./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/jain_6-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/jain_6-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash de5b2075d4abb79268518f13a43be5f1c1d9b9145e6334b0e9e03aa6c29e2c89 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:00:09,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:00:09,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:00:09,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:00:09,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:00:09,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:00:09,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:00:09,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:00:09,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:00:09,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:00:09,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:00:09,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:00:09,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:00:09,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:00:09,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:00:09,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:00:09,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:00:09,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:00:09,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:00:09,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:00:09,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:00:09,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:00:09,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:00:09,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:00:09,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:00:09,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:00:09,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:00:09,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:00:09,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:00:09,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:00:09,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:00:09,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:00:09,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:00:09,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:00:09,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:00:09,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:00:09,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:00:09,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:00:09,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:00:09,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:00:09,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:00:09,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:00:09,410 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:00:09,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:00:09,411 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:00:09,411 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:00:09,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:00:09,412 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:00:09,413 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:00:09,413 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:00:09,413 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:00:09,413 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:00:09,413 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:00:09,414 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:00:09,414 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:00:09,414 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:00:09,414 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:00:09,415 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:00:09,415 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:00:09,415 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:00:09,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:00:09,416 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:00:09,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:00:09,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:00:09,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:00:09,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:00:09,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:00:09,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:00:09,418 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:00:09,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:00:09,418 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:00:09,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:00:09,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:00:09,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:00:09,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:00:09,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:00:09,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:00:09,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:00:09,420 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:00:09,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:00:09,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:00:09,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:00:09,421 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:00:09,421 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de5b2075d4abb79268518f13a43be5f1c1d9b9145e6334b0e9e03aa6c29e2c89 [2021-11-25 18:00:09,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:00:09,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:00:09,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:00:09,680 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:00:09,688 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:00:09,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/bitvector/jain_6-1.c [2021-11-25 18:00:09,769 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/data/3ce0da47a/ecedbb5f1da84d43b1a54462c36b79a9/FLAG9ee8a28a6 [2021-11-25 18:00:10,302 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:00:10,302 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/sv-benchmarks/c/bitvector/jain_6-1.c [2021-11-25 18:00:10,312 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/data/3ce0da47a/ecedbb5f1da84d43b1a54462c36b79a9/FLAG9ee8a28a6 [2021-11-25 18:00:10,660 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/data/3ce0da47a/ecedbb5f1da84d43b1a54462c36b79a9 [2021-11-25 18:00:10,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:00:10,665 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:00:10,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:00:10,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:00:10,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:00:10,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:00:10" (1/1) ... [2021-11-25 18:00:10,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40e79350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:10, skipping insertion in model container [2021-11-25 18:00:10,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:00:10" (1/1) ... [2021-11-25 18:00:10,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:00:10,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:00:10,932 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_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/sv-benchmarks/c/bitvector/jain_6-1.c[675,688] [2021-11-25 18:00:10,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:00:10,952 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:00:10,965 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_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/sv-benchmarks/c/bitvector/jain_6-1.c[675,688] [2021-11-25 18:00:10,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:00:10,981 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:00:10,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:10 WrapperNode [2021-11-25 18:00:10,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:00:10,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:00:10,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:00:10,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:00:10,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:10" (1/1) ... [2021-11-25 18:00:11,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:10" (1/1) ... [2021-11-25 18:00:11,018 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2021-11-25 18:00:11,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:00:11,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:00:11,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:00:11,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:00:11,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:10" (1/1) ... [2021-11-25 18:00:11,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:10" (1/1) ... [2021-11-25 18:00:11,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:10" (1/1) ... [2021-11-25 18:00:11,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:10" (1/1) ... [2021-11-25 18:00:11,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:10" (1/1) ... [2021-11-25 18:00:11,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:10" (1/1) ... [2021-11-25 18:00:11,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:10" (1/1) ... [2021-11-25 18:00:11,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:00:11,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:00:11,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:00:11,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:00:11,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:10" (1/1) ... [2021-11-25 18:00:11,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:00:11,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:00:11,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:00:11,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:00:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:00:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:00:11,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:00:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:00:11,233 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:00:11,235 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:00:11,374 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:00:11,404 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:00:11,404 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 18:00:11,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:00:11 BoogieIcfgContainer [2021-11-25 18:00:11,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:00:11,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:00:11,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:00:11,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:00:11,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:00:10" (1/3) ... [2021-11-25 18:00:11,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7494a76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:00:11, skipping insertion in model container [2021-11-25 18:00:11,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:10" (2/3) ... [2021-11-25 18:00:11,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7494a76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:00:11, skipping insertion in model container [2021-11-25 18:00:11,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:00:11" (3/3) ... [2021-11-25 18:00:11,420 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_6-1.c [2021-11-25 18:00:11,426 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:00:11,426 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:00:11,492 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:00:11,504 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:00:11,504 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:00:11,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:00:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 18:00:11,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:11,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 18:00:11,534 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:00:11,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:11,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1858063, now seen corresponding path program 1 times [2021-11-25 18:00:11,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:11,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321124128] [2021-11-25 18:00:11,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:11,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:11,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:00:11,912 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:11,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321124128] [2021-11-25 18:00:11,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321124128] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:11,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:11,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:00:11,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616753983] [2021-11-25 18:00:11,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:11,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:00:11,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:11,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:00:11,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:00:11,980 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:00:12,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:12,032 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2021-11-25 18:00:12,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:00:12,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-25 18:00:12,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:12,046 INFO L225 Difference]: With dead ends: 14 [2021-11-25 18:00:12,046 INFO L226 Difference]: Without dead ends: 8 [2021-11-25 18:00:12,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:00:12,056 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:12,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:00:12,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-25 18:00:12,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-25 18:00:12,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:00:12,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-11-25 18:00:12,090 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2021-11-25 18:00:12,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:12,090 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-11-25 18:00:12,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:00:12,092 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-11-25 18:00:12,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 18:00:12,093 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:12,093 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-11-25 18:00:12,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:00:12,095 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:00:12,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:12,097 INFO L85 PathProgramCache]: Analyzing trace with hash -476212643, now seen corresponding path program 1 times [2021-11-25 18:00:12,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:12,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626812946] [2021-11-25 18:00:12,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:12,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:12,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:00:12,286 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:12,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626812946] [2021-11-25 18:00:12,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626812946] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:00:12,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388602688] [2021-11-25 18:00:12,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:12,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:00:12,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:00:12,289 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:00:12,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:00:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:12,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-25 18:00:12,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:00:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:00:12,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:00:19,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:00:19,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388602688] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:00:19,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1642987436] [2021-11-25 18:00:19,182 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-25 18:00:19,183 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:00:19,188 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:00:19,194 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:00:19,195 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:00:19,681 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:00:25,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1642987436] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:25,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:00:25,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4, 4] total 10 [2021-11-25 18:00:25,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674765601] [2021-11-25 18:00:25,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:25,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:00:25,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:25,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:00:25,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=68, Unknown=3, NotChecked=0, Total=110 [2021-11-25 18:00:25,247 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:00:25,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:25,321 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2021-11-25 18:00:25,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:00:25,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 18:00:25,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:25,322 INFO L225 Difference]: With dead ends: 8 [2021-11-25 18:00:25,322 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 18:00:25,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=39, Invalid=68, Unknown=3, NotChecked=0, Total=110 [2021-11-25 18:00:25,325 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:25,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:00:25,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 18:00:25,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 18:00:25,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:00:25,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 18:00:25,327 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-11-25 18:00:25,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:25,327 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 18:00:25,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:00:25,327 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 18:00:25,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 18:00:25,329 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 18:00:25,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 18:00:25,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-25 18:00:25,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 18:00:26,116 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 18:00:26,117 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-11-25 18:00:26,117 INFO L854 garLoopResultBuilder]: At program point L15-2(lines 14 19) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= (mod (* |ULTIMATE.start_main_~y~0#1| 3) (- 4)) 0) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (not (= 4 (mod (+ |ULTIMATE.start_main_~z~0#1| (* |ULTIMATE.start_main_~x~0#1| 4) (* |ULTIMATE.start_main_~y~0#1| 2)) 4294967296))) 1 0)) (= (mod |ULTIMATE.start_main_~x~0#1| (- 2)) 0) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= 0 (mod (* |ULTIMATE.start_main_~z~0#1| 7) (- 8))) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2021-11-25 18:00:26,117 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 18:00:26,118 INFO L854 garLoopResultBuilder]: At program point L28-2(lines 28 35) the Hoare annotation is: (let ((.cse12 (select |#memory_int| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= 11 (select |#length| 2))) (.cse2 (= 2 (select |#length| 1))) (.cse3 (= (select |#valid| 3) 1)) (.cse4 (= (select |#valid| 1) 1)) (.cse5 (= (select |#valid| 0) 0)) (.cse6 (= (select |#valid| 2) 1)) (.cse7 (= |#NULL.offset| 0)) (.cse8 (= (select .cse12 0) 48)) (.cse9 (= (select .cse12 1) 0)) (.cse10 (< 0 |#StackHeapBarrier|)) (.cse11 (= |#NULL.base| 0))) (or (and .cse0 (= (mod (* |ULTIMATE.start_main_~y~0#1| 3) (- 4)) 0) .cse1 .cse2 .cse3 (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (not (= 4 (mod (+ |ULTIMATE.start_main_~z~0#1| (* |ULTIMATE.start_main_~x~0#1| 4) (* |ULTIMATE.start_main_~y~0#1| 2)) 4294967296))) 1 0)) (= (mod |ULTIMATE.start_main_~x~0#1| (- 2)) 0) .cse4 .cse5 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) .cse6 .cse7 .cse8 (= 0 (mod (* |ULTIMATE.start_main_~z~0#1| 7) (- 8))) .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~y~0#1| 0) .cse4 (= |ULTIMATE.start_main_~z~0#1| 0) .cse5 .cse6 .cse7 .cse8 (= |ULTIMATE.start_main_~x~0#1| 0) .cse9 .cse10 .cse11)))) [2021-11-25 18:00:26,118 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-11-25 18:00:26,118 INFO L858 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2021-11-25 18:00:26,120 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-25 18:00:26,122 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:00:26,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:00:26 BoogieIcfgContainer [2021-11-25 18:00:26,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:00:26,143 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:00:26,143 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:00:26,143 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:00:26,144 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:00:11" (3/4) ... [2021-11-25 18:00:26,146 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 18:00:26,154 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-25 18:00:26,155 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-25 18:00:26,155 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-25 18:00:26,155 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 18:00:26,176 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((unknown-#length-unknown[3] == 12 && y * 3 % -4 == 0) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \old(cond) == (if !(4 == (z + x * 4 + y * 2) % 4294967296) then 1 else 0)) && x % -2 == 0) && \valid[1] == 1) && \valid[0] == 0) && cond == \old(cond)) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 0 == z * 7 % -8) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((unknown-#length-unknown[3] == 12 && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && y == 0) && \valid[1] == 1) && z == 0) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && x == 0) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2021-11-25 18:00:26,177 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((unknown-#length-unknown[3] == 12 && y * 3 % -4 == 0) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \old(cond) == (if !(4 == (z + x * 4 + y * 2) % 4294967296) then 1 else 0)) && x % -2 == 0) && \valid[1] == 1) && \valid[0] == 0) && cond == \old(cond)) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 0 == z * 7 % -8) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 [2021-11-25 18:00:26,183 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 18:00:26,184 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:00:26,184 INFO L158 Benchmark]: Toolchain (without parser) took 15519.39ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 88.4MB in the beginning and 58.3MB in the end (delta: 30.1MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. [2021-11-25 18:00:26,185 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:00:26,185 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.98ms. Allocated memory is still 125.8MB. Free memory was 88.3MB in the beginning and 99.7MB in the end (delta: -11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 18:00:26,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.82ms. Allocated memory is still 125.8MB. Free memory was 99.2MB in the beginning and 98.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:00:26,186 INFO L158 Benchmark]: Boogie Preprocessor took 37.49ms. Allocated memory is still 125.8MB. Free memory was 98.1MB in the beginning and 97.1MB in the end (delta: 997.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:00:26,186 INFO L158 Benchmark]: RCFGBuilder took 349.88ms. Allocated memory is still 125.8MB. Free memory was 97.1MB in the beginning and 87.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 18:00:26,187 INFO L158 Benchmark]: TraceAbstraction took 14731.34ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 87.1MB in the beginning and 60.4MB in the end (delta: 26.7MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2021-11-25 18:00:26,187 INFO L158 Benchmark]: Witness Printer took 40.84ms. Allocated memory is still 151.0MB. Free memory was 60.4MB in the beginning and 58.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:00:26,189 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.98ms. Allocated memory is still 125.8MB. Free memory was 88.3MB in the beginning and 99.7MB in the end (delta: -11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.82ms. Allocated memory is still 125.8MB. Free memory was 99.2MB in the beginning and 98.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.49ms. Allocated memory is still 125.8MB. Free memory was 98.1MB in the beginning and 97.1MB in the end (delta: 997.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 349.88ms. Allocated memory is still 125.8MB. Free memory was 97.1MB in the beginning and 87.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 14731.34ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 87.1MB in the beginning and 60.4MB in the end (delta: 26.7MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. * Witness Printer took 40.84ms. Allocated memory is still 151.0MB. Free memory was 60.4MB in the beginning and 58.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 5 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 11.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=1, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 267 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 116 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 4 QuantifiedInterpolants, 266 SizeOfPredicates, 10 NumberOfNonLiveVariables, 56 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 0.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 6, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 9, TOOLS_POST_TIME: 0.4s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 9, TOOLS_QUANTIFIERELIM_TIME: 0.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 17, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 2, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 6, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 54, DAG_COMPRESSION_RETAINED_NODES: 22, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((((((((((((((unknown-#length-unknown[3] == 12 && y * 3 % -4 == 0) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \old(cond) == (if !(4 == (z + x * 4 + y * 2) % 4294967296) then 1 else 0)) && x % -2 == 0) && \valid[1] == 1) && \valid[0] == 0) && cond == \old(cond)) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 0 == z * 7 % -8) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((unknown-#length-unknown[3] == 12 && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && y == 0) && \valid[1] == 1) && z == 0) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && x == 0) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((((((((unknown-#length-unknown[3] == 12 && y * 3 % -4 == 0) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \old(cond) == (if !(4 == (z + x * 4 + y * 2) % 4294967296) then 1 else 0)) && x % -2 == 0) && \valid[1] == 1) && \valid[0] == 0) && cond == \old(cond)) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 0 == z * 7 % -8) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2021-11-25 18:00:26,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b259f0b-c5c7-4cbb-a495-05ee5f65b8e7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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