./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/reducercommutativity/avg.i --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_e0f6600d-6db1-4970-ae00-80a4d2342dee/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f6600d-6db1-4970-ae00-80a4d2342dee/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_e0f6600d-6db1-4970-ae00-80a4d2342dee/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f6600d-6db1-4970-ae00-80a4d2342dee/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/reducercommutativity/avg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f6600d-6db1-4970-ae00-80a4d2342dee/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_e0f6600d-6db1-4970-ae00-80a4d2342dee/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 40ea744e34964af110b03a02fd30edb5f9eceb5eca9cf560d6cf7ef319b1e1e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:41:12,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:41:12,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:41:12,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:41:12,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:41:12,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:41:12,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:41:12,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:41:12,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:41:12,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:41:12,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:41:12,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:41:12,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:41:12,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:41:12,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:41:12,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:41:12,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:41:12,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:41:12,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:41:12,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:41:12,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:41:12,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:41:12,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:41:12,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:41:12,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:41:12,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:41:12,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:41:12,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:41:12,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:41:12,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:41:12,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:41:12,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:41:12,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:41:12,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:41:12,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:41:12,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:41:12,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:41:12,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:41:12,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:41:12,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:41:12,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:41:12,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f6600d-6db1-4970-ae00-80a4d2342dee/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:41:12,737 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:41:12,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:41:12,738 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:41:12,738 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:41:12,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:41:12,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:41:12,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:41:12,739 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:41:12,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:41:12,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:41:12,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:41:12,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:41:12,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:41:12,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:41:12,741 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:41:12,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:41:12,741 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:41:12,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:41:12,742 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:41:12,742 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:41:12,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:41:12,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:41:12,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:41:12,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:41:12,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:41:12,743 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:41:12,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:41:12,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:41:12,744 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_e0f6600d-6db1-4970-ae00-80a4d2342dee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f6600d-6db1-4970-ae00-80a4d2342dee/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40ea744e34964af110b03a02fd30edb5f9eceb5eca9cf560d6cf7ef319b1e1e5 [2021-11-23 01:41:13,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:41:13,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:41:13,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:41:13,100 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:41:13,105 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:41:13,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f6600d-6db1-4970-ae00-80a4d2342dee/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/reducercommutativity/avg.i [2021-11-23 01:41:13,196 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f6600d-6db1-4970-ae00-80a4d2342dee/bin/ukojak-LBtLqBUTdQ/data/124b224e3/7fa588329f454d8b868bd1c18d2931a1/FLAGee676b89e [2021-11-23 01:41:13,820 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:41:13,822 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f6600d-6db1-4970-ae00-80a4d2342dee/sv-benchmarks/c/reducercommutativity/avg.i [2021-11-23 01:41:13,834 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f6600d-6db1-4970-ae00-80a4d2342dee/bin/ukojak-LBtLqBUTdQ/data/124b224e3/7fa588329f454d8b868bd1c18d2931a1/FLAGee676b89e [2021-11-23 01:41:14,156 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f6600d-6db1-4970-ae00-80a4d2342dee/bin/ukojak-LBtLqBUTdQ/data/124b224e3/7fa588329f454d8b868bd1c18d2931a1 [2021-11-23 01:41:14,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:41:14,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:41:14,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:41:14,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:41:14,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:41:14,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:41:14" (1/1) ... [2021-11-23 01:41:14,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac2e52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:14, skipping insertion in model container [2021-11-23 01:41:14,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:41:14" (1/1) ... [2021-11-23 01:41:14,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:41:14,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:41:14,408 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_e0f6600d-6db1-4970-ae00-80a4d2342dee/sv-benchmarks/c/reducercommutativity/avg.i[1286,1299] [2021-11-23 01:41:14,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:41:14,420 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:41:14,444 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_e0f6600d-6db1-4970-ae00-80a4d2342dee/sv-benchmarks/c/reducercommutativity/avg.i[1286,1299] [2021-11-23 01:41:14,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:41:14,466 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:41:14,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:14 WrapperNode [2021-11-23 01:41:14,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:41:14,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:41:14,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:41:14,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:41:14,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:14" (1/1) ... [2021-11-23 01:41:14,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:14" (1/1) ... [2021-11-23 01:41:14,507 INFO L137 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2021-11-23 01:41:14,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:41:14,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:41:14,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:41:14,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:41:14,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:14" (1/1) ... [2021-11-23 01:41:14,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:14" (1/1) ... [2021-11-23 01:41:14,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:14" (1/1) ... [2021-11-23 01:41:14,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:14" (1/1) ... [2021-11-23 01:41:14,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:14" (1/1) ... [2021-11-23 01:41:14,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:14" (1/1) ... [2021-11-23 01:41:14,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:14" (1/1) ... [2021-11-23 01:41:14,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:41:14,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:41:14,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:41:14,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:41:14,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:14" (1/1) ... [2021-11-23 01:41:14,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:41:14,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f6600d-6db1-4970-ae00-80a4d2342dee/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:41:14,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f6600d-6db1-4970-ae00-80a4d2342dee/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:41:14,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f6600d-6db1-4970-ae00-80a4d2342dee/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:41:14,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:41:14,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:41:14,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:41:14,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:41:14,633 INFO L130 BoogieDeclarations]: Found specification of procedure avg [2021-11-23 01:41:14,633 INFO L138 BoogieDeclarations]: Found implementation of procedure avg [2021-11-23 01:41:14,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:41:14,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:41:14,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:41:14,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:41:14,707 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:41:14,708 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:41:14,988 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:41:15,049 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:41:15,049 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 01:41:15,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:41:15 BoogieIcfgContainer [2021-11-23 01:41:15,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:41:15,052 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:41:15,053 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:41:15,064 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:41:15,064 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:41:15" (1/1) ... [2021-11-23 01:41:15,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:41:15,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:15,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2021-11-23 01:41:15,181 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2021-11-23 01:41:15,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:41:15,187 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:15,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:15,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 01:41:15,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:15,620 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 01:41:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:15,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 27 transitions. [2021-11-23 01:41:15,718 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-11-23 01:41:15,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:41:15,720 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:15,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:15,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:41:15,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:15,925 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 01:41:15,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:15,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 28 transitions. [2021-11-23 01:41:15,984 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2021-11-23 01:41:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:41:15,986 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:15,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:16,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 01:41:16,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:16,144 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 01:41:16,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:16,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 30 transitions. [2021-11-23 01:41:16,224 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2021-11-23 01:41:16,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 01:41:16,226 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:16,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:16,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 01:41:16,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:16,358 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-23 01:41:16,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:16,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 24 states and 32 transitions. [2021-11-23 01:41:16,402 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2021-11-23 01:41:16,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 01:41:16,403 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:16,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:16,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 01:41:16,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:16,526 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:41:16,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:16,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2021-11-23 01:41:16,583 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2021-11-23 01:41:16,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:41:16,584 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:16,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:16,790 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 87 conjunts are in the unsatisfiable core [2021-11-23 01:41:16,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:17,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:41:17,867 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:41:17,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 266 treesize of output 136 [2021-11-23 01:41:36,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:41:36,816 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:41:36,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 503 treesize of output 258 [2021-11-23 01:41:45,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:41:45,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:41:45,625 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:41:45,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 412 treesize of output 270 [2021-11-23 01:41:53,366 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-11-23 01:41:53,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 748 treesize of output 367 [2021-11-23 01:43:41,567 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 01:45:39,775 WARN L227 SmtUtils]: Spent 9.67s on a formula simplification. DAG size of input: 65 DAG size of output: 65 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:46:14,154 WARN L227 SmtUtils]: Spent 12.78s on a formula simplification. DAG size of input: 70 DAG size of output: 70 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:47:09,983 WARN L227 SmtUtils]: Spent 7.01s on a formula simplification. DAG size of input: 69 DAG size of output: 69 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:49:21,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:49:21,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 31 states and 54 transitions. [2021-11-23 01:49:21,587 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2021-11-23 01:49:21,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:49:21,590 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:49:21,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:49:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:49:22,299 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 91 conjunts are in the unsatisfiable core [2021-11-23 01:49:22,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:49:25,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:49:25,064 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:49:25,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 266 treesize of output 136 [2021-11-23 01:49:45,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:49:45,559 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:49:45,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 503 treesize of output 258 [2021-11-23 01:49:50,896 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:49:50,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:49:50,908 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:49:50,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 412 treesize of output 270 [2021-11-23 01:49:57,341 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-11-23 01:49:57,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 748 treesize of output 367 [2021-11-23 01:52:36,053 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 29 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 01:52:40,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:52:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 31 states and 54 transitions. [2021-11-23 01:52:40,032 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2021-11-23 01:52:40,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:52:40,034 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:52:40,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:52:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:52:40,481 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 87 conjunts are in the unsatisfiable core [2021-11-23 01:52:40,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:52:43,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:52:43,368 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:52:43,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 266 treesize of output 136 [2021-11-23 01:53:03,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:53:03,800 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:53:03,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 503 treesize of output 258 [2021-11-23 01:53:07,774 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:53:07,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:53:07,787 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:53:07,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 412 treesize of output 270 [2021-11-23 01:53:13,781 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-11-23 01:53:13,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 748 treesize of output 367 [2021-11-23 01:54:23,039 WARN L860 $PredicateComparison]: unable to prove that (exists ((~N~0 Int) (v_arrayElimCell_27 Int) (v_arrayElimCell_26 Int)) (let ((.cse13 (+ v_arrayElimCell_27 v_arrayElimCell_26))) (let ((.cse14 (div .cse13 ~N~0))) (let ((.cse6 (mod .cse14 4294967296)) (.cse12 (= (mod .cse13 ~N~0) 0)) (.cse3 (mod (+ .cse14 1) 4294967296))) (let ((.cse2 (<= .cse3 2147483647)) (.cse5 (< 2147483647 .cse3)) (.cse0 (not .cse12)) (.cse1 (< .cse13 0)) (.cse8 (< 2147483647 .cse6)) (.cse7 (<= .cse6 2147483647)) (.cse9 (or .cse12 (<= 0 .cse13)))) (and (let ((.cse4 (+ |c_ULTIMATE.start_main_~ret~1#1| 4294967296))) (or (and .cse0 .cse1 (or (and .cse2 (= |c_ULTIMATE.start_main_~ret~1#1| .cse3)) (and (= .cse4 .cse3) .cse5))) (and (or (and (= |c_ULTIMATE.start_main_~ret~1#1| .cse6) .cse7) (and (= .cse4 .cse6) .cse8)) .cse9))) (let ((.cse10 (+ |c_ULTIMATE.start_main_~ret2~0#1| 4294967296))) (or (and (or (and (= |c_ULTIMATE.start_main_~ret2~0#1| .cse3) .cse2) (and (= .cse10 .cse3) .cse5)) .cse0 .cse1) (and (or (and (= |c_ULTIMATE.start_main_~ret2~0#1| .cse6) .cse7) (and .cse8 (= .cse10 .cse6))) .cse9))) (let ((.cse11 (+ 4294967296 |c_ULTIMATE.start_main_#t~ret11#1|))) (or (and (or (and .cse2 (= .cse3 |c_ULTIMATE.start_main_#t~ret11#1|)) (and .cse5 (= .cse11 .cse3))) .cse0 .cse1) (and (or (and .cse8 (= .cse11 .cse6)) (and .cse7 (= .cse6 |c_ULTIMATE.start_main_#t~ret11#1|))) .cse9))) (< 1 ~N~0) (<= ~N~0 2))))))) is different from true [2021-11-23 01:55:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.