:50,378 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 468 transitions. [2023-12-02 22:26:50,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 22:26:50,379 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:50,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:26:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:26:50,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 22:26:50,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:26:50,746 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:26:52,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:26:52,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 154 states and 502 transitions. [2023-12-02 22:26:52,338 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 502 transitions. [2023-12-02 22:26:52,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 22:26:52,339 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:26:52,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:27:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 22:27:02,369 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 22:27:02,371 INFO L158 Benchmark]: Toolchain (without parser) took 110074.50ms. Allocated memory was 182.5MB in the beginning and 276.8MB in the end (delta: 94.4MB). Free memory was 137.0MB in the beginning and 80.6MB in the end (delta: 56.3MB). Peak memory consumption was 152.3MB. Max. memory is 16.1GB. [2023-12-02 22:27:02,371 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 109.1MB. Free memory is still 59.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:27:02,372 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.57ms. Allocated memory is still 182.5MB. Free memory was 136.4MB in the beginning and 126.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 22:27:02,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.37ms. Allocated memory is still 182.5MB. Free memory was 125.4MB in the beginning and 124.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 22:27:02,372 INFO L158 Benchmark]: Boogie Preprocessor took 22.20ms. Allocated memory is still 182.5MB. Free memory was 124.3MB in the beginning and 123.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:27:02,373 INFO L158 Benchmark]: RCFGBuilder took 284.09ms. Allocated memory is still 182.5MB. Free memory was 122.8MB in the beginning and 110.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 22:27:02,374 INFO L158 Benchmark]: CodeCheck took 109503.33ms. Allocated memory was 182.5MB in the beginning and 276.8MB in the end (delta: 94.4MB). Free memory was 110.3MB in the beginning and 80.6MB in the end (delta: 29.6MB). Peak memory consumption was 127.1MB. Max. memory is 16.1GB. [2023-12-02 22:27:02,376 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 0.30ms. Allocated memory is still 109.1MB. Free memory is still 59.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.57ms. Allocated memory is still 182.5MB. Free memory was 136.4MB in the beginning and 126.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.37ms. Allocated memory is still 182.5MB. Free memory was 125.4MB in the beginning and 124.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.20ms. Allocated memory is still 182.5MB. Free memory was 124.3MB in the beginning and 123.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 284.09ms. Allocated memory is still 182.5MB. Free memory was 122.8MB in the beginning and 110.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 109503.33ms. Allocated memory was 182.5MB in the beginning and 276.8MB in the end (delta: 94.4MB). Free memory was 110.3MB in the beginning and 80.6MB in the end (delta: 29.6MB). Peak memory consumption was 127.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 22:27:02,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 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_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/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_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/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 946e199240c0e980bd422384e40e4d2247ef6b3560471b18ba5a354c3628dba9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:27:04,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:27:04,314 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-02 22:27:04,346 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:27:04,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 22:27:04,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 22:27:04,349 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:27:04,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:27:04,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:27:04,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:27:04,352 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:27:04,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:27:04,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:27:04,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:27:04,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:27:04,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:27:04,355 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 22:27:04,355 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 22:27:04,356 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 22:27:04,356 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:27:04,357 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:27:04,358 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:27:04,358 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:27:04,359 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:27:04,359 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:27:04,359 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:27:04,360 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 22:27:04,360 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:27:04,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:27:04,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:27:04,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:27:04,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 22:27:04,362 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 22:27:04,363 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:27:04,363 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 22:27:04,363 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 22:27:04,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 22:27:04,364 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_3fd827aa-1810-4ffc-99a1-4f350aaabd09/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 946e199240c0e980bd422384e40e4d2247ef6b3560471b18ba5a354c3628dba9 [2023-12-02 22:27:04,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:27:04,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:27:04,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:27:04,700 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:27:04,701 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:27:04,702 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound20.c [2023-12-02 22:27:07,437 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:27:07,600 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:27:07,601 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound20.c [2023-12-02 22:27:07,607 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/data/755febf39/643e24e3996641458ad2cc7544a450a2/FLAG3c3aad331 [2023-12-02 22:27:07,620 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/data/755febf39/643e24e3996641458ad2cc7544a450a2 [2023-12-02 22:27:07,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:27:07,623 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:27:07,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:27:07,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:27:07,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:27:07,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:27:07" (1/1) ... [2023-12-02 22:27:07,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ee8f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:07, skipping insertion in model container [2023-12-02 22:27:07,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:27:07" (1/1) ... [2023-12-02 22:27:07,649 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:27:07,792 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_3fd827aa-1810-4ffc-99a1-4f350aaabd09/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound20.c[458,471] [2023-12-02 22:27:07,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:27:07,827 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:27:07,838 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_3fd827aa-1810-4ffc-99a1-4f350aaabd09/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound20.c[458,471] [2023-12-02 22:27:07,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:27:07,861 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:27:07,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:07 WrapperNode [2023-12-02 22:27:07,862 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:27:07,863 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:27:07,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:27:07,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:27:07,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:07" (1/1) ... [2023-12-02 22:27:07,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:07" (1/1) ... [2023-12-02 22:27:07,896 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2023-12-02 22:27:07,897 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:27:07,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:27:07,898 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:27:07,898 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:27:07,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:07" (1/1) ... [2023-12-02 22:27:07,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:07" (1/1) ... [2023-12-02 22:27:07,908 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:07" (1/1) ... [2023-12-02 22:27:07,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:07" (1/1) ... [2023-12-02 22:27:07,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:07" (1/1) ... [2023-12-02 22:27:07,918 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:07" (1/1) ... [2023-12-02 22:27:07,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:07" (1/1) ... [2023-12-02 22:27:07,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:07" (1/1) ... [2023-12-02 22:27:07,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:27:07,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:27:07,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:27:07,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:27:07,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:07" (1/1) ... [2023-12-02 22:27:07,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:27:07,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:27:07,962 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:27:07,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:27:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:27:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 22:27:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:27:08,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:27:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 22:27:08,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 22:27:08,075 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:27:08,078 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:27:08,419 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:27:08,469 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:27:08,469 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 22:27:08,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:27:08 BoogieIcfgContainer [2023-12-02 22:27:08,471 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:27:08,472 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:27:08,473 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:27:08,483 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:27:08,483 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:27:08" (1/1) ... [2023-12-02 22:27:08,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:27:08,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:08,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2023-12-02 22:27:08,549 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2023-12-02 22:27:08,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 22:27:08,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:08,552 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:27:08,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:27:08,581 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:27:08,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 22:27:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:08,655 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:27:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:08,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:27:08,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:27:08,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:27:08,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 22:27:08,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:08,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2023-12-02 22:27:08,939 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2023-12-02 22:27:08,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:27:08,940 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:08,940 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:27:08,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:27:08,941 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:27:08,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 22:27:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:09,364 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:27:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:09,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 22:27:09,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:27:09,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:27:09,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 22:27:09,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:09,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-12-02 22:27:09,734 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-12-02 22:27:09,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:27:09,735 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:09,735 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:27:09,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:27:09,736 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:27:09,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 22:27:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:10,138 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:27:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:10,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 22:27:10,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:27:10,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:27:10,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 22:27:13,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:27:13,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-12-02 22:27:13,149 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-12-02 22:27:13,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 22:27:13,153 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:27:13,154 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:27:13,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:27:13,155 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:27:13,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 22:27:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:13,200 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:27:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:27:13,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 22:27:13,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:27:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:27:38,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 22:28:18,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:28:25,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:28:25,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:28:25,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 26 states and 41 transitions. [2023-12-02 22:28:25,847 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 41 transitions. [2023-12-02 22:28:25,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 22:28:25,848 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:28:25,848 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:28:25,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:28:25,849 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:28:25,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 22:28:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:28:26,697 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:28:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:28:27,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:28:27,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:28:29,957 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:28:29,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 22:28:44,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:30:41,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:30:44,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:30:48,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:30:55,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:30:55,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 34 states and 61 transitions. [2023-12-02 22:30:55,069 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2023-12-02 22:30:55,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 22:30:55,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:30:55,070 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:30:55,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:30:55,071 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:30:55,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 22:30:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:30:55,897 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:30:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:30:56,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 22:30:56,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:30:57,819 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:30:57,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 22:32:33,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:33,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 38 states and 71 transitions. [2023-12-02 22:32:33,231 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 71 transitions. [2023-12-02 22:32:33,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 22:32:33,232 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:33,233 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:32:33,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:32:33,234 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:32:33,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 22:32:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:33,683 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:32:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:34,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 22:32:34,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:32:37,550 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:32:37,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-02 22:34:26,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:34:26,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 40 states and 83 transitions. [2023-12-02 22:34:26,440 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 83 transitions. [2023-12-02 22:34:26,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 22:34:26,441 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:34:26,441 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:34:26,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:34:26,442 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:34:26,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 22:34:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:27,762 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:34:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:28,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 22:34:28,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:34:30,959 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:34:30,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 22:36:08,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:36:41,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:41,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 44 states and 93 transitions. [2023-12-02 22:36:41,105 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 93 transitions. [2023-12-02 22:36:41,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 22:36:41,107 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:41,107 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:36:41,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:36:41,108 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:36:41,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 22:36:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:42,419 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:36:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:43,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 22:36:43,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:43,939 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 22:36:43,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-02 22:38:11,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:38:28,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:38:47,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:47,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 47 states and 97 transitions. [2023-12-02 22:38:47,855 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 97 transitions. [2023-12-02 22:38:47,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 22:38:47,857 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:47,857 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:47,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:47,858 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:47,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 22:38:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:49,174 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:50,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 22:38:50,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:59,224 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:38:59,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fd827aa-1810-4ffc-99a1-4f350aaabd09/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 22:40:01,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:40:07,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:40:09,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []