./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 173419c809fa8cb7fa094fdfc7b5765802a9a2fdebfe9d0a53cd745fd0c573d2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:06:36,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:06:36,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:06:36,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:06:36,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:06:36,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:06:36,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:06:36,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:06:36,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:06:36,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:06:36,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:06:36,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:06:36,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:06:36,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:06:36,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:06:36,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:06:36,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:06:36,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:06:36,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:06:36,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:06:36,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:06:36,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:06:36,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:06:36,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:06:36,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:06:36,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:06:36,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:06:36,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:06:36,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:06:36,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:06:36,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:06:36,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:06:36,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:06:36,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:06:36,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:06:36,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:06:36,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:06:36,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:06:36,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:06:36,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:06:36,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:06:36,930 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:06:36,982 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:06:36,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:06:36,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:06:36,984 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:06:36,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:06:36,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:06:36,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:06:36,991 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:06:36,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:06:36,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:06:36,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:06:36,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:06:36,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:06:36,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:06:36,994 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:06:36,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:06:36,994 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:06:36,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:06:36,995 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:06:36,995 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:06:36,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:06:36,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:06:36,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:06:36,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:06:36,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:06:36,996 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:06:36,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:06:36,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:06:36,997 INFO L138 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_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 173419c809fa8cb7fa094fdfc7b5765802a9a2fdebfe9d0a53cd745fd0c573d2 [2021-11-22 23:06:37,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:06:37,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:06:37,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:06:37,317 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:06:37,319 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:06:37,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound5.c [2021-11-22 23:06:37,406 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/data/1d4214042/239c94981bba4159acd217f053c5eb6f/FLAGcb88d76c6 [2021-11-22 23:06:37,914 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:06:37,915 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound5.c [2021-11-22 23:06:37,922 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/data/1d4214042/239c94981bba4159acd217f053c5eb6f/FLAGcb88d76c6 [2021-11-22 23:06:38,264 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/data/1d4214042/239c94981bba4159acd217f053c5eb6f [2021-11-22 23:06:38,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:06:38,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:06:38,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:06:38,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:06:38,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:06:38,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:06:38" (1/1) ... [2021-11-22 23:06:38,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ef5c26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:38, skipping insertion in model container [2021-11-22 23:06:38,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:06:38" (1/1) ... [2021-11-22 23:06:38,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:06:38,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:06:38,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound5.c[588,601] [2021-11-22 23:06:38,494 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:06:38,503 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:06:38,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound5.c[588,601] [2021-11-22 23:06:38,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:06:38,541 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:06:38,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:38 WrapperNode [2021-11-22 23:06:38,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:06:38,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:06:38,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:06:38,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:06:38,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:38" (1/1) ... [2021-11-22 23:06:38,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:38" (1/1) ... [2021-11-22 23:06:38,579 INFO L137 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 49 [2021-11-22 23:06:38,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:06:38,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:06:38,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:06:38,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:06:38,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:38" (1/1) ... [2021-11-22 23:06:38,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:38" (1/1) ... [2021-11-22 23:06:38,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:38" (1/1) ... [2021-11-22 23:06:38,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:38" (1/1) ... [2021-11-22 23:06:38,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:38" (1/1) ... [2021-11-22 23:06:38,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:38" (1/1) ... [2021-11-22 23:06:38,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:38" (1/1) ... [2021-11-22 23:06:38,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:06:38,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:06:38,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:06:38,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:06:38,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:06:38" (1/1) ... [2021-11-22 23:06:38,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:06:38,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:06:38,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:06:38,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:06:38,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:06:38,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:06:38,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:06:38,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:06:38,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-22 23:06:38,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-22 23:06:38,749 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:06:38,751 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:06:38,881 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:06:38,896 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:06:38,897 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 23:06:38,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:38 BoogieIcfgContainer [2021-11-22 23:06:38,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:06:38,900 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:06:38,900 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:06:38,914 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:06:38,914 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:38" (1/1) ... [2021-11-22 23:06:38,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:38,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2021-11-22 23:06:38,975 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2021-11-22 23:06:38,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 23:06:38,976 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:38,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:39,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:06:39,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:39,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2021-11-22 23:06:39,131 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2021-11-22 23:06:39,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 23:06:39,132 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:39,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:39,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:06:39,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:39,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2021-11-22 23:06:39,286 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2021-11-22 23:06:39,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 23:06:39,286 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:39,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:39,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:06:39,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:39,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 30 states and 53 transitions. [2021-11-22 23:06:39,786 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 53 transitions. [2021-11-22 23:06:39,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 23:06:39,790 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:39,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:39,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:06:39,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:06:40,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:40,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 34 states and 61 transitions. [2021-11-22 23:06:40,397 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2021-11-22 23:06:40,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-22 23:06:40,398 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:40,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:40,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:06:40,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:40,572 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:06:41,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:41,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 39 states and 72 transitions. [2021-11-22 23:06:41,212 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 72 transitions. [2021-11-22 23:06:41,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 23:06:41,213 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:41,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:41,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:06:41,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:41,390 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 23:06:41,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:41,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 41 states and 77 transitions. [2021-11-22 23:06:41,648 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 77 transitions. [2021-11-22 23:06:41,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 23:06:41,649 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:41,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:41,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:06:41,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:41,810 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-22 23:06:41,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:41,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 42 states and 80 transitions. [2021-11-22 23:06:41,900 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 80 transitions. [2021-11-22 23:06:41,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-22 23:06:41,902 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:41,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:41,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:06:41,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:42,105 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-22 23:06:42,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:42,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 43 states and 79 transitions. [2021-11-22 23:06:42,641 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 79 transitions. [2021-11-22 23:06:42,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-22 23:06:42,643 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:42,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:42,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 23:06:42,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:42,867 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-22 23:06:44,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:44,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 55 states and 129 transitions. [2021-11-22 23:06:44,343 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 129 transitions. [2021-11-22 23:06:44,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-22 23:06:44,345 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:44,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:44,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:06:44,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:44,611 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-22 23:06:45,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:45,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 58 states and 134 transitions. [2021-11-22 23:06:45,266 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 134 transitions. [2021-11-22 23:06:45,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-22 23:06:45,267 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:45,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:45,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:06:45,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:45,465 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-22 23:06:46,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:46,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 60 states and 144 transitions. [2021-11-22 23:06:46,131 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 144 transitions. [2021-11-22 23:06:46,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-22 23:06:46,133 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:46,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:46,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 23:06:46,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-22 23:06:47,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:47,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 64 states and 156 transitions. [2021-11-22 23:06:47,599 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 156 transitions. [2021-11-22 23:06:47,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-22 23:06:47,601 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:47,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:47,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 23:06:47,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:47,919 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-22 23:06:48,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:48,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 64 states and 155 transitions. [2021-11-22 23:06:48,356 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 155 transitions. [2021-11-22 23:06:48,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 23:06:48,358 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:48,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:48,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:06:48,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:49,193 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-22 23:06:51,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:51,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 75 states and 189 transitions. [2021-11-22 23:06:51,491 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 189 transitions. [2021-11-22 23:06:51,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-22 23:06:51,493 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:51,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:51,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 23:06:51,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:51,719 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-22 23:06:52,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:52,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 78 states and 203 transitions. [2021-11-22 23:06:52,959 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 203 transitions. [2021-11-22 23:06:52,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-22 23:06:52,960 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:52,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:52,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 23:06:52,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:53,119 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-22 23:06:53,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:53,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 78 states and 202 transitions. [2021-11-22 23:06:53,666 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 202 transitions. [2021-11-22 23:06:53,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-22 23:06:53,667 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:53,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:53,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-22 23:06:53,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:53,883 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 33 proven. 4 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-22 23:06:54,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:54,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 80 states and 212 transitions. [2021-11-22 23:06:54,115 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 212 transitions. [2021-11-22 23:06:54,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-22 23:06:54,116 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:54,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:54,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:06:54,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:54,481 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 23:06:55,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:55,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 81 states and 216 transitions. [2021-11-22 23:06:55,169 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 216 transitions. [2021-11-22 23:06:55,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 23:06:55,175 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:55,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:55,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:06:55,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:55,547 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 29 proven. 13 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-22 23:06:55,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:55,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 82 states and 218 transitions. [2021-11-22 23:06:55,688 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 218 transitions. [2021-11-22 23:06:55,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-22 23:06:55,689 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:55,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:55,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:06:55,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:55,945 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-22 23:06:56,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:56,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 83 states and 224 transitions. [2021-11-22 23:06:56,344 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 224 transitions. [2021-11-22 23:06:56,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-22 23:06:56,345 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:56,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:56,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:06:56,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:56,954 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 28 proven. 19 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-22 23:06:58,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:58,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 85 states and 230 transitions. [2021-11-22 23:06:58,792 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 230 transitions. [2021-11-22 23:06:58,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-22 23:06:58,794 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:58,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:58,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:06:58,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:58,955 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 39 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-22 23:06:59,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:06:59,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 85 states and 228 transitions. [2021-11-22 23:06:59,271 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 228 transitions. [2021-11-22 23:06:59,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-22 23:06:59,273 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:06:59,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:59,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:06:59,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:59,621 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 20 proven. 112 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-22 23:07:02,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:02,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 97 states and 319 transitions. [2021-11-22 23:07:02,227 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 319 transitions. [2021-11-22 23:07:02,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-22 23:07:02,229 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:02,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:02,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:07:02,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:02,540 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 20 proven. 14 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-22 23:07:03,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:03,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 100 states and 324 transitions. [2021-11-22 23:07:03,597 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 324 transitions. [2021-11-22 23:07:03,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-22 23:07:03,598 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:03,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:03,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:07:03,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:03,847 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 20 proven. 14 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-22 23:07:04,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:04,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 103 states and 328 transitions. [2021-11-22 23:07:04,821 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 328 transitions. [2021-11-22 23:07:04,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-22 23:07:04,823 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:04,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:04,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:07:04,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:05,004 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 20 proven. 112 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-22 23:07:05,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:05,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 103 states and 327 transitions. [2021-11-22 23:07:05,357 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 327 transitions. [2021-11-22 23:07:05,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-22 23:07:05,358 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:05,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:05,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:07:05,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:06,020 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-22 23:07:06,038 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 23:07:09,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:09,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 111 states and 368 transitions. [2021-11-22 23:07:09,077 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 368 transitions. [2021-11-22 23:07:09,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-22 23:07:09,079 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:09,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:09,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:07:09,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:09,474 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-22 23:07:09,489 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 23:07:10,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:10,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 112 states and 368 transitions. [2021-11-22 23:07:10,560 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 368 transitions. [2021-11-22 23:07:10,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-22 23:07:10,561 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:10,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:10,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:07:10,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:10,997 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 23:07:13,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:13,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 116 states and 386 transitions. [2021-11-22 23:07:13,171 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 386 transitions. [2021-11-22 23:07:13,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-22 23:07:13,173 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:13,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:13,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:07:13,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:13,522 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 23:07:14,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:14,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 118 states and 388 transitions. [2021-11-22 23:07:14,232 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 388 transitions. [2021-11-22 23:07:14,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-22 23:07:14,234 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:14,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:14,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:07:14,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:14,767 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 23:07:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:15,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 120 states and 390 transitions. [2021-11-22 23:07:15,846 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 390 transitions. [2021-11-22 23:07:15,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-22 23:07:15,848 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:15,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:15,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:07:15,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:16,638 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-22 23:07:18,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:18,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 123 states and 413 transitions. [2021-11-22 23:07:18,391 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 413 transitions. [2021-11-22 23:07:18,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-22 23:07:18,392 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:18,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:18,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-22 23:07:18,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:18,955 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-22 23:07:21,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:21,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 128 states and 436 transitions. [2021-11-22 23:07:21,575 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 436 transitions. [2021-11-22 23:07:21,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-22 23:07:21,576 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:21,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:21,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-22 23:07:21,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:22,002 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-22 23:07:22,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:22,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 130 states and 437 transitions. [2021-11-22 23:07:22,875 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 437 transitions. [2021-11-22 23:07:22,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-22 23:07:22,876 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:22,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:22,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-22 23:07:22,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:23,330 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-22 23:07:24,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:24,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 132 states and 438 transitions. [2021-11-22 23:07:24,500 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 438 transitions. [2021-11-22 23:07:24,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-22 23:07:24,501 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:24,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:24,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-22 23:07:24,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:25,005 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 26 proven. 8 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-22 23:07:27,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:27,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 136 states and 470 transitions. [2021-11-22 23:07:27,069 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 470 transitions. [2021-11-22 23:07:27,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-22 23:07:27,070 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:27,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:27,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-22 23:07:27,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:27,488 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 26 proven. 20 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-22 23:07:28,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:28,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 137 states and 476 transitions. [2021-11-22 23:07:28,837 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 476 transitions. [2021-11-22 23:07:28,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-22 23:07:28,838 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:28,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:28,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:07:28,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:29,029 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 55 proven. 13 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2021-11-22 23:07:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:30,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 138 states and 479 transitions. [2021-11-22 23:07:30,243 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 479 transitions. [2021-11-22 23:07:30,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-22 23:07:30,244 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:30,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:30,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:07:30,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:30,628 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 28 proven. 22 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-11-22 23:07:31,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:31,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 139 states and 488 transitions. [2021-11-22 23:07:31,490 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 488 transitions. [2021-11-22 23:07:31,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-22 23:07:31,491 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:31,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:31,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:07:31,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:31,679 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 69 proven. 13 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-11-22 23:07:32,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:32,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 139 states and 485 transitions. [2021-11-22 23:07:32,393 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 485 transitions. [2021-11-22 23:07:32,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-22 23:07:32,394 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:32,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:32,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:07:32,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:32,767 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 30 proven. 33 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-11-22 23:07:34,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:34,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 142 states and 489 transitions. [2021-11-22 23:07:34,144 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 489 transitions. [2021-11-22 23:07:34,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-22 23:07:34,145 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:34,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:34,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:07:34,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:34,612 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 330 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-22 23:07:38,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:38,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 154 states and 624 transitions. [2021-11-22 23:07:38,985 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 624 transitions. [2021-11-22 23:07:38,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-22 23:07:38,987 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:38,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:39,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:07:39,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:39,235 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 30 proven. 33 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-11-22 23:07:40,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:40,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 157 states and 628 transitions. [2021-11-22 23:07:40,844 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 628 transitions. [2021-11-22 23:07:40,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-22 23:07:40,846 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:40,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:40,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:07:40,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:41,055 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 330 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-22 23:07:41,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 157 states and 627 transitions. [2021-11-22 23:07:41,668 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 627 transitions. [2021-11-22 23:07:41,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-22 23:07:41,669 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:41,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:41,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:07:41,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:41,904 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 30 proven. 33 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-11-22 23:07:43,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:43,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 160 states and 632 transitions. [2021-11-22 23:07:43,558 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 632 transitions. [2021-11-22 23:07:43,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-22 23:07:43,559 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:43,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:43,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:07:43,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:43,773 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 330 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-22 23:07:44,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:44,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 160 states and 631 transitions. [2021-11-22 23:07:44,268 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 631 transitions. [2021-11-22 23:07:44,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-22 23:07:44,269 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:44,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:44,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-22 23:07:44,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:46,827 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 32 proven. 24 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-22 23:07:58,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:07:58,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 178 states and 716 transitions. [2021-11-22 23:07:58,163 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 716 transitions. [2021-11-22 23:07:58,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-22 23:07:58,164 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:07:58,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:58,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-22 23:07:58,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:00,726 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 32 proven. 24 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-22 23:08:08,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:08,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 184 states and 721 transitions. [2021-11-22 23:08:08,641 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 721 transitions. [2021-11-22 23:08:08,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-22 23:08:08,642 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:08,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:08,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-22 23:08:08,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:11,131 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 32 proven. 24 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-22 23:08:15,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:15,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 187 states and 724 transitions. [2021-11-22 23:08:15,658 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 724 transitions. [2021-11-22 23:08:15,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-22 23:08:15,659 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:15,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:15,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-22 23:08:15,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:16,602 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 32 proven. 36 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-22 23:08:23,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:23,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 191 states and 747 transitions. [2021-11-22 23:08:23,284 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 747 transitions. [2021-11-22 23:08:23,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-22 23:08:23,285 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:23,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:23,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-22 23:08:23,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:24,130 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 32 proven. 36 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-22 23:08:25,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:25,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 193 states and 749 transitions. [2021-11-22 23:08:25,562 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 749 transitions. [2021-11-22 23:08:25,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-22 23:08:25,563 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:25,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:25,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-22 23:08:25,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:26,164 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 32 proven. 36 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-22 23:08:29,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:29,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 195 states and 751 transitions. [2021-11-22 23:08:29,519 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 751 transitions. [2021-11-22 23:08:29,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-22 23:08:29,520 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:29,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:29,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-22 23:08:29,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:30,442 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 32 proven. 36 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-22 23:08:34,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:34,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 197 states and 753 transitions. [2021-11-22 23:08:34,144 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 753 transitions. [2021-11-22 23:08:34,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-22 23:08:34,146 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:34,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:34,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-22 23:08:34,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:35,393 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 34 proven. 24 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-22 23:08:39,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:39,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 200 states and 783 transitions. [2021-11-22 23:08:39,336 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 783 transitions. [2021-11-22 23:08:39,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-22 23:08:39,336 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:39,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:39,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:08:39,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:40,279 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 34 proven. 39 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-22 23:08:49,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:49,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 205 states and 814 transitions. [2021-11-22 23:08:49,263 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 814 transitions. [2021-11-22 23:08:49,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-22 23:08:49,264 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:49,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:49,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:08:49,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:50,101 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 34 proven. 39 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-22 23:08:53,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:53,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 207 states and 816 transitions. [2021-11-22 23:08:53,731 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 816 transitions. [2021-11-22 23:08:53,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-22 23:08:53,733 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:53,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:53,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:08:53,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:54,479 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 34 proven. 39 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-22 23:08:56,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:08:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 209 states and 818 transitions. [2021-11-22 23:08:56,262 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 818 transitions. [2021-11-22 23:08:56,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-22 23:08:56,263 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:08:56,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:56,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:08:56,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:57,057 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 34 proven. 39 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-22 23:09:01,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:01,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 211 states and 820 transitions. [2021-11-22 23:09:01,932 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 820 transitions. [2021-11-22 23:09:01,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-22 23:09:01,933 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:01,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:01,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-22 23:09:01,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:02,680 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 36 proven. 24 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-22 23:09:07,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:07,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 215 states and 854 transitions. [2021-11-22 23:09:07,335 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 854 transitions. [2021-11-22 23:09:07,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-22 23:09:07,336 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:07,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:07,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-22 23:09:07,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:08,313 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 36 proven. 42 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-22 23:09:11,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:11,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 216 states and 862 transitions. [2021-11-22 23:09:11,341 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 862 transitions. [2021-11-22 23:09:11,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-22 23:09:11,342 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:11,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:11,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:09:11,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:12,362 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 38 proven. 45 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-22 23:09:13,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:13,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 217 states and 874 transitions. [2021-11-22 23:09:13,950 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 874 transitions. [2021-11-22 23:09:13,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-22 23:09:13,951 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:13,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:13,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:09:13,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:14,165 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 99 proven. 13 refuted. 0 times theorem prover too weak. 736 trivial. 0 not checked. [2021-11-22 23:09:15,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:15,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 217 states and 870 transitions. [2021-11-22 23:09:15,626 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 870 transitions. [2021-11-22 23:09:15,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-22 23:09:15,628 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:15,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:15,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-22 23:09:15,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 40 proven. 60 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-22 23:09:20,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:20,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 220 states and 875 transitions. [2021-11-22 23:09:20,185 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 875 transitions. [2021-11-22 23:09:20,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-22 23:09:20,186 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:20,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:20,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-22 23:09:20,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:20,470 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 40 proven. 60 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-22 23:09:23,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:23,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 223 states and 879 transitions. [2021-11-22 23:09:23,593 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 879 transitions. [2021-11-22 23:09:23,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-22 23:09:23,595 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:23,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:23,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-22 23:09:23,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:23,887 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 40 proven. 60 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-22 23:09:27,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:27,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 226 states and 883 transitions. [2021-11-22 23:09:27,047 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 883 transitions. [2021-11-22 23:09:27,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-22 23:09:27,049 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:27,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:27,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:09:27,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:28,239 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 40 proven. 656 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-11-22 23:09:39,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:39,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 238 states and 1042 transitions. [2021-11-22 23:09:39,282 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 1042 transitions. [2021-11-22 23:09:39,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-22 23:09:39,284 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:39,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:39,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-22 23:09:39,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:39,648 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 40 proven. 60 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-22 23:09:43,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:43,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 241 states and 1046 transitions. [2021-11-22 23:09:43,755 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 1046 transitions. [2021-11-22 23:09:43,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-22 23:09:43,756 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:43,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:43,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:09:43,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:44,032 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 40 proven. 656 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-11-22 23:09:45,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:45,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 241 states and 1045 transitions. [2021-11-22 23:09:45,354 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 1045 transitions. [2021-11-22 23:09:45,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-22 23:09:45,355 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:45,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:45,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:09:45,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 40 proven. 656 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-11-22 23:09:47,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:47,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 241 states and 1044 transitions. [2021-11-22 23:09:47,157 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 1044 transitions. [2021-11-22 23:09:47,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-22 23:09:47,158 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:47,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:47,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:09:47,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:47,554 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 40 proven. 656 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-11-22 23:09:48,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:09:48,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 241 states and 1043 transitions. [2021-11-22 23:09:48,844 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 1043 transitions. [2021-11-22 23:09:48,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-22 23:09:48,845 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:09:48,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:48,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:09:48,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:51,310 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 42 proven. 48 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:10:05,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:05,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 249 states and 1114 transitions. [2021-11-22 23:10:05,155 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 1114 transitions. [2021-11-22 23:10:05,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-22 23:10:05,156 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:05,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:05,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:10:05,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:06,767 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 42 proven. 48 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:10:11,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:11,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 250 states and 1115 transitions. [2021-11-22 23:10:11,251 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 1115 transitions. [2021-11-22 23:10:11,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-22 23:10:11,253 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:11,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:11,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:10:11,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:11,829 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 42 proven. 48 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:10:13,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:13,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 251 states and 1116 transitions. [2021-11-22 23:10:13,601 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 1116 transitions. [2021-11-22 23:10:13,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-22 23:10:13,603 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:13,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:13,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:10:13,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:14,210 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 42 proven. 48 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:10:15,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:15,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 252 states and 1117 transitions. [2021-11-22 23:10:15,535 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 1117 transitions. [2021-11-22 23:10:15,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-22 23:10:15,537 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:15,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:15,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:10:15,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:17,144 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 42 proven. 48 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:10:20,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:20,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 252 states and 1116 transitions. [2021-11-22 23:10:20,033 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 1116 transitions. [2021-11-22 23:10:20,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-22 23:10:20,035 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:20,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:20,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:10:20,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:21,597 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 42 proven. 48 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:10:25,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:25,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 252 states and 1115 transitions. [2021-11-22 23:10:25,022 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 1115 transitions. [2021-11-22 23:10:25,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-22 23:10:25,023 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:25,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:25,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:10:25,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:26,779 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 42 proven. 64 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:10:34,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:34,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 256 states and 1142 transitions. [2021-11-22 23:10:34,823 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 1142 transitions. [2021-11-22 23:10:34,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-22 23:10:34,825 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:34,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:34,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:10:34,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:36,631 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 42 proven. 64 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:10:42,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:42,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 258 states and 1144 transitions. [2021-11-22 23:10:42,528 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 1144 transitions. [2021-11-22 23:10:42,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-22 23:10:42,529 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:42,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:42,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:10:42,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:43,766 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 42 proven. 64 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:10:46,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:46,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 260 states and 1146 transitions. [2021-11-22 23:10:46,466 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 1146 transitions. [2021-11-22 23:10:46,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-22 23:10:46,468 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:46,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:46,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:10:46,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:47,706 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 42 proven. 64 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:10:52,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:52,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 262 states and 1148 transitions. [2021-11-22 23:10:52,235 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 1148 transitions. [2021-11-22 23:10:52,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-22 23:10:52,236 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:52,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:52,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:10:52,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:53,565 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 42 proven. 64 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:10:57,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:10:57,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 264 states and 1150 transitions. [2021-11-22 23:10:57,953 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 1150 transitions. [2021-11-22 23:10:57,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-22 23:10:57,955 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:10:57,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:58,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:10:58,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:01,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1016 backedges. 44 proven. 48 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-22 23:11:09,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:11:09,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 267 states and 1187 transitions. [2021-11-22 23:11:09,962 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 1187 transitions. [2021-11-22 23:11:09,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-22 23:11:09,964 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:11:09,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:10,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-22 23:11:10,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:12,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 44 proven. 68 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-22 23:11:22,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:11:22,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 272 states and 1223 transitions. [2021-11-22 23:11:22,526 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 1223 transitions. [2021-11-22 23:11:22,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-22 23:11:22,528 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:11:22,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:22,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-22 23:11:22,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:23,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 44 proven. 68 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-22 23:11:29,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:11:29,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 274 states and 1224 transitions. [2021-11-22 23:11:29,332 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 1224 transitions. [2021-11-22 23:11:29,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-22 23:11:29,334 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:11:29,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:29,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-22 23:11:29,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:31,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 44 proven. 68 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-22 23:11:34,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:11:34,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 276 states and 1225 transitions. [2021-11-22 23:11:34,483 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 1225 transitions. [2021-11-22 23:11:34,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-22 23:11:34,484 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:11:34,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:34,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-22 23:11:34,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:35,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 44 proven. 68 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-22 23:11:39,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:11:39,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 278 states and 1226 transitions. [2021-11-22 23:11:39,687 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 1226 transitions. [2021-11-22 23:11:39,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-22 23:11:39,689 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:11:39,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:39,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-22 23:11:39,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:40,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 44 proven. 68 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-22 23:11:45,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:11:45,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 280 states and 1227 transitions. [2021-11-22 23:11:45,758 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 1227 transitions. [2021-11-22 23:11:45,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-22 23:11:45,759 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:11:45,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:45,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-22 23:11:45,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:47,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 46 proven. 48 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-22 23:11:55,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:11:55,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 284 states and 1269 transitions. [2021-11-22 23:11:55,812 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 1269 transitions. [2021-11-22 23:11:55,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-22 23:11:55,813 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:11:55,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:55,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-22 23:11:55,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:58,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 46 proven. 72 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-22 23:12:04,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:04,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 285 states and 1284 transitions. [2021-11-22 23:12:04,720 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 1284 transitions. [2021-11-22 23:12:04,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-22 23:12:04,721 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:04,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:04,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-22 23:12:04,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:06,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1228 backedges. 48 proven. 76 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-11-22 23:12:11,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:11,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 287 states and 1309 transitions. [2021-11-22 23:12:11,275 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 1309 transitions. [2021-11-22 23:12:11,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-22 23:12:11,276 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:11,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:11,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:12:11,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:11,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 129 proven. 13 refuted. 0 times theorem prover too weak. 1188 trivial. 0 not checked. [2021-11-22 23:12:14,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:12:14,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 287 states and 1304 transitions. [2021-11-22 23:12:14,311 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 1304 transitions. [2021-11-22 23:12:14,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-22 23:12:14,314 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:12:14,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:14,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 23:12:14,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:12:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 1140 proven. 5 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-11-22 23:12:37,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-22 23:13:06,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:06,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 317 states and 1555 transitions. [2021-11-22 23:13:06,164 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 1555 transitions. [2021-11-22 23:13:06,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-22 23:13:06,166 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:06,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:06,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-22 23:13:06,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:07,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 50 proven. 90 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-11-22 23:13:14,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:14,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 320 states and 1559 transitions. [2021-11-22 23:13:14,209 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 1559 transitions. [2021-11-22 23:13:14,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-22 23:13:14,211 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:14,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:14,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 23:13:14,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:14,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 1140 proven. 5 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-11-22 23:13:36,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:36,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 322 states and 1557 transitions. [2021-11-22 23:13:36,129 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 1557 transitions. [2021-11-22 23:13:36,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-22 23:13:36,131 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:36,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:36,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-22 23:13:36,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:36,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 1140 proven. 5 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-11-22 23:13:40,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:13:40,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 103 states and 484 transitions. [2021-11-22 23:13:40,688 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 484 transitions. [2021-11-22 23:13:40,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-22 23:13:40,689 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:13:40,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:13:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:13:40,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-22 23:13:40,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:13:44,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 52 proven. 80 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-22 23:14:10,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:14:10,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 105 states and 508 transitions. [2021-11-22 23:14:10,639 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 508 transitions. [2021-11-22 23:14:10,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-22 23:14:10,641 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:14:10,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:14:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:14:10,787 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:14:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:14:10,892 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 97 iterations. [2021-11-22 23:14:10,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.11 11:14:10 ImpRootNode [2021-11-22 23:14:10,974 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-22 23:14:10,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 23:14:10,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 23:14:10,975 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 23:14:10,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:38" (3/4) ... [2021-11-22 23:14:10,977 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 23:14:11,175 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-22 23:14:11,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 23:14:11,176 INFO L158 Benchmark]: Toolchain (without parser) took 452907.37ms. Allocated memory was 83.9MB in the beginning and 1.3GB in the end (delta: 1.3GB). Free memory was 49.7MB in the beginning and 674.8MB in the end (delta: -625.1MB). Peak memory consumption was 632.5MB. Max. memory is 16.1GB. [2021-11-22 23:14:11,176 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 56.2MB in the beginning and 56.2MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:14:11,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.71ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 49.5MB in the beginning and 76.2MB in the end (delta: -26.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 23:14:11,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.68ms. Allocated memory is still 100.7MB. Free memory was 76.2MB in the beginning and 74.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:14:11,184 INFO L158 Benchmark]: Boogie Preprocessor took 21.23ms. Allocated memory is still 100.7MB. Free memory was 74.7MB in the beginning and 73.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:14:11,185 INFO L158 Benchmark]: RCFGBuilder took 296.88ms. Allocated memory is still 100.7MB. Free memory was 73.6MB in the beginning and 63.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 23:14:11,186 INFO L158 Benchmark]: CodeCheck took 452074.35ms. Allocated memory was 100.7MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 63.0MB in the beginning and 682.2MB in the end (delta: -619.2MB). Peak memory consumption was 622.9MB. Max. memory is 16.1GB. [2021-11-22 23:14:11,186 INFO L158 Benchmark]: Witness Printer took 200.63ms. Allocated memory is still 1.3GB. Free memory was 681.2MB in the beginning and 674.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-22 23:14:11,189 INFO L339 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, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 452.0s, OverallIterations: 97, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 29064 SdHoareTripleChecker+Valid, 617.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5873 mSDsluCounter, 6068 SdHoareTripleChecker+Invalid, 546.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1380 mSDsCounter, 89528 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 259848 IncrementalHoareTripleChecker+Invalid, 349381 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89528 mSolverCounterUnsat, 4688 mSDtfsCounter, 259848 mSolverCounterSat, 3.3s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120565 GetRequests, 116259 SyntacticMatches, 3050 SemanticMatches, 1256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 988249 ImplicationChecksByTransitivity, 388.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.6s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 73.1s InterpolantComputationTime, 8731 NumberOfCodeBlocks, 8731 NumberOfCodeBlocksAsserted, 97 NumberOfCheckSat, 8483 ConstructedInterpolants, 0 QuantifiedInterpolants, 35400 SizeOfPredicates, 155 NumberOfNonLiveVariables, 20958 ConjunctsInSsa, 1844 ConjunctsInUnsatCore, 96 InterpolantComputations, 9 PerfectInterpolantSequences, 48368/54783 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 - CounterExampleResult [Line: 17]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L22] int counter = 0; [L24] short a; [L25] long long n, x, y, z; [L26] a = __VERIFIER_nondet_ushort() [L28] n = 0 [L29] x = 0 [L30] y = 1 [L31] z = 6 VAL [a=5, counter=0, n=0, x=0, y=1, z=6] [L33] EXPR counter++ VAL [a=5, counter=1, counter++=0, n=0, x=0, y=1, z=6] [L33] COND TRUE counter++<5 [L34] CALL __VERIFIER_assert(z == 6 * n + 6) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L34] RET __VERIFIER_assert(z == 6 * n + 6) VAL [a=5, counter=1, n=0, x=0, y=1, z=6] [L35] CALL __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L35] RET __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [a=5, counter=1, n=0, x=0, y=1, z=6] [L36] CALL __VERIFIER_assert(x == n * n * n) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L36] RET __VERIFIER_assert(x == n * n * n) VAL [a=5, counter=1, n=0, x=0, y=1, z=6] [L37] CALL __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L37] RET __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [a=5, counter=1, n=0, x=0, y=1, z=6] [L38] CALL __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L38] RET __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [a=5, counter=1, n=0, x=0, y=1, z=6] [L39] COND FALSE !(!(n <= a)) [L42] n = n + 1 [L43] x = x + y [L44] y = y + z [L45] z = z + 6 VAL [a=5, counter=1, n=1, x=1, y=7, z=12] [L33] EXPR counter++ VAL [a=5, counter=2, counter++=1, n=1, x=1, y=7, z=12] [L33] COND TRUE counter++<5 [L34] CALL __VERIFIER_assert(z == 6 * n + 6) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L34] RET __VERIFIER_assert(z == 6 * n + 6) VAL [a=5, counter=2, n=1, x=1, y=7, z=12] [L35] CALL __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L35] RET __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [a=5, counter=2, n=1, x=1, y=7, z=12] [L36] CALL __VERIFIER_assert(x == n * n * n) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L36] RET __VERIFIER_assert(x == n * n * n) VAL [a=5, counter=2, n=1, x=1, y=7, z=12] [L37] CALL __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L37] RET __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [a=5, counter=2, n=1, x=1, y=7, z=12] [L38] CALL __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L38] RET __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [a=5, counter=2, n=1, x=1, y=7, z=12] [L39] COND FALSE !(!(n <= a)) [L42] n = n + 1 [L43] x = x + y [L44] y = y + z [L45] z = z + 6 VAL [a=5, counter=2, n=2, x=8, y=19, z=18] [L33] EXPR counter++ VAL [a=5, counter=3, counter++=2, n=2, x=8, y=19, z=18] [L33] COND TRUE counter++<5 [L34] CALL __VERIFIER_assert(z == 6 * n + 6) VAL [\old(cond)=1, counter=3] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=3] [L34] RET __VERIFIER_assert(z == 6 * n + 6) VAL [a=5, counter=3, n=2, x=8, y=19, z=18] [L35] CALL __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [\old(cond)=1, counter=3] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=3] [L35] RET __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [a=5, counter=3, n=2, x=8, y=19, z=18] [L36] CALL __VERIFIER_assert(x == n * n * n) VAL [\old(cond)=1, counter=3] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=3] [L36] RET __VERIFIER_assert(x == n * n * n) VAL [a=5, counter=3, n=2, x=8, y=19, z=18] [L37] CALL __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [\old(cond)=1, counter=3] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=3] [L37] RET __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [a=5, counter=3, n=2, x=8, y=19, z=18] [L38] CALL __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [\old(cond)=1, counter=3] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=3] [L38] RET __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [a=5, counter=3, n=2, x=8, y=19, z=18] [L39] COND FALSE !(!(n <= a)) [L42] n = n + 1 [L43] x = x + y [L44] y = y + z [L45] z = z + 6 VAL [a=5, counter=3, n=3, x=27, y=37, z=24] [L33] EXPR counter++ VAL [a=5, counter=4, counter++=3, n=3, x=27, y=37, z=24] [L33] COND TRUE counter++<5 [L34] CALL __VERIFIER_assert(z == 6 * n + 6) VAL [\old(cond)=1, counter=4] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=4] [L34] RET __VERIFIER_assert(z == 6 * n + 6) VAL [a=5, counter=4, n=3, x=27, y=37, z=24] [L35] CALL __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [\old(cond)=1, counter=4] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=4] [L35] RET __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [a=5, counter=4, n=3, x=27, y=37, z=24] [L36] CALL __VERIFIER_assert(x == n * n * n) VAL [\old(cond)=1, counter=4] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=4] [L36] RET __VERIFIER_assert(x == n * n * n) VAL [a=5, counter=4, n=3, x=27, y=37, z=24] [L37] CALL __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [\old(cond)=1, counter=4] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=4] [L37] RET __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [a=5, counter=4, n=3, x=27, y=37, z=24] [L38] CALL __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [\old(cond)=1, counter=4] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=4] [L38] RET __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [a=5, counter=4, n=3, x=27, y=37, z=24] [L39] COND FALSE !(!(n <= a)) [L42] n = n + 1 [L43] x = x + y [L44] y = y + z [L45] z = z + 6 VAL [a=5, counter=4, n=4, x=64, y=61, z=30] [L33] EXPR counter++ VAL [a=5, counter=5, counter++=4, n=4, x=64, y=61, z=30] [L33] COND TRUE counter++<5 [L34] CALL __VERIFIER_assert(z == 6 * n + 6) VAL [\old(cond)=1, counter=5] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=5] [L34] RET __VERIFIER_assert(z == 6 * n + 6) VAL [a=5, counter=5, n=4, x=64, y=61, z=30] [L35] CALL __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [\old(cond)=1, counter=5] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=5] [L35] RET __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [a=5, counter=5, n=4, x=64, y=61, z=30] [L36] CALL __VERIFIER_assert(x == n * n * n) VAL [\old(cond)=1, counter=5] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=5] [L36] RET __VERIFIER_assert(x == n * n * n) VAL [a=5, counter=5, n=4, x=64, y=61, z=30] [L37] CALL __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [\old(cond)=1, counter=5] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=5] [L37] RET __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [a=5, counter=5, n=4, x=64, y=61, z=30] [L38] CALL __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [\old(cond)=1, counter=5] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=5] [L38] RET __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [a=5, counter=5, n=4, x=64, y=61, z=30] [L39] COND FALSE !(!(n <= a)) [L42] n = n + 1 [L43] x = x + y [L44] y = y + z [L45] z = z + 6 VAL [a=5, counter=5, n=5, x=125, y=91, z=36] [L33] EXPR counter++ VAL [a=5, counter=6, counter++=5, n=5, x=125, y=91, z=36] [L33] COND FALSE !(counter++<5) [L48] CALL __VERIFIER_assert(z == 6*n + 6) VAL [\old(cond)=1, counter=6] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=6] [L48] RET __VERIFIER_assert(z == 6*n + 6) VAL [a=5, counter=6, n=5, x=125, y=91, z=36] [L49] CALL __VERIFIER_assert(6*a*x - x*z + 12*x == 0) VAL [\old(cond)=0, counter=6] [L15] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=6] [L17] reach_error() VAL [\old(cond)=0, cond=0, counter=6] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 56.2MB in the beginning and 56.2MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.71ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 49.5MB in the beginning and 76.2MB in the end (delta: -26.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.68ms. Allocated memory is still 100.7MB. Free memory was 76.2MB in the beginning and 74.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.23ms. Allocated memory is still 100.7MB. Free memory was 74.7MB in the beginning and 73.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 296.88ms. Allocated memory is still 100.7MB. Free memory was 73.6MB in the beginning and 63.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 452074.35ms. Allocated memory was 100.7MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 63.0MB in the beginning and 682.2MB in the end (delta: -619.2MB). Peak memory consumption was 622.9MB. Max. memory is 16.1GB. * Witness Printer took 200.63ms. Allocated memory is still 1.3GB. Free memory was 681.2MB in the beginning and 674.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-22 23:14:11,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a13be78-859e-4790-8ddb-c0f5671ddc06/bin/ukojak-LBtLqBUTdQ/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE