./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array20_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/array20_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ea5bfa8a156bc44b081b7e322054bf4f8b50233fa79918ee2b9ae09354893d3a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 23:20:41,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 23:20:41,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 23:20:41,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 23:20:41,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 23:20:41,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 23:20:41,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 23:20:41,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 23:20:41,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 23:20:41,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 23:20:41,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 23:20:41,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 23:20:41,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 23:20:41,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 23:20:41,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 23:20:41,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 23:20:41,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 23:20:41,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 23:20:41,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 23:20:41,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 23:20:41,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 23:20:41,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 23:20:41,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 23:20:41,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 23:20:41,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 23:20:41,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 23:20:41,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 23:20:41,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 23:20:41,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 23:20:41,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 23:20:41,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 23:20:41,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 23:20:41,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 23:20:41,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 23:20:41,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 23:20:41,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 23:20:41,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 23:20:41,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 23:20:41,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 23:20:41,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 23:20:41,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 23:20:41,934 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-14 23:20:41,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 23:20:41,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 23:20:41,955 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 23:20:41,955 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 23:20:41,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 23:20:41,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 23:20:41,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 23:20:41,957 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 23:20:41,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 23:20:41,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 23:20:41,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 23:20:41,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 23:20:41,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 23:20:41,958 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 23:20:41,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 23:20:41,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 23:20:41,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 23:20:41,959 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 23:20:41,959 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 23:20:41,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 23:20:41,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:20:41,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 23:20:41,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 23:20:41,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 23:20:41,960 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 23:20:41,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 23:20:41,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 23:20:41,960 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_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea5bfa8a156bc44b081b7e322054bf4f8b50233fa79918ee2b9ae09354893d3a [2022-12-14 23:20:42,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 23:20:42,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 23:20:42,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 23:20:42,158 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 23:20:42,159 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 23:20:42,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-15/array20_alloca.i [2022-12-14 23:20:44,712 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 23:20:44,923 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 23:20:44,924 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/sv-benchmarks/c/termination-15/array20_alloca.i [2022-12-14 23:20:44,932 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4/data/33c80aea8/1d47572c0d28443782e690badbe39089/FLAG4aff5a0e5 [2022-12-14 23:20:45,281 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4/data/33c80aea8/1d47572c0d28443782e690badbe39089 [2022-12-14 23:20:45,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 23:20:45,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 23:20:45,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 23:20:45,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 23:20:45,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 23:20:45,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:20:45" (1/1) ... [2022-12-14 23:20:45,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d3d35d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:45, skipping insertion in model container [2022-12-14 23:20:45,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:20:45" (1/1) ... [2022-12-14 23:20:45,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 23:20:45,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 23:20:45,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:20:45,562 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 23:20:45,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:20:45,619 INFO L208 MainTranslator]: Completed translation [2022-12-14 23:20:45,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:45 WrapperNode [2022-12-14 23:20:45,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 23:20:45,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 23:20:45,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 23:20:45,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 23:20:45,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:45" (1/1) ... [2022-12-14 23:20:45,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:45" (1/1) ... [2022-12-14 23:20:45,652 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-12-14 23:20:45,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 23:20:45,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 23:20:45,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 23:20:45,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 23:20:45,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:45" (1/1) ... [2022-12-14 23:20:45,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:45" (1/1) ... [2022-12-14 23:20:45,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:45" (1/1) ... [2022-12-14 23:20:45,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:45" (1/1) ... [2022-12-14 23:20:45,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:45" (1/1) ... [2022-12-14 23:20:45,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:45" (1/1) ... [2022-12-14 23:20:45,670 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:45" (1/1) ... [2022-12-14 23:20:45,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:45" (1/1) ... [2022-12-14 23:20:45,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 23:20:45,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 23:20:45,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 23:20:45,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 23:20:45,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:45" (1/1) ... [2022-12-14 23:20:45,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:20:45,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 23:20:45,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 23:20:45,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 23:20:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 23:20:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 23:20:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 23:20:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 23:20:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 23:20:45,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 23:20:45,800 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 23:20:45,802 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 23:20:45,908 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 23:20:45,957 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 23:20:45,957 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 23:20:45,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:20:45 BoogieIcfgContainer [2022-12-14 23:20:45,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 23:20:45,961 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 23:20:45,961 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 23:20:45,971 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 23:20:45,972 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:20:45" (1/1) ... [2022-12-14 23:20:45,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 23:20:46,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:46,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2022-12-14 23:20:46,035 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-14 23:20:46,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 23:20:46,037 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:46,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:46,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:20:46,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:46,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2022-12-14 23:20:46,353 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2022-12-14 23:20:46,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 23:20:46,354 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:46,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:46,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:20:46,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:46,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2022-12-14 23:20:46,498 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2022-12-14 23:20:46,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 23:20:46,500 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:46,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:46,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 23:20:46,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:20:46,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:20:46,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:46,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2022-12-14 23:20:46,624 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2022-12-14 23:20:46,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 23:20:46,625 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:46,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:20:46,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:46,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2022-12-14 23:20:46,923 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2022-12-14 23:20:46,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 23:20:46,924 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:46,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:47,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:20:47,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:47,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 25 states and 40 transitions. [2022-12-14 23:20:47,172 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 40 transitions. [2022-12-14 23:20:47,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 23:20:47,172 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:47,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:47,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 23:20:47,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:20:47,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:20:47,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:47,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 26 states and 44 transitions. [2022-12-14 23:20:47,334 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 44 transitions. [2022-12-14 23:20:47,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 23:20:47,334 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:47,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:47,476 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:20:47,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:47,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 28 states and 45 transitions. [2022-12-14 23:20:47,592 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 45 transitions. [2022-12-14 23:20:47,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 23:20:47,592 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:47,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:47,713 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:20:47,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:47,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 53 transitions. [2022-12-14 23:20:47,925 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2022-12-14 23:20:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 23:20:47,926 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:47,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:47,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-14 23:20:47,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:20:48,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-12-14 23:20:48,078 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 23:20:48,086 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:20:48,087 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2022-12-14 23:20:48,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:20:48,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 23:20:48,280 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:20:48,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-12-14 23:20:48,312 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:20:49,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:49,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 33 states and 58 transitions. [2022-12-14 23:20:49,170 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 58 transitions. [2022-12-14 23:20:49,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 23:20:49,170 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:49,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:49,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 23:20:49,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:20:49,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-12-14 23:20:49,257 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:20:49,258 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2022-12-14 23:20:49,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:20:49,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-12-14 23:20:49,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:20:49,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 23:20:49,469 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:20:49,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-12-14 23:20:49,514 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:20:50,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:50,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 36 states and 69 transitions. [2022-12-14 23:20:50,784 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2022-12-14 23:20:50,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 23:20:50,784 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:50,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:20:51,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:51,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 38 states and 70 transitions. [2022-12-14 23:20:51,194 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 70 transitions. [2022-12-14 23:20:51,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 23:20:51,194 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:51,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:51,435 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:20:51,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:51,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 41 states and 80 transitions. [2022-12-14 23:20:51,822 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 80 transitions. [2022-12-14 23:20:51,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 23:20:51,823 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:51,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:51,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 23:20:51,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:20:51,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-12-14 23:20:51,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-12-14 23:20:51,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:20:51,924 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:20:51,925 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2022-12-14 23:20:51,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:20:52,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 23:20:52,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 72 [2022-12-14 23:20:52,175 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:20:52,176 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2022-12-14 23:20:52,178 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 23:20:52,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 23:20:52,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-12-14 23:20:52,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 23:20:52,283 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:20:52,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-12-14 23:20:52,288 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:20:53,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:53,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 41 states and 79 transitions. [2022-12-14 23:20:53,195 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 79 transitions. [2022-12-14 23:20:53,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 23:20:53,195 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:53,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:53,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 23:20:53,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:20:53,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-12-14 23:20:53,259 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 23:20:53,262 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:20:53,263 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2022-12-14 23:20:53,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:20:53,629 INFO L321 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-12-14 23:20:53,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-12-14 23:20:53,658 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 23:20:55,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:55,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 45 states and 95 transitions. [2022-12-14 23:20:55,520 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 95 transitions. [2022-12-14 23:20:55,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 23:20:55,521 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:55,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:55,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 23:20:55,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:20:55,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-12-14 23:20:55,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-12-14 23:20:55,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:20:55,622 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:20:55,623 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2022-12-14 23:20:55,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:20:55,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 23:20:55,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 72 [2022-12-14 23:20:55,954 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:20:55,955 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2022-12-14 23:20:55,957 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 23:20:55,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 23:20:55,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-12-14 23:20:56,057 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 23:20:56,059 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:20:56,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-12-14 23:20:56,064 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:20:57,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:57,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 45 states and 94 transitions. [2022-12-14 23:20:57,039 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 94 transitions. [2022-12-14 23:20:57,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 23:20:57,039 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:57,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:57,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 23:20:57,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:20:57,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-12-14 23:20:57,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-12-14 23:20:57,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:20:57,123 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:20:57,124 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2022-12-14 23:20:57,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:20:57,575 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 23:20:57,577 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:20:57,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-12-14 23:20:57,613 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 23:20:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:58,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 47 states and 99 transitions. [2022-12-14 23:20:58,946 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 99 transitions. [2022-12-14 23:20:58,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 23:20:58,946 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:58,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:20:58,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 23:20:58,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:20:59,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-12-14 23:20:59,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-12-14 23:20:59,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:20:59,029 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:20:59,029 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2022-12-14 23:20:59,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:20:59,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 23:20:59,192 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:20:59,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-12-14 23:20:59,223 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 23:20:59,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:20:59,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 48 states and 101 transitions. [2022-12-14 23:20:59,784 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 101 transitions. [2022-12-14 23:20:59,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 23:20:59,785 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:20:59,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:20:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:21:00,113 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:21:00,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:21:00,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 50 states and 102 transitions. [2022-12-14 23:21:00,505 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 102 transitions. [2022-12-14 23:21:00,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 23:21:00,505 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:21:00,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:21:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:21:00,857 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:21:01,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:21:01,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 53 states and 113 transitions. [2022-12-14 23:21:01,628 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 113 transitions. [2022-12-14 23:21:01,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 23:21:01,629 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:21:01,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:21:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:21:01,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-14 23:21:01,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:21:01,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-12-14 23:21:01,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-12-14 23:21:01,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:21:01,698 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:21:01,698 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-14 23:21:01,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 74 [2022-12-14 23:21:01,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 19 [2022-12-14 23:21:01,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2022-12-14 23:21:01,949 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:21:01,950 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2022-12-14 23:21:01,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 16 [2022-12-14 23:21:02,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 74 [2022-12-14 23:21:02,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 19 [2022-12-14 23:21:02,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2022-12-14 23:21:02,226 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:21:02,227 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2022-12-14 23:21:02,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 16 [2022-12-14 23:21:02,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 23:21:02,406 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:21:02,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-12-14 23:21:02,410 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:21:03,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:21:03,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 53 states and 112 transitions. [2022-12-14 23:21:03,511 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 112 transitions. [2022-12-14 23:21:03,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 23:21:03,511 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:21:03,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:21:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:21:03,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-14 23:21:03,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:21:03,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-12-14 23:21:03,581 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 23:21:03,584 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:21:03,585 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2022-12-14 23:21:03,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:21:03,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 74 [2022-12-14 23:21:03,624 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:21:03,624 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2022-12-14 23:21:03,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 16 [2022-12-14 23:21:03,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-12-14 23:21:03,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 16 [2022-12-14 23:21:04,252 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:21:04,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 36 [2022-12-14 23:21:04,371 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 23:21:11,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:21:11,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 58 states and 126 transitions. [2022-12-14 23:21:11,828 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 126 transitions. [2022-12-14 23:21:11,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 23:21:11,828 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:21:11,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:21:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:21:11,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 38 conjunts are in the unsatisfiable core [2022-12-14 23:21:11,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 23:21:11,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-12-14 23:21:11,901 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:21:11,902 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2022-12-14 23:21:11,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:21:11,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-12-14 23:21:11,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 23:21:12,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 74 [2022-12-14 23:21:12,246 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:21:12,246 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2022-12-14 23:21:12,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 16 [2022-12-14 23:21:12,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 74 [2022-12-14 23:21:12,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-12-14 23:21:12,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 16 [2022-12-14 23:21:12,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 23:21:12,811 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 23:21:12,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-12-14 23:21:12,817 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:21:14,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:21:14,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 58 states and 125 transitions. [2022-12-14 23:21:14,847 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 125 transitions. [2022-12-14 23:21:14,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 23:21:14,847 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:21:14,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:21:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 23:21:14,875 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 23:21:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 23:21:14,907 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 23 iterations. [2022-12-14 23:21:14,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 11:21:14 ImpRootNode [2022-12-14 23:21:14,932 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 23:21:14,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 23:21:14,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 23:21:14,932 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 23:21:14,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:20:45" (3/4) ... [2022-12-14 23:21:14,934 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 23:21:14,966 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f53b7b-bd18-45d0-9113-c7451aa9f639/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 23:21:14,967 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 23:21:14,967 INFO L158 Benchmark]: Toolchain (without parser) took 29680.06ms. Allocated memory is still 172.0MB. Free memory was 138.5MB in the beginning and 109.9MB in the end (delta: 28.6MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2022-12-14 23:21:14,967 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 119.5MB. Free memory was 82.0MB in the beginning and 82.0MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 23:21:14,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.98ms. Allocated memory is still 172.0MB. Free memory was 138.5MB in the beginning and 121.3MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 23:21:14,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.01ms. Allocated memory is still 172.0MB. Free memory was 121.3MB in the beginning and 119.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 23:21:14,968 INFO L158 Benchmark]: Boogie Preprocessor took 19.78ms. Allocated memory is still 172.0MB. Free memory was 119.2MB in the beginning and 118.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 23:21:14,969 INFO L158 Benchmark]: RCFGBuilder took 286.17ms. Allocated memory is still 172.0MB. Free memory was 118.0MB in the beginning and 104.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 23:21:14,969 INFO L158 Benchmark]: CodeCheck took 28970.98ms. Allocated memory is still 172.0MB. Free memory was 104.5MB in the beginning and 112.0MB in the end (delta: -7.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 23:21:14,969 INFO L158 Benchmark]: Witness Printer took 34.60ms. Allocated memory is still 172.0MB. Free memory was 112.0MB in the beginning and 109.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 23:21:14,971 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 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 28.9s, OverallIterations: 23, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 911 SdHoareTripleChecker+Valid, 7.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 726 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 6.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1178 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5080 IncrementalHoareTripleChecker+Invalid, 6258 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1178 mSolverCounterUnsat, 40 mSDtfsCounter, 5080 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2738 GetRequests, 2287 SyntacticMatches, 185 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 8 DeprecatedPredicates, 37936 ImplicationChecksByTransitivity, 24.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 244 ConstructedInterpolants, 54 QuantifiedInterpolants, 3276 SizeOfPredicates, 86 NumberOfNonLiveVariables, 953 ConjunctsInSsa, 274 ConjunctsInUnsatCore, 22 InterpolantComputations, 3 PerfectInterpolantSequences, 22/226 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: 378]: integer overflow possible integer overflow possible We found a FailurePath: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND FALSE !(length < 1) [L368] int *arr = __builtin_alloca(length*sizeof(int)); VAL [__builtin_alloca(length*sizeof(int))={2:0}, arr={2:0}, length=3] [L369] COND FALSE !(!arr) [L370] i=0 VAL [__builtin_alloca(length*sizeof(int))={2:0}, arr={2:0}, i=0, length=3] [L370] COND TRUE i