./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c --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_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 715908359373978289cc76ce2f00faf49f4d4a3c6ddae64771646fc969bea981 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:52:53,733 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:52:53,844 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-24 22:52:53,856 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:52:53,857 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:52:53,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:52:53,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:52:53,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:52:53,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:52:53,913 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:52:53,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:52:53,916 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:52:53,916 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:52:53,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:52:53,919 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:52:53,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:52:53,920 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:52:53,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:52:53,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:52:53,921 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:52:53,921 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:52:53,922 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:52:53,922 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:52:53,923 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:52:53,923 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:52:53,923 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:52:53,924 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:52:53,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:52:53,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:52:53,925 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:52:53,926 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:52:53,927 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:52:53,927 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:52:53,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:52:53,927 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:52:53,927 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_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 715908359373978289cc76ce2f00faf49f4d4a3c6ddae64771646fc969bea981 [2023-11-24 22:52:54,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:52:54,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:52:54,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:52:54,263 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:52:54,264 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:52:54,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c [2023-11-24 22:52:57,383 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:52:57,581 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:52:57,582 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/sv-benchmarks/c/recursive-simple/id_i15_o15-1.c [2023-11-24 22:52:57,589 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/data/738d73359/c3e282a0b8e34263b2d51fe48a905595/FLAGb64910483 [2023-11-24 22:52:57,606 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/data/738d73359/c3e282a0b8e34263b2d51fe48a905595 [2023-11-24 22:52:57,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:52:57,610 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:52:57,612 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:52:57,613 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:52:57,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:52:57,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bec9745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57, skipping insertion in model container [2023-11-24 22:52:57,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,642 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:52:57,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:52:57,821 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:52:57,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:52:57,854 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:52:57,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57 WrapperNode [2023-11-24 22:52:57,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:52:57,857 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:52:57,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:52:57,857 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:52:57,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,874 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,894 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2023-11-24 22:52:57,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:52:57,896 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:52:57,896 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:52:57,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:52:57,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,909 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,914 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,925 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:52:57,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:52:57,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:52:57,931 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:52:57,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:52:57,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:52:57,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:52:57,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:52:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:52:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:52:58,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:52:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:52:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure id [2023-11-24 22:52:58,022 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2023-11-24 22:52:58,115 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:52:58,136 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:52:58,261 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:52:58,296 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:52:58,296 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:52:58,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:52:58 BoogieIcfgContainer [2023-11-24 22:52:58,298 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:52:58,299 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:52:58,299 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:52:58,311 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:52:58,311 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:52:58" (1/1) ... [2023-11-24 22:52:58,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:52:58,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:58,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2023-11-24 22:52:58,386 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2023-11-24 22:52:58,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:52:58,391 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:58,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:58,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:52:58,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:58,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 23 transitions. [2023-11-24 22:52:58,787 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-11-24 22:52:58,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:52:58,788 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:58,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:58,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:52:58,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:58,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 24 transitions. [2023-11-24 22:52:58,868 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-11-24 22:52:58,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 22:52:58,869 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:58,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:58,991 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:52:59,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:59,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 30 transitions. [2023-11-24 22:52:59,145 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-11-24 22:52:59,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:52:59,145 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:59,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:52:59,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:59,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 30 states and 34 transitions. [2023-11-24 22:52:59,549 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2023-11-24 22:52:59,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 22:52:59,550 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:59,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:59,674 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:52:59,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:59,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 35 states and 40 transitions. [2023-11-24 22:52:59,872 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2023-11-24 22:52:59,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 22:52:59,872 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:59,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:59,987 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:00,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:00,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 30 states and 33 transitions. [2023-11-24 22:53:00,027 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-11-24 22:53:00,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 22:53:00,028 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:00,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:00,195 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:00,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:00,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 35 states and 39 transitions. [2023-11-24 22:53:00,399 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2023-11-24 22:53:00,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 22:53:00,400 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:00,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:00,558 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:00,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 40 states and 45 transitions. [2023-11-24 22:53:00,810 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2023-11-24 22:53:00,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-24 22:53:00,811 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:00,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:01,036 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:01,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:01,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 45 states and 51 transitions. [2023-11-24 22:53:01,264 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2023-11-24 22:53:01,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-24 22:53:01,266 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:01,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:01,505 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:01,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:01,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 50 states and 57 transitions. [2023-11-24 22:53:01,767 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2023-11-24 22:53:01,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-24 22:53:01,768 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:01,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:01,963 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:02,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:02,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 55 states and 63 transitions. [2023-11-24 22:53:02,239 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2023-11-24 22:53:02,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-24 22:53:02,240 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:02,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:02,478 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:02,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:02,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 60 states and 69 transitions. [2023-11-24 22:53:02,772 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2023-11-24 22:53:02,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-24 22:53:02,773 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:02,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:03,074 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 207 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:03,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:03,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 65 states and 75 transitions. [2023-11-24 22:53:03,425 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2023-11-24 22:53:03,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-24 22:53:03,431 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:03,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:03,746 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:04,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:04,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 70 states and 81 transitions. [2023-11-24 22:53:04,093 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2023-11-24 22:53:04,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-24 22:53:04,093 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:04,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:04,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:04,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 75 states and 87 transitions. [2023-11-24 22:53:04,799 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2023-11-24 22:53:04,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-24 22:53:04,800 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:04,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:05,145 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:05,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:05,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 80 states and 93 transitions. [2023-11-24 22:53:05,556 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2023-11-24 22:53:05,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-24 22:53:05,557 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:05,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:05,933 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:06,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:06,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 85 states and 99 transitions. [2023-11-24 22:53:06,365 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 99 transitions. [2023-11-24 22:53:06,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-24 22:53:06,367 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:06,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:06,759 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:07,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:07,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 90 states and 105 transitions. [2023-11-24 22:53:07,214 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2023-11-24 22:53:07,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-24 22:53:07,216 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:07,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:07,678 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:08,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:08,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 88 states and 102 transitions. [2023-11-24 22:53:08,200 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 102 transitions. [2023-11-24 22:53:08,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-24 22:53:08,201 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:08,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:08,403 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:08,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:08,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 92 states and 121 transitions. [2023-11-24 22:53:08,689 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 121 transitions. [2023-11-24 22:53:08,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-24 22:53:08,690 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:08,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:08,743 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:08,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:08,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 93 states and 121 transitions. [2023-11-24 22:53:08,780 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 121 transitions. [2023-11-24 22:53:08,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-24 22:53:08,781 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:08,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:08,900 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2023-11-24 22:53:09,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:09,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 92 states and 120 transitions. [2023-11-24 22:53:09,181 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 120 transitions. [2023-11-24 22:53:09,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-24 22:53:09,182 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:09,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:09,430 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:10,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:10,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 97 states and 139 transitions. [2023-11-24 22:53:10,205 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 139 transitions. [2023-11-24 22:53:10,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-24 22:53:10,206 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:10,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:10,459 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:11,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:11,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 102 states and 156 transitions. [2023-11-24 22:53:11,101 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 156 transitions. [2023-11-24 22:53:11,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-24 22:53:11,103 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:11,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:11,371 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:12,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:12,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 107 states and 172 transitions. [2023-11-24 22:53:12,036 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 172 transitions. [2023-11-24 22:53:12,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-24 22:53:12,038 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:12,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:12,322 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:12,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 112 states and 187 transitions. [2023-11-24 22:53:12,973 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 187 transitions. [2023-11-24 22:53:12,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-24 22:53:12,974 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:12,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:13,341 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:14,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:14,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 117 states and 201 transitions. [2023-11-24 22:53:14,033 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 201 transitions. [2023-11-24 22:53:14,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-24 22:53:14,035 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:14,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:14,421 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:15,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:15,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 122 states and 214 transitions. [2023-11-24 22:53:15,149 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 214 transitions. [2023-11-24 22:53:15,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-24 22:53:15,151 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:15,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:15,579 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:16,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:16,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 127 states and 226 transitions. [2023-11-24 22:53:16,301 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 226 transitions. [2023-11-24 22:53:16,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-24 22:53:16,304 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:16,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:16,763 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:17,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:17,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 132 states and 237 transitions. [2023-11-24 22:53:17,457 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 237 transitions. [2023-11-24 22:53:17,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-24 22:53:17,460 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:17,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:17,904 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:18,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:18,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 137 states and 247 transitions. [2023-11-24 22:53:18,649 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 247 transitions. [2023-11-24 22:53:18,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-24 22:53:18,652 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:18,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:19,147 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:19,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:19,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 142 states and 256 transitions. [2023-11-24 22:53:19,920 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 256 transitions. [2023-11-24 22:53:19,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-24 22:53:19,924 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:19,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:20,438 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:21,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:21,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 147 states and 264 transitions. [2023-11-24 22:53:21,441 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 264 transitions. [2023-11-24 22:53:21,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-24 22:53:21,449 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:21,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:21,964 INFO L134 CoverageAnalysis]: Checked inductivity of 945 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:22,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:22,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 152 states and 271 transitions. [2023-11-24 22:53:22,740 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 271 transitions. [2023-11-24 22:53:22,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-24 22:53:22,743 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:22,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:23,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:24,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:24,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 157 states and 277 transitions. [2023-11-24 22:53:24,122 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 277 transitions. [2023-11-24 22:53:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-24 22:53:24,126 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:24,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:24,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-24 22:53:25,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:25,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 158 states and 278 transitions. [2023-11-24 22:53:25,760 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 278 transitions. [2023-11-24 22:53:25,762 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:53:25,763 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 37 iterations. [2023-11-24 22:53:25,786 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-24 22:53:26,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:53:26 ImpRootNode [2023-11-24 22:53:26,240 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:53:26,241 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:53:26,241 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:53:26,241 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:53:26,242 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:52:58" (3/4) ... [2023-11-24 22:53:26,245 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:53:26,254 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2023-11-24 22:53:26,262 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-24 22:53:26,264 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-24 22:53:26,265 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 22:53:26,265 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:53:26,389 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:53:26,389 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:53:26,389 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:53:26,394 INFO L158 Benchmark]: Toolchain (without parser) took 28779.63ms. Allocated memory was 130.0MB in the beginning and 394.3MB in the end (delta: 264.2MB). Free memory was 92.3MB in the beginning and 326.5MB in the end (delta: -234.2MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2023-11-24 22:53:26,398 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:53:26,399 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.56ms. Allocated memory is still 130.0MB. Free memory was 91.8MB in the beginning and 81.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:53:26,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.63ms. Allocated memory is still 130.0MB. Free memory was 81.8MB in the beginning and 80.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:53:26,399 INFO L158 Benchmark]: Boogie Preprocessor took 32.12ms. Allocated memory is still 130.0MB. Free memory was 80.3MB in the beginning and 79.7MB in the end (delta: 624.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:53:26,400 INFO L158 Benchmark]: RCFGBuilder took 368.20ms. Allocated memory is still 130.0MB. Free memory was 79.2MB in the beginning and 94.7MB in the end (delta: -15.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 22:53:26,400 INFO L158 Benchmark]: CodeCheck took 27941.23ms. Allocated memory was 130.0MB in the beginning and 394.3MB in the end (delta: 264.2MB). Free memory was 94.7MB in the beginning and 330.7MB in the end (delta: -236.0MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2023-11-24 22:53:26,402 INFO L158 Benchmark]: Witness Printer took 148.47ms. Allocated memory is still 394.3MB. Free memory was 330.7MB in the beginning and 326.5MB in the end (delta: 4.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:53:26,404 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, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 27.4s, OverallIterations: 37, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3611 SdHoareTripleChecker+Valid, 32.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3327 mSDsluCounter, 2516 SdHoareTripleChecker+Invalid, 26.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 454 mSDsCounter, 7468 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20131 IncrementalHoareTripleChecker+Invalid, 27599 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7468 mSolverCounterUnsat, 2062 mSDtfsCounter, 20131 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29522 GetRequests, 28300 SyntacticMatches, 962 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28302 ImplicationChecksByTransitivity, 16.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 2669 NumberOfCodeBlocks, 2669 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 2633 ConstructedInterpolants, 0 QuantifiedInterpolants, 5233 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 36 InterpolantComputations, 5 PerfectInterpolantSequences, 9443/15416 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: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.56ms. Allocated memory is still 130.0MB. Free memory was 91.8MB in the beginning and 81.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.63ms. Allocated memory is still 130.0MB. Free memory was 81.8MB in the beginning and 80.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.12ms. Allocated memory is still 130.0MB. Free memory was 80.3MB in the beginning and 79.7MB in the end (delta: 624.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 368.20ms. Allocated memory is still 130.0MB. Free memory was 79.2MB in the beginning and 94.7MB in the end (delta: -15.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * CodeCheck took 27941.23ms. Allocated memory was 130.0MB in the beginning and 394.3MB in the end (delta: 264.2MB). Free memory was 94.7MB in the beginning and 330.7MB in the end (delta: -236.0MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. * Witness Printer took 148.47ms. Allocated memory is still 394.3MB. Free memory was 330.7MB in the beginning and 326.5MB in the end (delta: 4.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 22:53:26,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51c4476-185c-44ff-b155-1724c4fcdc27/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE