./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_9357e883-74d8-4720-a71c-55b889e762a8/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/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_9357e883-74d8-4720-a71c-55b889e762a8/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/bin/ukojak-verify-Qdu7aM0XO9 --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 [2023-12-02 23:33:04,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:33:05,009 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-12-02 23:33:05,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:33:05,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:33:05,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:33:05,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:33:05,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:33:05,036 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:33:05,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:33:05,037 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:33:05,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:33:05,038 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:33:05,039 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:33:05,039 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:33:05,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:33:05,040 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:33:05,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:33:05,041 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:33:05,042 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 23:33:05,042 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 23:33:05,043 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:33:05,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:33:05,044 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:33:05,044 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:33:05,044 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:33:05,045 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:33:05,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:33:05,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:33:05,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:33:05,046 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:33:05,047 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:33:05,047 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:33:05,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:33:05,047 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:33:05,047 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_9357e883-74d8-4720-a71c-55b889e762a8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21f79dea7aad8546a3e0176902289dccc4338c9a5ec0cb74e31e8a84f408fa52 [2023-12-02 23:33:05,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:33:05,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:33:05,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:33:05,299 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:33:05,300 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:33:05,301 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2023-12-02 23:33:08,018 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:33:08,196 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:33:08,197 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2023-12-02 23:33:08,205 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/bin/ukojak-verify-Qdu7aM0XO9/data/a43772946/58f24ac928ec4ea28254876ada4d77b7/FLAG79b89aaf1 [2023-12-02 23:33:08,219 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/bin/ukojak-verify-Qdu7aM0XO9/data/a43772946/58f24ac928ec4ea28254876ada4d77b7 [2023-12-02 23:33:08,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:33:08,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:33:08,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:33:08,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:33:08,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:33:08,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:33:08" (1/1) ... [2023-12-02 23:33:08,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14623e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:08, skipping insertion in model container [2023-12-02 23:33:08,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:33:08" (1/1) ... [2023-12-02 23:33:08,254 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:33:08,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:33:08,437 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:33:08,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:33:08,472 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:33:08,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:08 WrapperNode [2023-12-02 23:33:08,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:33:08,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:33:08,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:33:08,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:33:08,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:08" (1/1) ... [2023-12-02 23:33:08,489 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:08" (1/1) ... [2023-12-02 23:33:08,510 INFO L138 Inliner]: procedures = 14, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2023-12-02 23:33:08,511 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:33:08,511 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:33:08,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:33:08,512 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:33:08,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:08" (1/1) ... [2023-12-02 23:33:08,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:08" (1/1) ... [2023-12-02 23:33:08,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:08" (1/1) ... [2023-12-02 23:33:08,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:08" (1/1) ... [2023-12-02 23:33:08,528 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:08" (1/1) ... [2023-12-02 23:33:08,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:08" (1/1) ... [2023-12-02 23:33:08,533 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:08" (1/1) ... [2023-12-02 23:33:08,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:08" (1/1) ... [2023-12-02 23:33:08,537 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:33:08,538 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:33:08,538 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:33:08,538 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:33:08,539 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:08" (1/1) ... [2023-12-02 23:33:08,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:33:08,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:33:08,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:33:08,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:33:08,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:33:08,603 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 23:33:08,604 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 23:33:08,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:33:08,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:33:08,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:33:08,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 23:33:08,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 23:33:08,673 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:33:08,675 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:33:08,812 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:33:08,850 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:33:08,851 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:33:08,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:33:08 BoogieIcfgContainer [2023-12-02 23:33:08,852 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:33:08,853 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:33:08,853 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:33:08,862 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:33:08,862 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:33:08" (1/1) ... [2023-12-02 23:33:08,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:33:08,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:08,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-12-02 23:33:08,921 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-12-02 23:33:08,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:33:08,926 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:08,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:09,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:09,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 23 states and 29 transitions. [2023-12-02 23:33:09,293 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-12-02 23:33:09,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 23:33:09,294 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:09,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:09,388 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:09,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:09,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 24 states and 30 transitions. [2023-12-02 23:33:09,411 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2023-12-02 23:33:09,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:33:09,412 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:09,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:09,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:33:09,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:09,610 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:09,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:09,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 31 states and 42 transitions. [2023-12-02 23:33:09,759 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2023-12-02 23:33:09,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 23:33:09,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:09,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:09,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:33:09,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:09,926 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:10,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:10,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 39 states and 55 transitions. [2023-12-02 23:33:10,313 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2023-12-02 23:33:10,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 23:33:10,314 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:10,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:10,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:33:10,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:10,524 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:10,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:10,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 35 states and 46 transitions. [2023-12-02 23:33:10,953 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2023-12-02 23:33:10,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 23:33:10,954 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:10,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:10,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:33:10,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:11,115 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:11,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:11,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 43 states and 58 transitions. [2023-12-02 23:33:11,334 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2023-12-02 23:33:11,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 23:33:11,336 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:11,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:11,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 23:33:11,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:11,642 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:12,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:12,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 51 states and 71 transitions. [2023-12-02 23:33:12,167 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 71 transitions. [2023-12-02 23:33:12,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 23:33:12,169 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:12,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:12,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:33:12,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:12,444 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:12,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:12,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 59 states and 83 transitions. [2023-12-02 23:33:12,910 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2023-12-02 23:33:12,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 23:33:12,912 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:12,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:12,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 23:33:12,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:13,138 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:13,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:13,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 67 states and 95 transitions. [2023-12-02 23:33:13,564 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 95 transitions. [2023-12-02 23:33:13,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 23:33:13,566 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:13,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:13,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 23:33:13,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:13,816 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:14,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:14,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 75 states and 107 transitions. [2023-12-02 23:33:14,275 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 107 transitions. [2023-12-02 23:33:14,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 23:33:14,277 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:14,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:14,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 23:33:14,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:14,759 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 21 proven. 168 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:15,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:15,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 83 states and 120 transitions. [2023-12-02 23:33:15,313 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 120 transitions. [2023-12-02 23:33:15,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 23:33:15,315 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:15,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:15,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 23:33:15,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:15,723 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:16,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:16,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 91 states and 132 transitions. [2023-12-02 23:33:16,313 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 132 transitions. [2023-12-02 23:33:16,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 23:33:16,315 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:16,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:16,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 23:33:16,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:16,593 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 315 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:17,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:17,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 99 states and 144 transitions. [2023-12-02 23:33:17,073 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 144 transitions. [2023-12-02 23:33:17,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-02 23:33:17,074 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:17,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:17,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 23:33:17,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:17,495 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 30 proven. 360 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:18,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:18,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 107 states and 157 transitions. [2023-12-02 23:33:18,039 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 157 transitions. [2023-12-02 23:33:18,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 23:33:18,041 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:18,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:18,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 23:33:18,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:18,329 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 33 proven. 440 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:18,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:18,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 115 states and 169 transitions. [2023-12-02 23:33:18,663 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 169 transitions. [2023-12-02 23:33:18,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-02 23:33:18,665 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:18,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:18,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 23:33:18,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:19,204 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 564 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:20,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:20,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 123 states and 181 transitions. [2023-12-02 23:33:20,004 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 181 transitions. [2023-12-02 23:33:20,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-02 23:33:20,006 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:20,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:20,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 23:33:20,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:20,327 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 663 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:20,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:20,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 131 states and 193 transitions. [2023-12-02 23:33:20,903 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 193 transitions. [2023-12-02 23:33:20,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-02 23:33:20,904 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:20,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:20,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 23:33:21,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:21,244 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 0 proven. 770 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:21,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:21,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 139 states and 205 transitions. [2023-12-02 23:33:21,852 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 205 transitions. [2023-12-02 23:33:21,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-02 23:33:21,853 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:21,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:21,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 23:33:21,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 0 proven. 885 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:22,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:22,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 147 states and 217 transitions. [2023-12-02 23:33:22,933 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 217 transitions. [2023-12-02 23:33:22,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-02 23:33:22,934 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:22,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:23,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 23:33:23,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:23,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 48 proven. 960 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:24,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:24,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 155 states and 230 transitions. [2023-12-02 23:33:24,867 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 230 transitions. [2023-12-02 23:33:24,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-02 23:33:24,868 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:24,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:24,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 23:33:24,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:25,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 0 proven. 1139 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:26,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:26,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 163 states and 242 transitions. [2023-12-02 23:33:26,336 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 242 transitions. [2023-12-02 23:33:26,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-02 23:33:26,337 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:26,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:26,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 23:33:26,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:26,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1290 backedges. 0 proven. 1278 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:27,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:27,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 171 states and 254 transitions. [2023-12-02 23:33:27,652 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 254 transitions. [2023-12-02 23:33:27,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-02 23:33:27,654 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:27,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:27,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-02 23:33:27,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:28,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 0 proven. 1425 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:28,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:28,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 179 states and 266 transitions. [2023-12-02 23:33:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 266 transitions. [2023-12-02 23:33:28,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-02 23:33:28,950 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:28,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:29,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-02 23:33:29,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:29,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1592 backedges. 60 proven. 1520 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:30,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:30,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 187 states and 279 transitions. [2023-12-02 23:33:30,931 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 279 transitions. [2023-12-02 23:33:30,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-02 23:33:30,932 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:33:30,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:33:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:33:31,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-02 23:33:31,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:33:33,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 1723 proven. 20 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 23:33:33,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:33:33,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 181 states and 270 transitions. [2023-12-02 23:33:33,791 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 270 transitions. [2023-12-02 23:33:33,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 23:33:33,793 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 26 iterations. [2023-12-02 23:33:33,801 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-12-02 23:33:33,997 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 23:33:34,001 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 23:33:34,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:33:34 ImpRootNode [2023-12-02 23:33:34,002 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 23:33:34,002 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 23:33:34,003 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 23:33:34,003 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 23:33:34,003 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:33:08" (3/4) ... [2023-12-02 23:33:34,005 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 23:33:34,008 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-02 23:33:34,008 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-02 23:33:34,011 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-12-02 23:33:34,011 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-12-02 23:33:34,012 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-02 23:33:34,012 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 23:33:34,012 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 23:33:34,089 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 23:33:34,089 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 23:33:34,089 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 23:33:34,090 INFO L158 Benchmark]: Toolchain (without parser) took 25867.36ms. Allocated memory was 176.2MB in the beginning and 262.1MB in the end (delta: 86.0MB). Free memory was 134.4MB in the beginning and 110.4MB in the end (delta: 24.0MB). Peak memory consumption was 111.3MB. Max. memory is 16.1GB. [2023-12-02 23:33:34,090 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:33:34,091 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.30ms. Allocated memory is still 176.2MB. Free memory was 134.4MB in the beginning and 123.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:33:34,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.47ms. Allocated memory is still 176.2MB. Free memory was 123.8MB in the beginning and 122.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:33:34,091 INFO L158 Benchmark]: Boogie Preprocessor took 25.41ms. Allocated memory is still 176.2MB. Free memory was 122.3MB in the beginning and 121.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:33:34,092 INFO L158 Benchmark]: RCFGBuilder took 314.73ms. Allocated memory is still 176.2MB. Free memory was 121.1MB in the beginning and 107.2MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 23:33:34,092 INFO L158 Benchmark]: CodeCheck took 25149.05ms. Allocated memory was 176.2MB in the beginning and 262.1MB in the end (delta: 86.0MB). Free memory was 107.2MB in the beginning and 115.6MB in the end (delta: -8.4MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. [2023-12-02 23:33:34,093 INFO L158 Benchmark]: Witness Printer took 87.11ms. Allocated memory is still 262.1MB. Free memory was 115.6MB in the beginning and 110.4MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 23:33:34,095 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: 24.9s, 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, 14.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2728 mSDsluCounter, 4638 SdHoareTripleChecker+Invalid, 12.4s 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, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19363 GetRequests, 17051 SyntacticMatches, 1982 SemanticMatches, 330 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73019 ImplicationChecksByTransitivity, 17.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 9.8s 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 0.11ms. Allocated memory is still 176.2MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.30ms. Allocated memory is still 176.2MB. Free memory was 134.4MB in the beginning and 123.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.47ms. Allocated memory is still 176.2MB. Free memory was 123.8MB in the beginning and 122.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.41ms. Allocated memory is still 176.2MB. Free memory was 122.3MB in the beginning and 121.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 314.73ms. Allocated memory is still 176.2MB. Free memory was 121.1MB in the beginning and 107.2MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 25149.05ms. Allocated memory was 176.2MB in the beginning and 262.1MB in the end (delta: 86.0MB). Free memory was 107.2MB in the beginning and 115.6MB in the end (delta: -8.4MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. * Witness Printer took 87.11ms. Allocated memory is still 262.1MB. Free memory was 115.6MB in the beginning and 110.4MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-02 23:33:34,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9357e883-74d8-4720-a71c-55b889e762a8/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