./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL --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 39b9505d3a064a677b57bccb6de3a4c04e873275d34ee3c16e80371638b07149 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:17:45,048 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:17:45,169 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:17:45,178 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:17:45,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:17:45,223 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:17:45,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:17:45,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:17:45,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:17:45,233 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:17:45,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:17:45,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:17:45,236 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:17:45,237 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:17:45,238 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:17:45,238 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:17:45,239 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:17:45,239 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:17:45,240 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:17:45,240 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:17:45,241 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:17:45,241 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:17:45,242 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:17:45,242 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:17:45,242 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:17:45,243 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:17:45,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:17:45,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:17:45,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:17:45,245 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:17:45,247 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:17:45,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:17:45,247 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:17:45,248 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_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39b9505d3a064a677b57bccb6de3a4c04e873275d34ee3c16e80371638b07149 [2023-11-19 03:17:45,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:17:45,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:17:45,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:17:45,570 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:17:45,570 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:17:45,572 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c [2023-11-19 03:17:48,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:17:48,896 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:17:48,897 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c [2023-11-19 03:17:48,906 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/data/737d7471a/5d74c34e1fe24ff382a0027bd243a513/FLAGe1d0fbda2 [2023-11-19 03:17:48,923 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/data/737d7471a/5d74c34e1fe24ff382a0027bd243a513 [2023-11-19 03:17:48,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:17:48,927 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:17:48,928 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:17:48,929 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:17:48,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:17:48,936 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:17:48" (1/1) ... [2023-11-19 03:17:48,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c269485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:48, skipping insertion in model container [2023-11-19 03:17:48,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:17:48" (1/1) ... [2023-11-19 03:17:48,969 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:17:49,126 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_5150680c-023b-4858-9957-480e0a11c638/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c[526,539] [2023-11-19 03:17:49,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:17:49,156 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:17:49,171 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_5150680c-023b-4858-9957-480e0a11c638/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c[526,539] [2023-11-19 03:17:49,178 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:17:49,194 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:17:49,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:49 WrapperNode [2023-11-19 03:17:49,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:17:49,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:17:49,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:17:49,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:17:49,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:49" (1/1) ... [2023-11-19 03:17:49,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:49" (1/1) ... [2023-11-19 03:17:49,239 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2023-11-19 03:17:49,239 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:17:49,241 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:17:49,241 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:17:49,241 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:17:49,251 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:49" (1/1) ... [2023-11-19 03:17:49,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:49" (1/1) ... [2023-11-19 03:17:49,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:49" (1/1) ... [2023-11-19 03:17:49,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:49" (1/1) ... [2023-11-19 03:17:49,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:49" (1/1) ... [2023-11-19 03:17:49,275 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:49" (1/1) ... [2023-11-19 03:17:49,281 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:49" (1/1) ... [2023-11-19 03:17:49,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:49" (1/1) ... [2023-11-19 03:17:49,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:17:49,291 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:17:49,291 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:17:49,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:17:49,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:49" (1/1) ... [2023-11-19 03:17:49,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:17:49,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:17:49,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:17:49,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:17:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:17:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:17:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:17:49,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:17:49,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:17:49,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:17:49,460 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:17:49,463 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:17:49,649 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:17:49,707 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:17:49,707 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:17:49,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:17:49 BoogieIcfgContainer [2023-11-19 03:17:49,713 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:17:49,714 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:17:49,714 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:17:49,725 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:17:49,725 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:17:49" (1/1) ... [2023-11-19 03:17:49,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:17:49,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:49,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2023-11-19 03:17:49,798 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2023-11-19 03:17:49,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:17:49,803 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:49,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:50,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:17:50,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:50,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 38 transitions. [2023-11-19 03:17:50,267 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2023-11-19 03:17:50,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:17:50,269 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:50,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:50,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:17:50,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:50,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 27 states and 42 transitions. [2023-11-19 03:17:50,518 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2023-11-19 03:17:50,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 03:17:50,519 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:50,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:50,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:17:50,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:50,759 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:17:51,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:51,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 49 transitions. [2023-11-19 03:17:51,085 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2023-11-19 03:17:51,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 03:17:51,089 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:51,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:51,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:17:51,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:51,260 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 03:17:51,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:51,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 34 states and 54 transitions. [2023-11-19 03:17:51,492 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 54 transitions. [2023-11-19 03:17:51,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 03:17:51,493 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:51,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:51,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:17:51,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:51,635 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 03:17:51,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:51,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 38 states and 63 transitions. [2023-11-19 03:17:51,693 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 63 transitions. [2023-11-19 03:17:51,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 03:17:51,697 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:51,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:51,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 03:17:51,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:52,065 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 03:17:52,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:52,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 42 states and 71 transitions. [2023-11-19 03:17:52,642 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2023-11-19 03:17:52,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:17:52,643 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:52,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:52,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:17:52,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:52,735 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 03:17:52,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:52,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 45 states and 80 transitions. [2023-11-19 03:17:52,792 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 80 transitions. [2023-11-19 03:17:52,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 03:17:52,794 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:52,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:52,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:17:52,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:52,872 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 03:17:53,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:53,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 46 states and 81 transitions. [2023-11-19 03:17:53,057 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 81 transitions. [2023-11-19 03:17:53,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 03:17:53,067 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:53,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:53,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 03:17:53,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:53,194 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 03:17:53,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:53,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 49 states and 86 transitions. [2023-11-19 03:17:53,553 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 86 transitions. [2023-11-19 03:17:53,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 03:17:53,554 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:53,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:53,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:17:53,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:53,674 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-19 03:17:53,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:53,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 49 states and 85 transitions. [2023-11-19 03:17:53,876 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 85 transitions. [2023-11-19 03:17:53,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 03:17:53,877 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:53,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:53,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 03:17:53,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:54,008 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 03:17:54,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:54,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 53 states and 96 transitions. [2023-11-19 03:17:54,090 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 96 transitions. [2023-11-19 03:17:54,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 03:17:54,091 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:54,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:54,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 03:17:54,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:54,295 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 03:17:54,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:54,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 57 states and 104 transitions. [2023-11-19 03:17:54,944 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 104 transitions. [2023-11-19 03:17:54,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 03:17:54,945 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:54,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:54,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:17:54,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:55,086 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 03:17:55,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:55,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 58 states and 107 transitions. [2023-11-19 03:17:55,355 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 107 transitions. [2023-11-19 03:17:55,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 03:17:55,356 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:55,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:55,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-19 03:17:55,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:55,770 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 27 proven. 17 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-19 03:17:56,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:56,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 63 states and 123 transitions. [2023-11-19 03:17:56,297 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 123 transitions. [2023-11-19 03:17:56,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 03:17:56,298 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:56,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:56,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 03:17:56,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:56,624 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 03:17:56,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:56,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 64 states and 124 transitions. [2023-11-19 03:17:56,821 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 124 transitions. [2023-11-19 03:17:56,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 03:17:56,822 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:56,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:56,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-19 03:17:56,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:57,036 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 17 proven. 33 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-19 03:17:57,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:57,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 64 states and 124 transitions. [2023-11-19 03:17:57,660 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 124 transitions. [2023-11-19 03:17:57,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 03:17:57,661 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:57,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:57,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:17:57,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:57,765 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-11-19 03:17:58,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:58,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 64 states and 123 transitions. [2023-11-19 03:17:58,027 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 123 transitions. [2023-11-19 03:17:58,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 03:17:58,028 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:58,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:58,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 03:17:58,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:58,175 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 15 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-19 03:17:58,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:17:58,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 68 states and 135 transitions. [2023-11-19 03:17:58,302 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 135 transitions. [2023-11-19 03:17:58,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 03:17:58,303 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:17:58,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:17:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:17:58,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-19 03:17:58,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:17:58,901 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 31 proven. 25 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 03:18:00,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:00,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 77 states and 152 transitions. [2023-11-19 03:18:00,611 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 152 transitions. [2023-11-19 03:18:00,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 03:18:00,613 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:00,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:00,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:18:00,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:00,910 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-19 03:18:01,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:01,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 66 states and 129 transitions. [2023-11-19 03:18:01,371 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 129 transitions. [2023-11-19 03:18:01,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 03:18:01,372 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:01,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:01,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 03:18:01,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:01,619 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 03:18:02,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:02,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 66 states and 128 transitions. [2023-11-19 03:18:02,050 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 128 transitions. [2023-11-19 03:18:02,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 03:18:02,051 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:02,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:02,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-19 03:18:02,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:02,537 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 22 proven. 17 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 03:18:03,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:03,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 72 states and 145 transitions. [2023-11-19 03:18:03,645 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 145 transitions. [2023-11-19 03:18:03,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-19 03:18:03,647 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:03,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:03,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:18:03,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:03,853 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 03:18:04,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:04,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 74 states and 148 transitions. [2023-11-19 03:18:04,163 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 148 transitions. [2023-11-19 03:18:04,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 03:18:04,165 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:04,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:04,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-19 03:18:04,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:05,385 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-11-19 03:18:06,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:06,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 81 states and 163 transitions. [2023-11-19 03:18:06,253 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 163 transitions. [2023-11-19 03:18:06,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 03:18:06,255 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:06,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:06,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-19 03:18:06,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:07,239 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 25 proven. 60 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-11-19 03:18:07,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:07,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 82 states and 164 transitions. [2023-11-19 03:18:07,590 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 164 transitions. [2023-11-19 03:18:07,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 03:18:07,591 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:07,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:07,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-19 03:18:07,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:07,826 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 27 proven. 65 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-19 03:18:08,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:08,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 84 states and 167 transitions. [2023-11-19 03:18:08,359 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 167 transitions. [2023-11-19 03:18:08,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 03:18:08,361 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:08,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:08,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-19 03:18:08,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:09,242 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 47 proven. 52 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-19 03:18:10,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:10,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 89 states and 180 transitions. [2023-11-19 03:18:10,594 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 180 transitions. [2023-11-19 03:18:10,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-19 03:18:10,597 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:10,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:10,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:18:10,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:10,822 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 36 proven. 27 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-19 03:18:11,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:11,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 55 states and 80 transitions. [2023-11-19 03:18:11,253 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2023-11-19 03:18:11,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-19 03:18:11,255 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:11,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:11,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-19 03:18:11,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:11,684 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 49 proven. 55 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 03:18:12,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:12,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 50 states and 75 transitions. [2023-11-19 03:18:12,331 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 75 transitions. [2023-11-19 03:18:12,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:18:12,331 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 30 iterations. [2023-11-19 03:18:12,342 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 03:18:13,164 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:18:13,168 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:18:13,169 INFO L560 CodeCheckObserver]: Invariant with dag size 36 [2023-11-19 03:18:13,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:18:13 ImpRootNode [2023-11-19 03:18:13,174 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:18:13,175 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:18:13,175 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:18:13,175 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:18:13,175 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:17:49" (3/4) ... [2023-11-19 03:18:13,180 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:18:13,183 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-19 03:18:13,189 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-19 03:18:13,189 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-19 03:18:13,190 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 03:18:13,190 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:18:13,190 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:18:13,319 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:18:13,321 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:18:13,321 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:18:13,322 INFO L158 Benchmark]: Toolchain (without parser) took 24394.95ms. Allocated memory was 195.0MB in the beginning and 408.9MB in the end (delta: 213.9MB). Free memory was 148.8MB in the beginning and 224.9MB in the end (delta: -76.1MB). Peak memory consumption was 139.9MB. Max. memory is 16.1GB. [2023-11-19 03:18:13,322 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:18:13,323 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.62ms. Allocated memory is still 195.0MB. Free memory was 148.3MB in the beginning and 137.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:18:13,323 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.39ms. Allocated memory is still 195.0MB. Free memory was 137.3MB in the beginning and 135.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:18:13,326 INFO L158 Benchmark]: Boogie Preprocessor took 49.39ms. Allocated memory is still 195.0MB. Free memory was 135.7MB in the beginning and 134.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:18:13,326 INFO L158 Benchmark]: RCFGBuilder took 421.84ms. Allocated memory is still 195.0MB. Free memory was 134.7MB in the beginning and 120.1MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 03:18:13,327 INFO L158 Benchmark]: CodeCheck took 23460.50ms. Allocated memory was 195.0MB in the beginning and 408.9MB in the end (delta: 213.9MB). Free memory was 120.1MB in the beginning and 230.0MB in the end (delta: -109.9MB). Peak memory consumption was 106.4MB. Max. memory is 16.1GB. [2023-11-19 03:18:13,327 INFO L158 Benchmark]: Witness Printer took 146.62ms. Allocated memory is still 408.9MB. Free memory was 230.0MB in the beginning and 224.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:18:13,332 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.6s, OverallIterations: 30, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1989 SdHoareTripleChecker+Valid, 23.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1225 mSDsluCounter, 3325 SdHoareTripleChecker+Invalid, 20.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2200 mSDsCounter, 4409 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10498 IncrementalHoareTripleChecker+Invalid, 14907 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4409 mSolverCounterUnsat, 1125 mSDtfsCounter, 10498 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13146 GetRequests, 12521 SyntacticMatches, 383 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37741 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 1562 NumberOfCodeBlocks, 1562 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 1533 ConstructedInterpolants, 0 QuantifiedInterpolants, 6529 SizeOfPredicates, 56 NumberOfNonLiveVariables, 4227 ConjunctsInSsa, 534 ConjunctsInUnsatCore, 29 InterpolantComputations, 12 PerfectInterpolantSequences, 5041/5506 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 17]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((!((((p == 4) && (d == 4)) && (B == 1))) && !((((d == 1) && (p == 1)) && (B == 1)))) && !((((2 == p) && (B == 1)) && (2 == d)))) || ((1 <= r) && (2 == d))) || (((p == 1) && (A <= 2)) && (0 <= A))) || !((A == r))) || !((q == 0))) || ((2 <= r) && (d == 4))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.62ms. Allocated memory is still 195.0MB. Free memory was 148.3MB in the beginning and 137.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.39ms. Allocated memory is still 195.0MB. Free memory was 137.3MB in the beginning and 135.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.39ms. Allocated memory is still 195.0MB. Free memory was 135.7MB in the beginning and 134.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 421.84ms. Allocated memory is still 195.0MB. Free memory was 134.7MB in the beginning and 120.1MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 23460.50ms. Allocated memory was 195.0MB in the beginning and 408.9MB in the end (delta: 213.9MB). Free memory was 120.1MB in the beginning and 230.0MB in the end (delta: -109.9MB). Peak memory consumption was 106.4MB. Max. memory is 16.1GB. * Witness Printer took 146.62ms. Allocated memory is still 408.9MB. Free memory was 230.0MB in the beginning and 224.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:18:13,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5150680c-023b-4858-9957-480e0a11c638/bin/ukojak-verify-G8NBE6pJGL/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 Writing output log to file Ultimate.log Result: TRUE