./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.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_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/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_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/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_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/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 5cb4924cbdb465eb5009b33592f9047ad895ad10dbe627600c12529f62c9845d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:50:57,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:50:57,713 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 23:50:57,717 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:50:57,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:50:57,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:50:57,741 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:50:57,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:50:57,742 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:50:57,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:50:57,743 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:50:57,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:50:57,744 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:50:57,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:50:57,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:50:57,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:50:57,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:50:57,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:50:57,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:50:57,747 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:50:57,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:50:57,749 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:50:57,749 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:50:57,750 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:50:57,750 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:50:57,750 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:50:57,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:50:57,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:50:57,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:50:57,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:50:57,752 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:50:57,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:50:57,753 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:50:57,754 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_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cb4924cbdb465eb5009b33592f9047ad895ad10dbe627600c12529f62c9845d [2023-12-02 23:50:58,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:50:58,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:50:58,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:50:58,031 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:50:58,031 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:50:58,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c [2023-12-02 23:51:00,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:51:00,924 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:51:00,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c [2023-12-02 23:51:00,932 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/bin/ukojak-verify-Qdu7aM0XO9/data/2683934bc/76c4dcf685024b39bb76c8185a37551d/FLAGc0cead5c8 [2023-12-02 23:51:00,944 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/bin/ukojak-verify-Qdu7aM0XO9/data/2683934bc/76c4dcf685024b39bb76c8185a37551d [2023-12-02 23:51:00,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:51:00,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:51:00,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:51:00,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:51:00,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:51:00,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:51:00" (1/1) ... [2023-12-02 23:51:00,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73517f3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:51:00, skipping insertion in model container [2023-12-02 23:51:00,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:51:00" (1/1) ... [2023-12-02 23:51:00,973 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:51:01,122 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_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c[520,533] [2023-12-02 23:51:01,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:51:01,148 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:51:01,161 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_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c[520,533] [2023-12-02 23:51:01,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:51:01,182 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:51:01,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:51:01 WrapperNode [2023-12-02 23:51:01,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:51:01,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:51:01,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:51:01,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:51:01,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:51:01" (1/1) ... [2023-12-02 23:51:01,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:51:01" (1/1) ... [2023-12-02 23:51:01,216 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2023-12-02 23:51:01,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:51:01,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:51:01,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:51:01,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:51:01,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:51:01" (1/1) ... [2023-12-02 23:51:01,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:51:01" (1/1) ... [2023-12-02 23:51:01,227 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:51:01" (1/1) ... [2023-12-02 23:51:01,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:51:01" (1/1) ... [2023-12-02 23:51:01,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:51:01" (1/1) ... [2023-12-02 23:51:01,234 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:51:01" (1/1) ... [2023-12-02 23:51:01,235 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:51:01" (1/1) ... [2023-12-02 23:51:01,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:51:01" (1/1) ... [2023-12-02 23:51:01,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:51:01,238 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:51:01,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:51:01,239 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:51:01,239 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:51:01" (1/1) ... [2023-12-02 23:51:01,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:51:01,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:51:01,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:51:01,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:51:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:51:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:51:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:51:01,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:51:01,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 23:51:01,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 23:51:01,372 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:51:01,374 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:51:01,485 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:51:01,525 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:51:01,525 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:51:01,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:51:01 BoogieIcfgContainer [2023-12-02 23:51:01,527 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:51:01,528 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:51:01,528 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:51:01,538 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:51:01,538 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:51:01" (1/1) ... [2023-12-02 23:51:01,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:51:01,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:01,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2023-12-02 23:51:01,602 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2023-12-02 23:51:01,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 23:51:01,603 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:01,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:01,897 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 23:51:01,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:01,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2023-12-02 23:51:01,995 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2023-12-02 23:51:01,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 23:51:01,998 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:01,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:02,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 23:51:02,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:02,212 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 23:51:02,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:02,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 39 transitions. [2023-12-02 23:51:02,513 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2023-12-02 23:51:02,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:51:02,514 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:02,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:02,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 23:51:02,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:02,620 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 23:51:02,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:02,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 25 states and 42 transitions. [2023-12-02 23:51:02,742 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 42 transitions. [2023-12-02 23:51:02,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 23:51:02,744 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:02,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:02,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:02,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:02,832 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 23:51:02,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:02,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 28 states and 47 transitions. [2023-12-02 23:51:02,974 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2023-12-02 23:51:02,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 23:51:02,975 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:02,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:03,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 23:51:03,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:51:03,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:03,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 52 transitions. [2023-12-02 23:51:03,264 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2023-12-02 23:51:03,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 23:51:03,265 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:03,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:03,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:03,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:03,358 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 23:51:03,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:03,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 55 transitions. [2023-12-02 23:51:03,556 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2023-12-02 23:51:03,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 23:51:03,557 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:03,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:03,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 23:51:03,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:03,675 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 23:51:03,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:03,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 57 transitions. [2023-12-02 23:51:03,921 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2023-12-02 23:51:03,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 23:51:03,922 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:03,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:03,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:03,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:04,192 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 23:51:04,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:04,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 56 transitions. [2023-12-02 23:51:04,646 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2023-12-02 23:51:04,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 23:51:04,647 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:04,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:04,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 23:51:04,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:04,766 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 23:51:04,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:04,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 60 transitions. [2023-12-02 23:51:04,975 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 60 transitions. [2023-12-02 23:51:04,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 23:51:04,976 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:04,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:05,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:05,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:05,030 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-02 23:51:05,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:05,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 36 states and 61 transitions. [2023-12-02 23:51:05,146 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 61 transitions. [2023-12-02 23:51:05,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 23:51:05,148 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:05,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:05,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 23:51:05,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:05,265 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-02 23:51:05,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:05,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 39 states and 67 transitions. [2023-12-02 23:51:05,488 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 67 transitions. [2023-12-02 23:51:05,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 23:51:05,490 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:05,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:05,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:05,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:05,554 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-12-02 23:51:05,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:05,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 39 states and 66 transitions. [2023-12-02 23:51:05,610 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 66 transitions. [2023-12-02 23:51:05,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 23:51:05,611 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:05,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:05,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 23:51:05,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:05,808 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 31 proven. 12 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-02 23:51:06,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:06,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 68 transitions. [2023-12-02 23:51:06,071 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2023-12-02 23:51:06,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-02 23:51:06,072 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:06,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:06,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 23:51:06,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:06,247 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 33 proven. 17 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-02 23:51:06,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:06,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 41 states and 72 transitions. [2023-12-02 23:51:06,489 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 72 transitions. [2023-12-02 23:51:06,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 23:51:06,490 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:06,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:06,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 23:51:06,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:06,593 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 23:51:06,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:06,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 42 states and 73 transitions. [2023-12-02 23:51:06,704 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 73 transitions. [2023-12-02 23:51:06,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 23:51:06,705 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:06,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:06,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 23:51:06,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:06,834 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 23:51:07,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:07,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 45 states and 79 transitions. [2023-12-02 23:51:07,086 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 79 transitions. [2023-12-02 23:51:07,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 23:51:07,087 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:07,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:07,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:07,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:07,142 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-12-02 23:51:07,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:07,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 45 states and 78 transitions. [2023-12-02 23:51:07,199 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 78 transitions. [2023-12-02 23:51:07,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 23:51:07,200 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:07,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:07,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 23:51:07,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:07,377 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 37 proven. 34 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-12-02 23:51:07,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:07,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 46 states and 80 transitions. [2023-12-02 23:51:07,710 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 80 transitions. [2023-12-02 23:51:07,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 23:51:07,711 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:07,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:07,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 23:51:07,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:07,867 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 39 proven. 40 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-12-02 23:51:08,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:08,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 47 states and 84 transitions. [2023-12-02 23:51:08,126 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 84 transitions. [2023-12-02 23:51:08,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 23:51:08,127 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:08,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:08,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:08,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:08,174 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 59 proven. 7 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2023-12-02 23:51:08,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:08,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 48 states and 85 transitions. [2023-12-02 23:51:08,282 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2023-12-02 23:51:08,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 23:51:08,283 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:08,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:08,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 23:51:08,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:08,425 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 24 proven. 38 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-02 23:51:08,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:08,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 51 states and 91 transitions. [2023-12-02 23:51:08,762 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 91 transitions. [2023-12-02 23:51:08,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 23:51:08,763 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:08,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:08,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:08,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:08,827 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 23:51:08,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:08,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 51 states and 90 transitions. [2023-12-02 23:51:08,897 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 90 transitions. [2023-12-02 23:51:08,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 23:51:08,898 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:08,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:08,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-02 23:51:08,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:09,109 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 43 proven. 61 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-02 23:51:09,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:09,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 52 states and 92 transitions. [2023-12-02 23:51:09,571 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 92 transitions. [2023-12-02 23:51:09,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 23:51:09,572 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:09,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:09,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 23:51:09,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:09,768 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 45 proven. 68 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-02 23:51:10,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:10,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 53 states and 96 transitions. [2023-12-02 23:51:10,113 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 96 transitions. [2023-12-02 23:51:10,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 23:51:10,114 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:10,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:10,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:10,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:10,167 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 77 proven. 7 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2023-12-02 23:51:10,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:10,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 54 states and 97 transitions. [2023-12-02 23:51:10,276 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 97 transitions. [2023-12-02 23:51:10,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 23:51:10,277 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:10,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:10,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 23:51:10,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:10,445 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 30 proven. 60 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 23:51:10,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:10,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 57 states and 103 transitions. [2023-12-02 23:51:10,790 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 103 transitions. [2023-12-02 23:51:10,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 23:51:10,791 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:10,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:10,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:10,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:10,844 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 78 proven. 7 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2023-12-02 23:51:10,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:10,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 57 states and 102 transitions. [2023-12-02 23:51:10,906 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 102 transitions. [2023-12-02 23:51:10,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 23:51:10,907 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:10,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:10,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-02 23:51:10,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:11,122 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 49 proven. 93 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-02 23:51:11,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:11,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 58 states and 104 transitions. [2023-12-02 23:51:11,596 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 104 transitions. [2023-12-02 23:51:11,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 23:51:11,597 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:11,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:11,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-02 23:51:11,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:11,810 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 51 proven. 101 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 23:51:12,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:12,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 59 states and 108 transitions. [2023-12-02 23:51:12,191 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 108 transitions. [2023-12-02 23:51:12,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-02 23:51:12,192 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:12,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:12,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:12,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:12,255 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 95 proven. 7 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2023-12-02 23:51:12,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:12,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 60 states and 109 transitions. [2023-12-02 23:51:12,411 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 109 transitions. [2023-12-02 23:51:12,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 23:51:12,412 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:12,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:12,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 23:51:12,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:12,626 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 36 proven. 87 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-02 23:51:13,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:13,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 63 states and 115 transitions. [2023-12-02 23:51:13,166 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 115 transitions. [2023-12-02 23:51:13,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-02 23:51:13,167 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:13,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:13,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:13,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:13,235 INFO L134 CoverageAnalysis]: Checked inductivity of 797 backedges. 95 proven. 7 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2023-12-02 23:51:13,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:13,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 63 states and 114 transitions. [2023-12-02 23:51:13,322 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 114 transitions. [2023-12-02 23:51:13,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-02 23:51:13,322 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:13,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:13,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 53 conjunts are in the unsatisfiable core [2023-12-02 23:51:13,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:13,582 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 55 proven. 130 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-12-02 23:51:14,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:14,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 64 states and 116 transitions. [2023-12-02 23:51:14,121 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 116 transitions. [2023-12-02 23:51:14,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-02 23:51:14,122 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:14,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:14,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-02 23:51:14,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:14,349 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 57 proven. 139 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-02 23:51:14,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:14,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 65 states and 120 transitions. [2023-12-02 23:51:14,769 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 120 transitions. [2023-12-02 23:51:14,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-02 23:51:14,770 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:14,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:14,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:14,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:14,839 INFO L134 CoverageAnalysis]: Checked inductivity of 987 backedges. 113 proven. 7 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2023-12-02 23:51:15,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:15,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 66 states and 121 transitions. [2023-12-02 23:51:15,001 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 121 transitions. [2023-12-02 23:51:15,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-02 23:51:15,002 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:15,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:15,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 23:51:15,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:15,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1001 backedges. 42 proven. 119 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-12-02 23:51:15,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:15,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 69 states and 127 transitions. [2023-12-02 23:51:15,702 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 127 transitions. [2023-12-02 23:51:15,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-02 23:51:15,703 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:15,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:15,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:15,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:15,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 112 proven. 7 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2023-12-02 23:51:15,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:15,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 69 states and 126 transitions. [2023-12-02 23:51:15,862 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 126 transitions. [2023-12-02 23:51:15,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-02 23:51:15,862 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:15,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:15,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 59 conjunts are in the unsatisfiable core [2023-12-02 23:51:15,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:16,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1094 backedges. 61 proven. 172 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-12-02 23:51:16,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:16,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 70 states and 128 transitions. [2023-12-02 23:51:16,822 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 128 transitions. [2023-12-02 23:51:16,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-02 23:51:16,822 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:16,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:16,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-02 23:51:16,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:17,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 63 proven. 182 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-12-02 23:51:17,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:17,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 71 states and 132 transitions. [2023-12-02 23:51:17,588 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 132 transitions. [2023-12-02 23:51:17,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-02 23:51:17,589 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:17,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:17,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:17,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:17,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 131 proven. 7 refuted. 0 times theorem prover too weak. 1154 trivial. 0 not checked. [2023-12-02 23:51:17,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:17,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 72 states and 133 transitions. [2023-12-02 23:51:17,836 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 133 transitions. [2023-12-02 23:51:17,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-02 23:51:17,837 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:17,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:17,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 23:51:17,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1308 backedges. 169 proven. 35 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-12-02 23:51:21,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:21,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 56 states and 89 transitions. [2023-12-02 23:51:21,991 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 89 transitions. [2023-12-02 23:51:21,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-02 23:51:21,992 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:21,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:22,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:51:22,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:22,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1390 backedges. 129 proven. 7 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2023-12-02 23:51:22,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:22,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 50 states and 82 transitions. [2023-12-02 23:51:22,707 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 82 transitions. [2023-12-02 23:51:22,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 23:51:22,707 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 43 iterations. [2023-12-02 23:51:22,715 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-02 23:51:23,645 INFO L560 CodeCheckObserver]: Invariant with dag size 63 [2023-12-02 23:51:23,653 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 23:51:23,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:51:23 ImpRootNode [2023-12-02 23:51:23,653 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 23:51:23,654 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 23:51:23,654 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 23:51:23,654 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 23:51:23,654 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:51:01" (3/4) ... [2023-12-02 23:51:23,656 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 23:51:23,658 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-02 23:51:23,661 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-02 23:51:23,661 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-02 23:51:23,661 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 23:51:23,661 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 23:51:23,738 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 23:51:23,738 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 23:51:23,738 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 23:51:23,739 INFO L158 Benchmark]: Toolchain (without parser) took 22792.17ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 108.0MB in the beginning and 167.0MB in the end (delta: -59.1MB). Peak memory consumption was 116.5MB. Max. memory is 16.1GB. [2023-12-02 23:51:23,740 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 144.7MB. Free memory was 113.5MB in the beginning and 113.4MB in the end (delta: 127.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:51:23,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.44ms. Allocated memory is still 144.7MB. Free memory was 107.5MB in the beginning and 97.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:51:23,741 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.54ms. Allocated memory is still 144.7MB. Free memory was 97.0MB in the beginning and 95.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:51:23,741 INFO L158 Benchmark]: Boogie Preprocessor took 20.48ms. Allocated memory is still 144.7MB. Free memory was 95.4MB in the beginning and 94.5MB in the end (delta: 878.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:51:23,742 INFO L158 Benchmark]: RCFGBuilder took 288.54ms. Allocated memory is still 144.7MB. Free memory was 94.5MB in the beginning and 82.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 23:51:23,742 INFO L158 Benchmark]: CodeCheck took 22125.90ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 82.4MB in the beginning and 58.3MB in the end (delta: 24.1MB). Peak memory consumption was 86.8MB. Max. memory is 16.1GB. [2023-12-02 23:51:23,742 INFO L158 Benchmark]: Witness Printer took 84.71ms. Allocated memory is still 205.5MB. Free memory was 58.3MB in the beginning and 167.0MB in the end (delta: -108.7MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2023-12-02 23:51:23,745 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.1s, OverallIterations: 43, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2171 SdHoareTripleChecker+Valid, 34.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1289 mSDsluCounter, 2268 SdHoareTripleChecker+Invalid, 29.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1732 mSDsCounter, 8741 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18050 IncrementalHoareTripleChecker+Invalid, 26791 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8741 mSolverCounterUnsat, 536 mSDtfsCounter, 18050 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20996 GetRequests, 20182 SyntacticMatches, 562 SemanticMatches, 252 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30839 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 3210 NumberOfCodeBlocks, 3210 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 3168 ConstructedInterpolants, 0 QuantifiedInterpolants, 8323 SizeOfPredicates, 89 NumberOfNonLiveVariables, 7602 ConjunctsInSsa, 972 ConjunctsInUnsatCore, 42 InterpolantComputations, 1 PerfectInterpolantSequences, 18148/19730 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: 14]: 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: 30]: Loop Invariant Derived loop invariant: (((((((((((((!(((3 == t) && (a == 1))) && !(((5 == t) && (2 == a)))) && !(((6 == a) && (t == 13)))) && !(((9 == t) && (a == 4)))) && !(((t == 15) && (7 == a)))) && !(((t == 11) && (5 == a)))) && !(((7 == t) && (3 == a)))) || ((16 == s) && (3 == a))) || ((s == 36) && (5 == a))) || ((a == 1) && (s == 4))) || ((9 == s) && (2 == a))) || ((49 == s) && (t == 13))) || ((7 == a) && (64 == s))) || ((s == 25) && (a == 4))) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 144.7MB. Free memory was 113.5MB in the beginning and 113.4MB in the end (delta: 127.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.44ms. Allocated memory is still 144.7MB. Free memory was 107.5MB in the beginning and 97.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.54ms. Allocated memory is still 144.7MB. Free memory was 97.0MB in the beginning and 95.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.48ms. Allocated memory is still 144.7MB. Free memory was 95.4MB in the beginning and 94.5MB in the end (delta: 878.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 288.54ms. Allocated memory is still 144.7MB. Free memory was 94.5MB in the beginning and 82.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 22125.90ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 82.4MB in the beginning and 58.3MB in the end (delta: 24.1MB). Peak memory consumption was 86.8MB. Max. memory is 16.1GB. * Witness Printer took 84.71ms. Allocated memory is still 205.5MB. Free memory was 58.3MB in the beginning and 167.0MB in the end (delta: -108.7MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-02 23:51:23,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b41541fb-dfb5-4ed8-a87a-e570df77ad1c/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 Writing output log to file Ultimate.log Result: TRUE