./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/phases_1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-acceleration/phases_1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P --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 4f868671c12bae02e06798527bc7c1ed7b8332d3fee83b3ff24f9cd503da0a60 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:02:56,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:02:56,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:02:56,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:02:56,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:02:56,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:02:56,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:02:56,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:02:56,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:02:56,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:02:56,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:02:56,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:02:56,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:02:56,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:02:56,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:02:56,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:02:56,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:02:56,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:02:56,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:02:56,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:02:56,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:02:56,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:02:56,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:02:56,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:02:56,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:02:56,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:02:56,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:02:56,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:02:56,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:02:56,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:02:56,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:02:56,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:02:56,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:02:56,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:02:56,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:02:56,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:02:56,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:02:56,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:02:56,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:02:56,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:02:56,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:02:56,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 00:02:57,046 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:02:57,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:02:57,047 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:02:57,048 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:02:57,053 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:02:57,053 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:02:57,054 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:02:57,054 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:02:57,054 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:02:57,055 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:02:57,056 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:02:57,056 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:02:57,057 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:02:57,057 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:02:57,057 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:02:57,058 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:02:57,058 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:02:57,058 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:02:57,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:02:57,060 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:02:57,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:02:57,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:02:57,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:02:57,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:02:57,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:02:57,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:02:57,064 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:02:57,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:02:57,065 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:02:57,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:02:57,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:02:57,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:02:57,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:02:57,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:02:57,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:02:57,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:02:57,068 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:02:57,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:02:57,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:02:57,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:02:57,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:02:57,069 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_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f868671c12bae02e06798527bc7c1ed7b8332d3fee83b3ff24f9cd503da0a60 [2021-11-21 00:02:57,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:02:57,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:02:57,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:02:57,460 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:02:57,461 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:02:57,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/loop-acceleration/phases_1-2.c [2021-11-21 00:02:57,568 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/data/09fa4d163/0b40d39815ad481e873a250f359d01be/FLAG1f6fb8182 [2021-11-21 00:02:58,131 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:02:58,133 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/sv-benchmarks/c/loop-acceleration/phases_1-2.c [2021-11-21 00:02:58,146 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/data/09fa4d163/0b40d39815ad481e873a250f359d01be/FLAG1f6fb8182 [2021-11-21 00:02:58,455 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/data/09fa4d163/0b40d39815ad481e873a250f359d01be [2021-11-21 00:02:58,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:02:58,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:02:58,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:02:58,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:02:58,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:02:58,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:58,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d506b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58, skipping insertion in model container [2021-11-21 00:02:58,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:58,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:02:58,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:02:58,729 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_484a54e6-d6b2-4c5a-b223-3429b6889be1/sv-benchmarks/c/loop-acceleration/phases_1-2.c[322,335] [2021-11-21 00:02:58,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:02:58,751 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:02:58,766 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_484a54e6-d6b2-4c5a-b223-3429b6889be1/sv-benchmarks/c/loop-acceleration/phases_1-2.c[322,335] [2021-11-21 00:02:58,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:02:58,787 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:02:58,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58 WrapperNode [2021-11-21 00:02:58,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:02:58,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:02:58,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:02:58,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:02:58,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:58,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:58,828 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2021-11-21 00:02:58,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:02:58,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:02:58,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:02:58,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:02:58,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:58,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:58,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:58,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:58,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:58,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:58,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:58,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:02:58,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:02:58,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:02:58,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:02:58,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (1/1) ... [2021-11-21 00:02:58,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:02:58,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:02:58,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:02:58,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:02:58,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:02:58,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:02:58,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:02:58,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:02:59,022 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:02:59,024 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:02:59,139 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:02:59,170 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:02:59,170 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 00:02:59,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:02:59 BoogieIcfgContainer [2021-11-21 00:02:59,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:02:59,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:02:59,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:02:59,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:02:59,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:02:58" (1/3) ... [2021-11-21 00:02:59,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd8fcaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:02:59, skipping insertion in model container [2021-11-21 00:02:59,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:02:58" (2/3) ... [2021-11-21 00:02:59,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd8fcaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:02:59, skipping insertion in model container [2021-11-21 00:02:59,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:02:59" (3/3) ... [2021-11-21 00:02:59,184 INFO L111 eAbstractionObserver]: Analyzing ICFG phases_1-2.c [2021-11-21 00:02:59,191 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:02:59,191 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:02:59,282 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:02:59,300 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 [2021-11-21 00:02:59,300 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:02:59,328 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) [2021-11-21 00:02:59,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 00:02:59,356 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:02:59,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 00:02:59,358 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:02:59,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:02:59,365 INFO L85 PathProgramCache]: Analyzing trace with hash 2037129, now seen corresponding path program 1 times [2021-11-21 00:02:59,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:02:59,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736079738] [2021-11-21 00:02:59,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:02:59,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:02:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:02:59,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:59,623 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:02:59,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736079738] [2021-11-21 00:02:59,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736079738] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:02:59,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:02:59,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:02:59,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979926344] [2021-11-21 00:02:59,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:02:59,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:02:59,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:02:59,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:02:59,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:02:59,695 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 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) [2021-11-21 00:02:59,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:02:59,752 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-11-21 00:02:59,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:02:59,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 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 [2021-11-21 00:02:59,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:02:59,765 INFO L225 Difference]: With dead ends: 13 [2021-11-21 00:02:59,766 INFO L226 Difference]: Without dead ends: 6 [2021-11-21 00:02:59,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:02:59,774 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:02:59,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:02:59,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2021-11-21 00:02:59,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-11-21 00:02:59,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2021-11-21 00:02:59,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2021-11-21 00:02:59,812 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2021-11-21 00:02:59,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:02:59,812 INFO L470 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2021-11-21 00:02:59,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 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) [2021-11-21 00:02:59,813 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2021-11-21 00:02:59,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 00:02:59,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:02:59,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 00:02:59,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:02:59,814 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:02:59,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:02:59,816 INFO L85 PathProgramCache]: Analyzing trace with hash 63108679, now seen corresponding path program 1 times [2021-11-21 00:02:59,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:02:59,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469908781] [2021-11-21 00:02:59,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:02:59,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:02:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:02:59,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:02:59,951 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:02:59,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469908781] [2021-11-21 00:02:59,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469908781] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:02:59,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293215661] [2021-11-21 00:02:59,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:02:59,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:02:59,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:02:59,955 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:02:59,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:03:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:03:00,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:03:00,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:03:00,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:03:00,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:03:00,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:03:00,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293215661] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:03:00,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [464566835] [2021-11-21 00:03:00,849 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-21 00:03:00,849 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:03:00,860 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:03:00,867 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:03:00,868 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:03:02,024 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:03:02,160 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 00:03:02,160 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 00:03:02,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 4] total 7 [2021-11-21 00:03:02,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173461832] [2021-11-21 00:03:02,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 00:03:02,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:03:02,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:03:02,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:03:02,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-21 00:03:02,164 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-11-21 00:03:02,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:03:02,449 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2021-11-21 00:03:02,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 00:03:02,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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 5 [2021-11-21 00:03:02,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:03:02,451 INFO L225 Difference]: With dead ends: 14 [2021-11-21 00:03:02,451 INFO L226 Difference]: Without dead ends: 10 [2021-11-21 00:03:02,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-11-21 00:03:02,454 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:03:02,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 00:03:02,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-21 00:03:02,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-21 00:03:02,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2021-11-21 00:03:02,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-11-21 00:03:02,463 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-11-21 00:03:02,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:03:02,463 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-11-21 00:03:02,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-11-21 00:03:02,465 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-11-21 00:03:02,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 00:03:02,466 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:03:02,466 INFO L514 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1] [2021-11-21 00:03:02,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:03:02,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:03:02,674 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:03:02,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:03:02,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1818646841, now seen corresponding path program 2 times [2021-11-21 00:03:02,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:03:02,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744691945] [2021-11-21 00:03:02,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:03:02,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:03:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:03:02,908 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:03:02,908 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:03:02,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744691945] [2021-11-21 00:03:02,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744691945] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:03:02,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584841770] [2021-11-21 00:03:02,914 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-21 00:03:02,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:03:02,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:03:02,922 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:03:02,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:03:02,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-21 00:03:02,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:03:02,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-21 00:03:02,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:03:03,318 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:03:03,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:03:07,064 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:03:07,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584841770] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:03:07,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2001212313] [2021-11-21 00:03:07,067 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-21 00:03:07,067 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:03:07,068 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:03:07,068 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:03:07,068 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:03:07,978 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:03:08,924 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 00:03:08,924 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 00:03:08,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2021-11-21 00:03:08,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124877475] [2021-11-21 00:03:08,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 00:03:08,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-21 00:03:08,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:03:08,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-21 00:03:08,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2021-11-21 00:03:08,928 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 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) [2021-11-21 00:03:32,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:03:32,878 INFO L93 Difference]: Finished difference Result 22 states and 29 transitions. [2021-11-21 00:03:32,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-21 00:03:32,880 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 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 9 [2021-11-21 00:03:32,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:03:32,882 INFO L225 Difference]: With dead ends: 22 [2021-11-21 00:03:32,882 INFO L226 Difference]: Without dead ends: 18 [2021-11-21 00:03:32,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 24.9s TimeCoverageRelationStatistics Valid=199, Invalid=450, Unknown=1, NotChecked=0, Total=650 [2021-11-21 00:03:32,884 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 29 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:03:32,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 9 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-21 00:03:32,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-21 00:03:32,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-21 00:03:32,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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) [2021-11-21 00:03:32,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-11-21 00:03:32,892 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2021-11-21 00:03:32,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:03:32,893 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-11-21 00:03:32,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 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) [2021-11-21 00:03:32,893 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-11-21 00:03:32,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-21 00:03:32,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:03:32,895 INFO L514 BasicCegarLoop]: trace histogram [13, 1, 1, 1, 1] [2021-11-21 00:03:32,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:03:33,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:03:33,096 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:03:33,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:03:33,096 INFO L85 PathProgramCache]: Analyzing trace with hash -2013116473, now seen corresponding path program 3 times [2021-11-21 00:03:33,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:03:33,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738996009] [2021-11-21 00:03:33,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:03:33,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:03:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:03:33,581 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:03:33,582 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:03:33,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738996009] [2021-11-21 00:03:33,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738996009] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:03:33,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240831674] [2021-11-21 00:03:33,582 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-21 00:03:33,583 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:03:33,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:03:33,590 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:03:33,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484a54e6-d6b2-4c5a-b223-3429b6889be1/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:03:33,709 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-21 00:03:33,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:03:33,711 WARN L261 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-21 00:03:33,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:03:34,522 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:03:34,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:03:58,990 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:03:58,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240831674] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:03:58,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [539756101] [2021-11-21 00:03:58,994 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-11-21 00:03:58,994 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:03:58,994 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:03:58,995 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:03:58,995 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:03:59,665 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:04:00,824 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 00:04:00,825 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 00:04:00,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 31 [2021-11-21 00:04:00,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995869196] [2021-11-21 00:04:00,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 00:04:00,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-21 00:04:00,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:04:00,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-21 00:04:00,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2021-11-21 00:04:00,829 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 32 states, 32 states have (on average 1.09375) internal successors, (35), 31 states have internal predecessors, (35), 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) [2021-11-21 00:04:03,018 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (div |c_ULTIMATE.start_main_~x~0#1| 2)) (.cse0 (* |c_ULTIMATE.start_main_~x~0#1| (- 1))) (.cse2 (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296))) (and (or (<= (div (+ .cse0 (- 34359738387)) (- 4294967296)) (+ (div (+ (- 34628173805) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 17)) (<= (div (+ (- 38) .cse0) (- 2)) (+ 19 .cse1)) (<= (div (+ (- 38386270230) .cse0) (- 4294967296)) (+ 19 (div (+ (- 42949672940) |c_ULTIMATE.start_main_~x~0#1|) 4294967296)))) (or (<= (div (+ (- 47244640281) .cse0) (- 4294967296)) (+ 23 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 47513075687)) 4294967296))) (<= (div (+ .cse0 (- 50)) (- 2)) (+ .cse1 25)) (<= (div (+ (- 51271172124) .cse0) (- 4294967296)) (+ 25 (div (+ (- 55834574822) |c_ULTIMATE.start_main_~x~0#1|) 4294967296)))) (or (<= (div (+ (- 14) .cse0) (- 2)) (+ 7 .cse1)) (<= (div (+ .cse0 (- 8589934599)) (- 4294967296)) (+ (div (+ (- 8858370041) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 5)) (<= (div (+ .cse0 (- 12616466442)) (- 4294967296)) (+ 7 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 17179869176)) 4294967296)))) (or (<= (div (+ (- 3) .cse0) (- 4294967296)) (+ (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 268435453)) 4294967296) 1)) (<= (div (+ (- 6) .cse0) (- 2)) (+ .cse1 3)) (<= (div (+ (- 4026531846) .cse0) (- 4294967296)) (+ 3 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 8589934588)) 4294967296)))) (or (<= (div (+ .cse0 (- 46976204826)) (- 4294967296)) (+ (div (+ (- 51539607528) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 23)) (<= (div (+ (- 42949672983) .cse0) (- 4294967296)) (+ 21 (div (+ (- 43218108393) |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (<= (div (+ (- 46) .cse0) (- 2)) (+ 23 .cse1))) (or (<= (div (+ (- 29796335634) .cse0) (- 4294967296)) (+ 15 (div (+ (- 34359738352) |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (<= (div (+ .cse0 (- 25769803791)) (- 4294967296)) (+ (div (+ (- 26038239217) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 13)) (<= (div (+ .cse0 (- 30)) (- 2)) (+ .cse1 15))) (or (<= (div (+ (- 21474836493) .cse0) (- 4294967296)) (+ (div (+ (- 21743271923) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 11)) (<= (div (+ (- 26) .cse0) (- 2)) (+ .cse1 13)) (<= (div (+ .cse0 (- 25501368336)) (- 4294967296)) (+ (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 30064771058)) 4294967296) 13))) (or (<= (div (+ (- 42681237528) .cse0) (- 4294967296)) (+ (div (+ (- 47244640234) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 21)) (<= (div (+ .cse0 (- 38654705685)) (- 4294967296)) (+ (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 38923141099)) 4294967296) 19)) (<= (div (+ .cse0 (- 42)) (- 2)) (+ .cse1 21))) (or (<= (div (+ .cse0 (- 34091302932)) (- 4294967296)) (+ (div (+ (- 38654705646) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 17)) (<= (div (+ (- 30064771089) .cse0) (- 4294967296)) (+ 15 (div (+ (- 30333206511) |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (<= (div (+ (- 34) .cse0) (- 2)) (+ .cse1 17))) (or (<= 268435455 .cse2) (<= (div (+ 268435452 .cse0) (- 4294967296)) (+ (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 4294967294)) 4294967296) 1)) (<= (div (+ (- 2) .cse0) (- 2)) (+ .cse1 1))) (or (<= (div (+ (- 16911433740) .cse0) (- 4294967296)) (+ 9 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 21474836470)) 4294967296))) (<= (div (+ .cse0 (- 18)) (- 2)) (+ .cse1 9)) (<= (div (+ .cse0 (- 12884901897)) (- 4294967296)) (+ (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 13153337335)) 4294967296) 7))) (or (<= (div (+ (- 8321499144) .cse0) (- 4294967296)) (+ 5 (div (+ (- 12884901882) |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (<= (div (+ .cse0 (- 10)) (- 2)) (+ 5 .cse1)) (<= (div (+ (- 4294967301) .cse0) (- 4294967296)) (+ (div (+ (- 4563402747) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 3))) (or (<= (div (+ (- 22) .cse0) (- 2)) (+ .cse1 11)) (<= (div (+ (- 17179869195) .cse0) (- 4294967296)) (+ 9 (div (+ |c_ULTIMATE.start_main_~x~0#1| (- 17448304629)) 4294967296))) (<= (div (+ (- 21206401038) .cse0) (- 4294967296)) (+ (div (+ (- 25769803764) |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 11))) (or (< .cse2 268435455) (= (mod |c_ULTIMATE.start_main_~x~0#1| 2) 0)))) is different from false [2021-11-21 00:13:16,080 WARN L227 SmtUtils]: Spent 8.64m on a formula simplification. DAG size of input: 284 DAG size of output: 267 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 00:13:18,092 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:13:20,104 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []