./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ncomp.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_27a2f6da-fcd6-4135-b988-e0e272b72735/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a2f6da-fcd6-4135-b988-e0e272b72735/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_27a2f6da-fcd6-4135-b988-e0e272b72735/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a2f6da-fcd6-4135-b988-e0e272b72735/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ncomp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a2f6da-fcd6-4135-b988-e0e272b72735/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_27a2f6da-fcd6-4135-b988-e0e272b72735/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 c3d1ff002f6e6cf179cc6204a129c133a3beda704ea9fff27ad69a10f5c1f33d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:23:42,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:23:42,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:23:43,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:23:43,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:23:43,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:23:43,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:23:43,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:23:43,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:23:43,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:23:43,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:23:43,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:23:43,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:23:43,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:23:43,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:23:43,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:23:43,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:23:43,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:23:43,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:23:43,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:23:43,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:23:43,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:23:43,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:23:43,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:23:43,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:23:43,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:23:43,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:23:43,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:23:43,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:23:43,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:23:43,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:23:43,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:23:43,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:23:43,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:23:43,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:23:43,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:23:43,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:23:43,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:23:43,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:23:43,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:23:43,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:23:43,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a2f6da-fcd6-4135-b988-e0e272b72735/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:23:43,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:23:43,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:23:43,149 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:23:43,149 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:23:43,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:23:43,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:23:43,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:23:43,151 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:23:43,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:23:43,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:23:43,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:23:43,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:23:43,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:23:43,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:23:43,158 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:23:43,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:23:43,158 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:23:43,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:23:43,158 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:23:43,159 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:23:43,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:23:43,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:23:43,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:23:43,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:23:43,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:23:43,160 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:23:43,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:23:43,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:23:43,160 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_27a2f6da-fcd6-4135-b988-e0e272b72735/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a2f6da-fcd6-4135-b988-e0e272b72735/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3d1ff002f6e6cf179cc6204a129c133a3beda704ea9fff27ad69a10f5c1f33d [2021-11-23 01:23:43,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:23:43,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:23:43,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:23:43,498 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:23:43,499 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:23:43,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a2f6da-fcd6-4135-b988-e0e272b72735/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/array-fpi/ncomp.c [2021-11-23 01:23:43,583 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a2f6da-fcd6-4135-b988-e0e272b72735/bin/ukojak-LBtLqBUTdQ/data/5aecd6c7a/999c56a0220440a484d45bc789dae277/FLAG438620e86 [2021-11-23 01:23:44,183 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:23:44,184 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a2f6da-fcd6-4135-b988-e0e272b72735/sv-benchmarks/c/array-fpi/ncomp.c [2021-11-23 01:23:44,197 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a2f6da-fcd6-4135-b988-e0e272b72735/bin/ukojak-LBtLqBUTdQ/data/5aecd6c7a/999c56a0220440a484d45bc789dae277/FLAG438620e86 [2021-11-23 01:23:44,534 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a2f6da-fcd6-4135-b988-e0e272b72735/bin/ukojak-LBtLqBUTdQ/data/5aecd6c7a/999c56a0220440a484d45bc789dae277 [2021-11-23 01:23:44,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:23:44,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:23:44,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:23:44,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:23:44,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:23:44,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:23:44" (1/1) ... [2021-11-23 01:23:44,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2cf30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:44, skipping insertion in model container [2021-11-23 01:23:44,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:23:44" (1/1) ... [2021-11-23 01:23:44,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:23:44,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:23:44,762 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_27a2f6da-fcd6-4135-b988-e0e272b72735/sv-benchmarks/c/array-fpi/ncomp.c[588,601] [2021-11-23 01:23:44,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:23:44,811 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:23:44,824 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_27a2f6da-fcd6-4135-b988-e0e272b72735/sv-benchmarks/c/array-fpi/ncomp.c[588,601] [2021-11-23 01:23:44,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:23:44,850 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:23:44,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:44 WrapperNode [2021-11-23 01:23:44,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:23:44,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:23:44,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:23:44,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:23:44,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:44" (1/1) ... [2021-11-23 01:23:44,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:44" (1/1) ... [2021-11-23 01:23:44,919 INFO L137 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2021-11-23 01:23:44,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:23:44,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:23:44,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:23:44,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:23:44,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:44" (1/1) ... [2021-11-23 01:23:44,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:44" (1/1) ... [2021-11-23 01:23:44,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:44" (1/1) ... [2021-11-23 01:23:44,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:44" (1/1) ... [2021-11-23 01:23:44,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:44" (1/1) ... [2021-11-23 01:23:44,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:44" (1/1) ... [2021-11-23 01:23:44,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:44" (1/1) ... [2021-11-23 01:23:44,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:23:44,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:23:44,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:23:44,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:23:44,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:44" (1/1) ... [2021-11-23 01:23:44,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:23:45,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a2f6da-fcd6-4135-b988-e0e272b72735/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:23:45,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a2f6da-fcd6-4135-b988-e0e272b72735/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:23:45,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a2f6da-fcd6-4135-b988-e0e272b72735/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:23:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:23:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:23:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:23:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:23:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:23:45,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:23:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:23:45,157 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:23:45,159 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:23:45,365 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:23:45,408 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:23:45,408 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 01:23:45,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:23:45 BoogieIcfgContainer [2021-11-23 01:23:45,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:23:45,412 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:23:45,412 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:23:45,423 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:23:45,424 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:23:45" (1/1) ... [2021-11-23 01:23:45,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:23:45,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:45,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2021-11-23 01:23:45,500 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2021-11-23 01:23:45,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:23:45,503 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:45,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:45,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 01:23:45,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:45,945 INFO L354 Elim1Store]: treesize reduction 55, result has 40.9 percent of original size [2021-11-23 01:23:45,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 45 [2021-11-23 01:23:46,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:23:46,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:46,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 17 states and 33 transitions. [2021-11-23 01:23:46,349 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 33 transitions. [2021-11-23 01:23:46,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:23:46,350 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:46,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:46,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:23:46,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:46,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:23:46,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:46,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 19 states and 42 transitions. [2021-11-23 01:23:46,742 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 42 transitions. [2021-11-23 01:23:46,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:23:46,745 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:46,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:46,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:23:46,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:46,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:23:46,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:46,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 20 states and 46 transitions. [2021-11-23 01:23:46,869 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 46 transitions. [2021-11-23 01:23:46,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:23:46,870 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:46,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:46,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:23:46,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:46,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:23:47,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:47,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 23 states and 59 transitions. [2021-11-23 01:23:47,374 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 59 transitions. [2021-11-23 01:23:47,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 01:23:47,375 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:47,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:47,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:23:47,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:47,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:23:47,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:47,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 26 states and 67 transitions. [2021-11-23 01:23:47,868 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 67 transitions. [2021-11-23 01:23:47,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 01:23:47,869 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:47,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:47,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:23:47,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:47,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:23:48,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:48,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 27 states and 71 transitions. [2021-11-23 01:23:48,035 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 71 transitions. [2021-11-23 01:23:48,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:23:48,036 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:48,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:48,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 01:23:48,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:48,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:23:48,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:48,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 31 states and 78 transitions. [2021-11-23 01:23:48,470 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 78 transitions. [2021-11-23 01:23:48,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:23:48,471 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:48,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:48,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 01:23:48,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:48,633 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 01:23:48,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 19 [2021-11-23 01:23:48,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 22 [2021-11-23 01:23:48,785 INFO L354 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2021-11-23 01:23:48,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 42 [2021-11-23 01:23:49,921 INFO L354 Elim1Store]: treesize reduction 1911, result has 15.7 percent of original size [2021-11-23 01:23:49,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 53 case distinctions, treesize of input 272 treesize of output 528 [2021-11-23 01:23:50,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,127 INFO L354 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2021-11-23 01:23:50,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 12 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 309 treesize of output 182 [2021-11-23 01:23:50,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 182 [2021-11-23 01:23:50,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:50,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 230 treesize of output 148 [2021-11-23 01:23:51,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 596 treesize of output 484 [2021-11-23 01:23:51,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,349 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:23:51,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:23:51,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 12 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 241 treesize of output 155 [2021-11-23 01:24:08,953 WARN L227 SmtUtils]: Spent 11.41s on a formula simplification. DAG size of input: 352 DAG size of output: 192 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 01:24:08,956 INFO L354 Elim1Store]: treesize reduction 958, result has 35.5 percent of original size [2021-11-23 01:24:08,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 19 select indices, 19 select index equivalence classes, 3 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 73 case distinctions, treesize of input 1134 treesize of output 1242 [2021-11-23 01:28:04,432 WARN L227 SmtUtils]: Spent 9.70s on a formula simplification that was a NOOP. DAG size: 9 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:28:23,701 WARN L227 SmtUtils]: Spent 13.82s on a formula simplification that was a NOOP. DAG size: 9 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)