./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/modulus-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/modulus-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB --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 573a31c00e41ae75ac0c33bb566a9b1a0edc6ad80bfad98caf671cb01963ec0c --- 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-dbf71c6-m [2022-10-17 16:36:51,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:36:51,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:36:51,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:36:51,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:36:51,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:36:51,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:36:51,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:36:51,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:36:51,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:36:51,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:36:51,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:36:51,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:36:51,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:36:51,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:36:51,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:36:51,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:36:51,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:36:51,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:36:51,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:36:51,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:36:51,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:36:51,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:36:51,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:36:51,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:36:51,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:36:51,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:36:51,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:36:51,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:36:51,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:36:51,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:36:51,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:36:51,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:36:51,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:36:51,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:36:51,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:36:51,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:36:51,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:36:51,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:36:51,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:36:51,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:36:51,812 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:36:51,854 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:36:51,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:36:51,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:36:51,856 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:36:51,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:36:51,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:36:51,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:36:51,857 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:36:51,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:36:51,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:36:51,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:36:51,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:36:51,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:36:51,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:36:51,859 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:36:51,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:36:51,859 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:36:51,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:36:51,860 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:36:51,860 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:36:51,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:36:51,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:36:51,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:36:51,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:36:51,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:36:51,861 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:36:51,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:36:51,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:36:51,862 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_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 573a31c00e41ae75ac0c33bb566a9b1a0edc6ad80bfad98caf671cb01963ec0c [2022-10-17 16:36:52,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:36:52,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:36:52,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:36:52,142 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:36:52,143 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:36:52,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/bitvector/modulus-2.i [2022-10-17 16:36:52,227 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/data/51307c291/f03466ccdbd14f57b44040c82c3f22e9/FLAGb696b085d [2022-10-17 16:36:52,662 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:36:52,663 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/sv-benchmarks/c/bitvector/modulus-2.i [2022-10-17 16:36:52,671 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/data/51307c291/f03466ccdbd14f57b44040c82c3f22e9/FLAGb696b085d [2022-10-17 16:36:53,034 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/data/51307c291/f03466ccdbd14f57b44040c82c3f22e9 [2022-10-17 16:36:53,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:36:53,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:36:53,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:36:53,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:36:53,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:36:53,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:36:53" (1/1) ... [2022-10-17 16:36:53,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62d54c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:53, skipping insertion in model container [2022-10-17 16:36:53,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:36:53" (1/1) ... [2022-10-17 16:36:53,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:36:53,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:36:53,243 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_6294b4e8-8b19-4918-b2d7-55a7c909215e/sv-benchmarks/c/bitvector/modulus-2.i[1252,1265] [2022-10-17 16:36:53,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:36:53,272 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:36:53,285 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_6294b4e8-8b19-4918-b2d7-55a7c909215e/sv-benchmarks/c/bitvector/modulus-2.i[1252,1265] [2022-10-17 16:36:53,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:36:53,305 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:36:53,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:53 WrapperNode [2022-10-17 16:36:53,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:36:53,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:36:53,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:36:53,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:36:53,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:53" (1/1) ... [2022-10-17 16:36:53,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:53" (1/1) ... [2022-10-17 16:36:53,340 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2022-10-17 16:36:53,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:36:53,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:36:53,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:36:53,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:36:53,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:53" (1/1) ... [2022-10-17 16:36:53,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:53" (1/1) ... [2022-10-17 16:36:53,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:53" (1/1) ... [2022-10-17 16:36:53,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:53" (1/1) ... [2022-10-17 16:36:53,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:53" (1/1) ... [2022-10-17 16:36:53,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:53" (1/1) ... [2022-10-17 16:36:53,363 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:53" (1/1) ... [2022-10-17 16:36:53,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:53" (1/1) ... [2022-10-17 16:36:53,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:36:53,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:36:53,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:36:53,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:36:53,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:53" (1/1) ... [2022-10-17 16:36:53,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:36:53,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:36:53,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:36:53,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:36:53,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:36:53,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:36:53,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:36:53,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:36:53,525 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:36:53,527 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:36:53,706 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:36:53,766 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:36:53,767 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 16:36:53,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:36:53 BoogieIcfgContainer [2022-10-17 16:36:53,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:36:53,779 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:36:53,780 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:36:53,793 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:36:53,793 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:36:53" (1/1) ... [2022-10-17 16:36:53,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:36:53,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:53,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2022-10-17 16:36:53,864 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2022-10-17 16:36:53,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:36:53,866 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:53,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:54,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 16:36:54,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:36:54,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:36:54,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:54,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2022-10-17 16:36:54,846 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2022-10-17 16:36:54,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:36:54,847 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:54,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:54,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 16:36:54,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:36:54,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:36:55,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:55,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 13 states and 21 transitions. [2022-10-17 16:36:55,017 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 21 transitions. [2022-10-17 16:36:55,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:36:55,020 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:55,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:55,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 16:36:55,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:36:55,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:36:55,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:55,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 9 states and 13 transitions. [2022-10-17 16:36:55,790 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 13 transitions. [2022-10-17 16:36:55,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:36:55,791 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2022-10-17 16:36:55,800 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:36:55,830 INFO L560 CodeCheckObserver]: Invariant with dag size 9 [2022-10-17 16:36:55,842 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:36:55,843 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:36:55,844 INFO L560 CodeCheckObserver]: Invariant with dag size 8 [2022-10-17 16:36:55,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:36:55 ImpRootNode [2022-10-17 16:36:55,846 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:36:55,846 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:36:55,847 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:36:55,848 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:36:55,848 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:36:53" (3/4) ... [2022-10-17 16:36:55,852 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:36:55,865 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-10-17 16:36:55,866 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-10-17 16:36:55,866 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:36:55,867 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:36:55,937 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:36:55,943 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:36:55,944 INFO L158 Benchmark]: Toolchain (without parser) took 2905.87ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 57.2MB in the beginning and 71.0MB in the end (delta: -13.8MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-10-17 16:36:55,945 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:36:55,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.51ms. Allocated memory is still 100.7MB. Free memory was 57.0MB in the beginning and 74.8MB in the end (delta: -17.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 16:36:55,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.61ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 73.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:36:55,951 INFO L158 Benchmark]: Boogie Preprocessor took 24.52ms. Allocated memory is still 100.7MB. Free memory was 73.0MB in the beginning and 71.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:36:55,952 INFO L158 Benchmark]: RCFGBuilder took 411.46ms. Allocated memory is still 100.7MB. Free memory was 71.9MB in the beginning and 59.4MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 16:36:55,953 INFO L158 Benchmark]: CodeCheck took 2066.76ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 59.1MB in the beginning and 74.2MB in the end (delta: -15.1MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-10-17 16:36:55,954 INFO L158 Benchmark]: Witness Printer took 97.15ms. Allocated memory is still 121.6MB. Free memory was 74.2MB in the beginning and 71.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:36:55,959 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, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 9 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 182 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 SizeOfPredicates, 10 NumberOfNonLiveVariables, 131 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 29]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 < d % 4294967296 && m == n - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: d % 4294967296 <= 4294967294 && 0 < d % 4294967296 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.51ms. Allocated memory is still 100.7MB. Free memory was 57.0MB in the beginning and 74.8MB in the end (delta: -17.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.61ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 73.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.52ms. Allocated memory is still 100.7MB. Free memory was 73.0MB in the beginning and 71.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 411.46ms. Allocated memory is still 100.7MB. Free memory was 71.9MB in the beginning and 59.4MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 2066.76ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 59.1MB in the beginning and 74.2MB in the end (delta: -15.1MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Witness Printer took 97.15ms. Allocated memory is still 121.6MB. Free memory was 74.2MB in the beginning and 71.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:36:55,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6294b4e8-8b19-4918-b2d7-55a7c909215e/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE