./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 21f79dea7aad8546a3e0176902289dccc4338c9a5ec0cb74e31e8a84f408fa52 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:54:20,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:54:20,822 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-24 22:54:20,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:54:20,828 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:54:20,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:54:20,852 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:54:20,852 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:54:20,853 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:54:20,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:54:20,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:54:20,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:54:20,856 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:54:20,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:54:20,857 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:54:20,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:54:20,858 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:54:20,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:54:20,859 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:54:20,859 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:54:20,860 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:54:20,866 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:54:20,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:54:20,868 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:54:20,869 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:54:20,869 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:54:20,870 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:54:20,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:54:20,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:54:20,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:54:20,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:54:20,873 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:54:20,873 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:54:20,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:54:20,874 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:54:20,874 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_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21f79dea7aad8546a3e0176902289dccc4338c9a5ec0cb74e31e8a84f408fa52 [2023-11-24 22:54:21,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:54:21,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:54:21,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:54:21,202 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:54:21,202 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:54:21,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2023-11-24 22:54:24,455 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:54:24,654 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:54:24,655 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2023-11-24 22:54:24,664 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/data/5d1e3e74d/eb29cbd1f67d4e96a7568d8171c81c5a/FLAGc14e61c6b [2023-11-24 22:54:24,681 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/data/5d1e3e74d/eb29cbd1f67d4e96a7568d8171c81c5a [2023-11-24 22:54:24,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:54:24,686 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:54:24,687 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:54:24,688 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:54:24,693 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:54:24,694 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:54:24" (1/1) ... [2023-11-24 22:54:24,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57718668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:24, skipping insertion in model container [2023-11-24 22:54:24,696 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:54:24" (1/1) ... [2023-11-24 22:54:24,732 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:54:24,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:54:24,977 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:54:25,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:54:25,038 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:54:25,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:25 WrapperNode [2023-11-24 22:54:25,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:54:25,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:54:25,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:54:25,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:54:25,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:25" (1/1) ... [2023-11-24 22:54:25,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:25" (1/1) ... [2023-11-24 22:54:25,092 INFO L138 Inliner]: procedures = 14, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2023-11-24 22:54:25,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:54:25,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:54:25,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:54:25,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:54:25,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:25" (1/1) ... [2023-11-24 22:54:25,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:25" (1/1) ... [2023-11-24 22:54:25,117 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:25" (1/1) ... [2023-11-24 22:54:25,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:25" (1/1) ... [2023-11-24 22:54:25,124 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:25" (1/1) ... [2023-11-24 22:54:25,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:25" (1/1) ... [2023-11-24 22:54:25,138 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:25" (1/1) ... [2023-11-24 22:54:25,140 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:25" (1/1) ... [2023-11-24 22:54:25,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:54:25,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:54:25,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:54:25,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:54:25,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:25" (1/1) ... [2023-11-24 22:54:25,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:54:25,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:54:25,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:54:25,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:54:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:54:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 22:54:25,235 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 22:54:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:54:25,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:54:25,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:54:25,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 22:54:25,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 22:54:25,308 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:54:25,311 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:54:25,494 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:54:25,549 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:54:25,550 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:54:25,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:54:25 BoogieIcfgContainer [2023-11-24 22:54:25,552 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:54:25,553 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:54:25,553 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:54:25,564 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:54:25,565 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:54:25" (1/1) ... [2023-11-24 22:54:25,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:54:25,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:25,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-11-24 22:54:25,638 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-11-24 22:54:25,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 22:54:25,643 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:25,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:25,992 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:26,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:26,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 23 states and 29 transitions. [2023-11-24 22:54:26,134 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-11-24 22:54:26,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 22:54:26,135 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:26,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:26,363 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:26,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:26,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 24 states and 30 transitions. [2023-11-24 22:54:26,392 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2023-11-24 22:54:26,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 22:54:26,394 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:26,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:26,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:54:26,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:26,670 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:26,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:26,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 31 states and 42 transitions. [2023-11-24 22:54:26,877 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2023-11-24 22:54:26,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 22:54:26,881 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:26,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:26,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:54:26,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:27,088 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:27,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:27,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 39 states and 55 transitions. [2023-11-24 22:54:27,540 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2023-11-24 22:54:27,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:54:27,541 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:27,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:27,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 22:54:27,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:27,790 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:28,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:28,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 35 states and 46 transitions. [2023-11-24 22:54:28,364 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2023-11-24 22:54:28,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-24 22:54:28,366 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:28,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:28,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 22:54:28,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:28,603 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:28,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:28,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 43 states and 58 transitions. [2023-11-24 22:54:28,853 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2023-11-24 22:54:28,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-24 22:54:28,855 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:28,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:28,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 22:54:28,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:29,216 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:29,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:29,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 51 states and 71 transitions. [2023-11-24 22:54:29,899 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 71 transitions. [2023-11-24 22:54:29,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-24 22:54:29,901 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:29,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:29,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 22:54:29,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:30,245 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:30,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:30,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 59 states and 83 transitions. [2023-11-24 22:54:30,902 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2023-11-24 22:54:30,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-24 22:54:30,904 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:30,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:30,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-24 22:54:30,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:31,170 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:31,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:31,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 67 states and 95 transitions. [2023-11-24 22:54:31,722 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 95 transitions. [2023-11-24 22:54:31,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-24 22:54:31,724 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:31,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:31,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 22:54:31,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:31,998 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:32,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 75 states and 107 transitions. [2023-11-24 22:54:32,589 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 107 transitions. [2023-11-24 22:54:32,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-24 22:54:32,591 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:32,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:32,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-24 22:54:32,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:33,186 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 21 proven. 168 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:33,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:33,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 83 states and 120 transitions. [2023-11-24 22:54:33,970 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 120 transitions. [2023-11-24 22:54:33,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-24 22:54:33,976 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:33,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:34,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-24 22:54:34,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:34,460 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:35,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:35,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 91 states and 132 transitions. [2023-11-24 22:54:35,314 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 132 transitions. [2023-11-24 22:54:35,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-24 22:54:35,322 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:35,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:35,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-24 22:54:35,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:35,716 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 315 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:36,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:36,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 99 states and 144 transitions. [2023-11-24 22:54:36,463 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 144 transitions. [2023-11-24 22:54:36,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-24 22:54:36,465 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:36,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:36,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-24 22:54:36,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:37,154 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 30 proven. 360 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:37,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:37,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 107 states and 157 transitions. [2023-11-24 22:54:37,965 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 157 transitions. [2023-11-24 22:54:37,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-24 22:54:37,975 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:37,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:38,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:54:38,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:38,396 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 33 proven. 440 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:38,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:38,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 115 states and 169 transitions. [2023-11-24 22:54:38,955 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 169 transitions. [2023-11-24 22:54:38,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-24 22:54:38,959 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:38,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:39,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-24 22:54:39,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:39,758 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 564 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:40,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:40,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 123 states and 181 transitions. [2023-11-24 22:54:40,989 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 181 transitions. [2023-11-24 22:54:40,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-24 22:54:40,991 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:40,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:41,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-24 22:54:41,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:41,508 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 663 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:42,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:42,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 131 states and 193 transitions. [2023-11-24 22:54:42,466 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 193 transitions. [2023-11-24 22:54:42,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-24 22:54:42,468 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:42,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:42,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-24 22:54:42,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:42,946 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 0 proven. 770 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:44,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:44,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 139 states and 205 transitions. [2023-11-24 22:54:44,022 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 205 transitions. [2023-11-24 22:54:44,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-24 22:54:44,024 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:44,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:44,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-24 22:54:44,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:44,605 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 0 proven. 885 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:45,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:45,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 147 states and 217 transitions. [2023-11-24 22:54:45,614 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 217 transitions. [2023-11-24 22:54:45,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-24 22:54:45,616 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:45,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:45,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-24 22:54:45,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:46,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 48 proven. 960 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:48,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:48,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 155 states and 230 transitions. [2023-11-24 22:54:48,172 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 230 transitions. [2023-11-24 22:54:48,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-24 22:54:48,174 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:48,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:48,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-24 22:54:48,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:49,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 0 proven. 1139 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:50,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:50,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 163 states and 242 transitions. [2023-11-24 22:54:50,233 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 242 transitions. [2023-11-24 22:54:50,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-24 22:54:50,235 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:50,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:50,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-24 22:54:50,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:50,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1290 backedges. 0 proven. 1278 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:52,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:52,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 171 states and 254 transitions. [2023-11-24 22:54:52,002 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 254 transitions. [2023-11-24 22:54:52,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-24 22:54:52,004 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:52,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:52,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-24 22:54:52,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:52,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 0 proven. 1425 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:53,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:53,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 179 states and 266 transitions. [2023-11-24 22:54:53,860 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 266 transitions. [2023-11-24 22:54:53,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-24 22:54:53,862 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:53,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:54,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-24 22:54:54,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:55,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1592 backedges. 60 proven. 1520 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:54:56,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:56,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 187 states and 279 transitions. [2023-11-24 22:54:56,549 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 279 transitions. [2023-11-24 22:54:56,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-24 22:54:56,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:56,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:56,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-24 22:54:56,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 1723 proven. 20 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:55:00,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:55:00,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 181 states and 270 transitions. [2023-11-24 22:55:00,510 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 270 transitions. [2023-11-24 22:55:00,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:55:00,511 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 26 iterations. [2023-11-24 22:55:00,521 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-24 22:55:00,790 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:55:00,795 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:55:00,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:55:00 ImpRootNode [2023-11-24 22:55:00,796 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:55:00,796 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:55:00,797 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:55:00,797 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:55:00,797 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:54:25" (3/4) ... [2023-11-24 22:55:00,799 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:55:00,803 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-24 22:55:00,803 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-24 22:55:00,808 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-24 22:55:00,808 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-24 22:55:00,809 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-24 22:55:00,809 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:55:00,809 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:55:00,923 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:55:00,923 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:55:00,923 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:55:00,924 INFO L158 Benchmark]: Toolchain (without parser) took 36238.85ms. Allocated memory was 155.2MB in the beginning and 293.6MB in the end (delta: 138.4MB). Free memory was 109.4MB in the beginning and 200.6MB in the end (delta: -91.2MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2023-11-24 22:55:00,925 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:55:00,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.72ms. Allocated memory is still 155.2MB. Free memory was 109.4MB in the beginning and 98.4MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:55:00,925 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.37ms. Allocated memory is still 155.2MB. Free memory was 98.4MB in the beginning and 96.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:55:00,929 INFO L158 Benchmark]: Boogie Preprocessor took 54.69ms. Allocated memory is still 155.2MB. Free memory was 96.8MB in the beginning and 95.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:55:00,934 INFO L158 Benchmark]: RCFGBuilder took 403.18ms. Allocated memory is still 155.2MB. Free memory was 95.7MB in the beginning and 82.2MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:55:00,934 INFO L158 Benchmark]: CodeCheck took 35243.00ms. Allocated memory was 155.2MB in the beginning and 293.6MB in the end (delta: 138.4MB). Free memory was 82.2MB in the beginning and 204.8MB in the end (delta: -122.7MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2023-11-24 22:55:00,935 INFO L158 Benchmark]: Witness Printer took 127.12ms. Allocated memory is still 293.6MB. Free memory was 204.8MB in the beginning and 200.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:55:00,937 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 3 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 34.9s, OverallIterations: 26, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3529 SdHoareTripleChecker+Valid, 21.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2728 mSDsluCounter, 4638 SdHoareTripleChecker+Invalid, 17.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2204 mSDsCounter, 3463 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10312 IncrementalHoareTripleChecker+Invalid, 13775 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3463 mSolverCounterUnsat, 2434 mSDtfsCounter, 10312 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19363 GetRequests, 17051 SyntacticMatches, 1982 SemanticMatches, 330 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73019 ImplicationChecksByTransitivity, 25.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 13.5s InterpolantComputationTime, 2294 NumberOfCodeBlocks, 2294 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 2269 ConstructedInterpolants, 0 QuantifiedInterpolants, 6567 SizeOfPredicates, 476 NumberOfNonLiveVariables, 5839 ConjunctsInSsa, 528 ConjunctsInUnsatCore, 25 InterpolantComputations, 4 PerfectInterpolantSequences, 2238/13327 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: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.72ms. Allocated memory is still 155.2MB. Free memory was 109.4MB in the beginning and 98.4MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.37ms. Allocated memory is still 155.2MB. Free memory was 98.4MB in the beginning and 96.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.69ms. Allocated memory is still 155.2MB. Free memory was 96.8MB in the beginning and 95.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 403.18ms. Allocated memory is still 155.2MB. Free memory was 95.7MB in the beginning and 82.2MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 35243.00ms. Allocated memory was 155.2MB in the beginning and 293.6MB in the end (delta: 138.4MB). Free memory was 82.2MB in the beginning and 204.8MB in the end (delta: -122.7MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * Witness Printer took 127.12ms. Allocated memory is still 293.6MB. Free memory was 204.8MB in the beginning and 200.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 22:55:00,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de8d1be-cb55-416a-a837-01c1e6ca2694/bin/ukojak-verify-afCqCEvfdi/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