./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/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_7fef6fb6-a933-4481-a6be-d28b3f5cc107/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/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_7fef6fb6-a933-4481-a6be-d28b3f5cc107/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 e46fdb43c1704e8aa9295c108b22e9521ffebb273e9060ca31abf40569948ab2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:45:44,918 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:45:45,000 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-12-03 00:45:45,005 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:45:45,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:45:45,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:45:45,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:45:45,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:45:45,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:45:45,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:45:45,031 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:45:45,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:45:45,032 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 00:45:45,032 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:45:45,033 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 00:45:45,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:45:45,034 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:45:45,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:45:45,035 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:45:45,035 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 00:45:45,036 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 00:45:45,036 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 00:45:45,037 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:45:45,037 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:45:45,037 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:45:45,038 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:45:45,038 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:45:45,039 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:45:45,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:45:45,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:45:45,040 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:45:45,040 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:45:45,040 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:45:45,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:45:45,041 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:45:45,041 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_7fef6fb6-a933-4481-a6be-d28b3f5cc107/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e46fdb43c1704e8aa9295c108b22e9521ffebb273e9060ca31abf40569948ab2 [2023-12-03 00:45:45,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:45:45,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:45:45,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:45:45,310 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:45:45,310 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:45:45,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound5.i [2023-12-03 00:45:48,033 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:45:48,186 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:45:48,186 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound5.i [2023-12-03 00:45:48,194 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/bin/ukojak-verify-Qdu7aM0XO9/data/46da6ac4b/f9c3b7a888374743988a36622da50ae2/FLAG616a5013a [2023-12-03 00:45:48,591 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/bin/ukojak-verify-Qdu7aM0XO9/data/46da6ac4b/f9c3b7a888374743988a36622da50ae2 [2023-12-03 00:45:48,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:45:48,595 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:45:48,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:45:48,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:45:48,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:45:48,600 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:45:48" (1/1) ... [2023-12-03 00:45:48,601 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@212848cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:45:48, skipping insertion in model container [2023-12-03 00:45:48,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:45:48" (1/1) ... [2023-12-03 00:45:48,620 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:45:48,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:45:48,799 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:45:48,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:45:48,829 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:45:48,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:45:48 WrapperNode [2023-12-03 00:45:48,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:45:48,831 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:45:48,831 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:45:48,831 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:45:48,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:45:48" (1/1) ... [2023-12-03 00:45:48,846 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:45:48" (1/1) ... [2023-12-03 00:45:48,865 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2023-12-03 00:45:48,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:45:48,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:45:48,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:45:48,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:45:48,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:45:48" (1/1) ... [2023-12-03 00:45:48,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:45:48" (1/1) ... [2023-12-03 00:45:48,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:45:48" (1/1) ... [2023-12-03 00:45:48,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:45:48" (1/1) ... [2023-12-03 00:45:48,880 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:45:48" (1/1) ... [2023-12-03 00:45:48,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:45:48" (1/1) ... [2023-12-03 00:45:48,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:45:48" (1/1) ... [2023-12-03 00:45:48,886 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:45:48" (1/1) ... [2023-12-03 00:45:48,887 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:45:48,888 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:45:48,888 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:45:48,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:45:48,889 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:45:48" (1/1) ... [2023-12-03 00:45:48,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:45:48,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:45:48,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:45:48,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:45:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:45:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:45:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:45:48,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:45:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 00:45:48,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 00:45:49,021 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:45:49,022 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:45:49,184 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:45:49,232 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:45:49,232 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-03 00:45:49,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:45:49 BoogieIcfgContainer [2023-12-03 00:45:49,234 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:45:49,235 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:45:49,235 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:45:49,243 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:45:49,243 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:45:49" (1/1) ... [2023-12-03 00:45:49,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:45:49,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:49,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-12-03 00:45:49,299 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-12-03 00:45:49,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 00:45:49,300 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:49,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:49,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:49,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:49,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2023-12-03 00:45:49,499 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-12-03 00:45:49,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 00:45:49,499 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:49,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:49,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:49,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:49,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 24 states and 30 transitions. [2023-12-03 00:45:49,558 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2023-12-03 00:45:49,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 00:45:49,562 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:49,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:49,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:49,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:49,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2023-12-03 00:45:49,624 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-12-03 00:45:49,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 00:45:49,624 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:49,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:49,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:49,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:49,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 28 states and 37 transitions. [2023-12-03 00:45:49,835 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2023-12-03 00:45:49,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 00:45:49,836 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:49,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:49,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:50,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:50,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2023-12-03 00:45:50,002 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2023-12-03 00:45:50,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 00:45:50,003 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:50,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:50,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:50,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:50,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 34 states and 47 transitions. [2023-12-03 00:45:50,348 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2023-12-03 00:45:50,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 00:45:50,348 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:50,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:50,419 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:50,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:50,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 50 transitions. [2023-12-03 00:45:50,533 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2023-12-03 00:45:50,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 00:45:50,535 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:50,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:50,584 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:50,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:50,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2023-12-03 00:45:50,609 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2023-12-03 00:45:50,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 00:45:50,610 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:50,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:50,701 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:50,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:50,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 40 states and 54 transitions. [2023-12-03 00:45:50,826 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2023-12-03 00:45:50,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 00:45:50,827 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:50,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:50,929 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:51,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:51,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 44 states and 62 transitions. [2023-12-03 00:45:51,205 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2023-12-03 00:45:51,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 00:45:51,206 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:51,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:51,282 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:51,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:51,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 47 states and 65 transitions. [2023-12-03 00:45:51,392 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 65 transitions. [2023-12-03 00:45:51,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 00:45:51,393 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:51,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:51,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 00:45:51,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:45:51,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:51,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:51,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 53 states and 74 transitions. [2023-12-03 00:45:51,669 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2023-12-03 00:45:51,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 00:45:51,671 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:51,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:51,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 00:45:51,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:45:51,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:52,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:52,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 61 states and 89 transitions. [2023-12-03 00:45:52,240 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 89 transitions. [2023-12-03 00:45:52,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 00:45:52,242 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:52,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:52,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:52,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 62 states and 93 transitions. [2023-12-03 00:45:52,327 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 93 transitions. [2023-12-03 00:45:52,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 00:45:52,328 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:52,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:52,470 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:52,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:52,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 62 states and 90 transitions. [2023-12-03 00:45:52,603 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2023-12-03 00:45:52,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 00:45:52,617 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:52,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:52,749 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:53,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:53,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 63 states and 93 transitions. [2023-12-03 00:45:53,036 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 93 transitions. [2023-12-03 00:45:53,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 00:45:53,037 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:53,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:53,117 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:53,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 66 states and 96 transitions. [2023-12-03 00:45:53,229 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 96 transitions. [2023-12-03 00:45:53,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 00:45:53,230 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:53,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:53,283 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:53,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:53,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 67 states and 101 transitions. [2023-12-03 00:45:53,321 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 101 transitions. [2023-12-03 00:45:53,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-03 00:45:53,322 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:53,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:53,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 00:45:53,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:45:53,413 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:53,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:53,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 72 states and 109 transitions. [2023-12-03 00:45:53,607 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 109 transitions. [2023-12-03 00:45:53,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 00:45:53,608 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:53,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:53,816 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:53,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:53,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 72 states and 105 transitions. [2023-12-03 00:45:53,961 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 105 transitions. [2023-12-03 00:45:53,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 00:45:53,961 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:53,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:54,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:54,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 73 states and 108 transitions. [2023-12-03 00:45:54,407 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 108 transitions. [2023-12-03 00:45:54,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 00:45:54,408 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:54,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:54,504 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:54,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:54,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 76 states and 111 transitions. [2023-12-03 00:45:54,633 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 111 transitions. [2023-12-03 00:45:54,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 00:45:54,634 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:54,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:54,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 00:45:54,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:45:54,728 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:55,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:55,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 79 states and 116 transitions. [2023-12-03 00:45:55,013 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 116 transitions. [2023-12-03 00:45:55,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 00:45:55,013 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:55,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:55,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:55,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 80 states and 116 transitions. [2023-12-03 00:45:55,121 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 116 transitions. [2023-12-03 00:45:55,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 00:45:55,121 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:55,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:55,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 00:45:55,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:45:55,217 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:55,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:55,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 85 states and 124 transitions. [2023-12-03 00:45:55,359 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2023-12-03 00:45:55,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 00:45:55,359 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:55,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:55,650 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 34 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:55,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:55,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 79 states and 110 transitions. [2023-12-03 00:45:55,824 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 110 transitions. [2023-12-03 00:45:55,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-03 00:45:55,825 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:55,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:55,912 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:56,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:56,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 79 states and 109 transitions. [2023-12-03 00:45:56,177 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 109 transitions. [2023-12-03 00:45:56,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-03 00:45:56,177 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:56,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:56,306 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:56,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:56,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 78 states and 108 transitions. [2023-12-03 00:45:56,452 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 108 transitions. [2023-12-03 00:45:56,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-03 00:45:56,453 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:56,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:56,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 00:45:56,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:45:56,562 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:56,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:56,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 81 states and 113 transitions. [2023-12-03 00:45:56,893 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 113 transitions. [2023-12-03 00:45:56,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-03 00:45:56,894 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:56,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:57,039 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-03 00:45:57,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:57,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 74 states and 97 transitions. [2023-12-03 00:45:57,249 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 97 transitions. [2023-12-03 00:45:57,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-03 00:45:57,250 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:57,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:57,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 00:45:57,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:45:57,673 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:58,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:58,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 82 states and 111 transitions. [2023-12-03 00:45:58,225 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 111 transitions. [2023-12-03 00:45:58,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-03 00:45:58,226 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:58,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:58,345 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:58,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:58,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 82 states and 109 transitions. [2023-12-03 00:45:58,545 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 109 transitions. [2023-12-03 00:45:58,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-03 00:45:58,545 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:45:58,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:45:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:45:58,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 00:45:58,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:45:58,913 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:45:59,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:45:59,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 76 states and 100 transitions. [2023-12-03 00:45:59,135 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 100 transitions. [2023-12-03 00:45:59,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 00:45:59,135 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 34 iterations. [2023-12-03 00:45:59,143 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-12-03 00:45:59,253 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 00:45:59,256 INFO L560 CodeCheckObserver]: Invariant with dag size 24 [2023-12-03 00:45:59,260 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 00:45:59,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:45:59 ImpRootNode [2023-12-03 00:45:59,260 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:45:59,261 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:45:59,261 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:45:59,261 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:45:59,261 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:45:49" (3/4) ... [2023-12-03 00:45:59,263 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 00:45:59,267 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-03 00:45:59,270 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-03 00:45:59,271 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-03 00:45:59,271 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 00:45:59,271 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 00:45:59,355 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 00:45:59,356 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 00:45:59,356 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:45:59,357 INFO L158 Benchmark]: Toolchain (without parser) took 10762.17ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 117.1MB in the beginning and 97.9MB in the end (delta: 19.2MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2023-12-03 00:45:59,357 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 111.1MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:45:59,358 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.19ms. Allocated memory is still 153.1MB. Free memory was 116.7MB in the beginning and 106.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 00:45:59,358 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.43ms. Allocated memory is still 153.1MB. Free memory was 106.3MB in the beginning and 105.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:45:59,359 INFO L158 Benchmark]: Boogie Preprocessor took 21.96ms. Allocated memory is still 153.1MB. Free memory was 105.0MB in the beginning and 103.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:45:59,359 INFO L158 Benchmark]: RCFGBuilder took 345.67ms. Allocated memory is still 153.1MB. Free memory was 103.8MB in the beginning and 117.5MB in the end (delta: -13.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 00:45:59,360 INFO L158 Benchmark]: CodeCheck took 10025.31ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 117.5MB in the beginning and 103.0MB in the end (delta: 14.4MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-12-03 00:45:59,360 INFO L158 Benchmark]: Witness Printer took 95.65ms. Allocated memory is still 184.5MB. Free memory was 103.0MB in the beginning and 97.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 00:45:59,362 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 9.9s, OverallIterations: 34, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2951 SdHoareTripleChecker+Valid, 10.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2393 mSDsluCounter, 2198 SdHoareTripleChecker+Invalid, 8.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1418 mSDsCounter, 2065 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7533 IncrementalHoareTripleChecker+Invalid, 9598 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2065 mSolverCounterUnsat, 780 mSDtfsCounter, 7533 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5762 GetRequests, 5108 SyntacticMatches, 486 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19730 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 670 NumberOfCodeBlocks, 670 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 637 ConstructedInterpolants, 0 QuantifiedInterpolants, 1935 SizeOfPredicates, 64 NumberOfNonLiveVariables, 710 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 33 InterpolantComputations, 7 PerfectInterpolantSequences, 184/743 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: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((counter <= 1) && (1 <= counter)) || ((counter <= 3) && (2 < counter))) || ((counter <= 5) && (4 < counter))) || (counter == 0)) || ((1 < counter) && (counter <= 2))) || ((counter <= 4) && (3 < counter))) - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 111.1MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.19ms. Allocated memory is still 153.1MB. Free memory was 116.7MB in the beginning and 106.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.43ms. Allocated memory is still 153.1MB. Free memory was 106.3MB in the beginning and 105.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.96ms. Allocated memory is still 153.1MB. Free memory was 105.0MB in the beginning and 103.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 345.67ms. Allocated memory is still 153.1MB. Free memory was 103.8MB in the beginning and 117.5MB in the end (delta: -13.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 10025.31ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 117.5MB in the beginning and 103.0MB in the end (delta: 14.4MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Witness Printer took 95.65ms. Allocated memory is still 184.5MB. Free memory was 103.0MB in the beginning and 97.9MB 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! [2023-12-03 00:45:59,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fef6fb6-a933-4481-a6be-d28b3f5cc107/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