./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.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_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/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_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/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_a96158a9-ff12-40a5-baf8-233902cb818d/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 de5a591efb40e891e226106d8590a7409596f3a27aca8b697af826abd4fe5201 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:47:27,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:47:27,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:47:27,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:47:27,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:47:27,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:47:27,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:47:27,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:47:27,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:47:27,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:47:27,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:47:27,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:47:27,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:47:27,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:47:27,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:47:27,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:47:27,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:47:27,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:47:27,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:47:27,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:47:27,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:47:27,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:47:27,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:47:27,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:47:27,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:47:27,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:47:27,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:47:27,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:47:27,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:47:27,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:47:27,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:47:27,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:47:27,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:47:27,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:47:27,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:47:27,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:47:27,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:47:27,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:47:27,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:47:27,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:47:27,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:47:27,784 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:47:27,842 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:47:27,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:47:27,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:47:27,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:47:27,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:47:27,852 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:47:27,852 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:47:27,852 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:47:27,853 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:47:27,853 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:47:27,858 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:47:27,858 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:47:27,859 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:47:27,859 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:47:27,859 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:47:27,860 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:47:27,860 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:47:27,860 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:47:27,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:47:27,862 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:47:27,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:47:27,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:47:27,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:47:27,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:47:27,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:47:27,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:47:27,866 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:47:27,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:47:27,867 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:47:27,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:47:27,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:47:27,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:47:27,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:47:27,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:47:27,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:47:27,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:47:27,869 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:47:27,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:47:27,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:47:27,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:47:27,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:47:27,870 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_a96158a9-ff12-40a5-baf8-233902cb818d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de5a591efb40e891e226106d8590a7409596f3a27aca8b697af826abd4fe5201 [2021-11-25 19:47:28,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:47:28,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:47:28,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:47:28,233 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:47:28,234 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:47:28,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2021-11-25 19:47:28,336 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/data/b7c3d4874/d5430194bc9c4622b882121b0a1e97d5/FLAG33c3bf461 [2021-11-25 19:47:28,983 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:47:28,983 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2021-11-25 19:47:28,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/data/b7c3d4874/d5430194bc9c4622b882121b0a1e97d5/FLAG33c3bf461 [2021-11-25 19:47:29,293 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/data/b7c3d4874/d5430194bc9c4622b882121b0a1e97d5 [2021-11-25 19:47:29,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:47:29,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:47:29,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:47:29,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:47:29,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:47:29,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:47:29" (1/1) ... [2021-11-25 19:47:29,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ad882a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:47:29, skipping insertion in model container [2021-11-25 19:47:29,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:47:29" (1/1) ... [2021-11-25 19:47:29,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:47:29,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:47:29,776 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_a96158a9-ff12-40a5-baf8-233902cb818d/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2021-11-25 19:47:29,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:47:29,802 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:47:29,913 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_a96158a9-ff12-40a5-baf8-233902cb818d/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2021-11-25 19:47:29,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:47:29,941 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:47:29,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:47:29 WrapperNode [2021-11-25 19:47:29,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:47:29,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:47:29,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:47:29,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:47:29,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:47:29" (1/1) ... [2021-11-25 19:47:29,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:47:29" (1/1) ... [2021-11-25 19:47:30,071 INFO L137 Inliner]: procedures = 17, calls = 293, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 772 [2021-11-25 19:47:30,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:47:30,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:47:30,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:47:30,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:47:30,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:47:29" (1/1) ... [2021-11-25 19:47:30,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:47:29" (1/1) ... [2021-11-25 19:47:30,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:47:29" (1/1) ... [2021-11-25 19:47:30,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:47:29" (1/1) ... [2021-11-25 19:47:30,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:47:29" (1/1) ... [2021-11-25 19:47:30,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:47:29" (1/1) ... [2021-11-25 19:47:30,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:47:29" (1/1) ... [2021-11-25 19:47:30,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:47:30,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:47:30,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:47:30,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:47:30,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:47:29" (1/1) ... [2021-11-25 19:47:30,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:47:30,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:47:30,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:47:30,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:47:30,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:47:30,294 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-11-25 19:47:30,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:47:30,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:47:30,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:47:30,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:47:30,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:47:30,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:47:30,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:47:30,444 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:47:30,446 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:47:31,536 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:47:31,554 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:47:31,555 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 19:47:31,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:47:31 BoogieIcfgContainer [2021-11-25 19:47:31,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:47:31,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:47:31,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:47:31,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:47:31,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:47:29" (1/3) ... [2021-11-25 19:47:31,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1601940d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:47:31, skipping insertion in model container [2021-11-25 19:47:31,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:47:29" (2/3) ... [2021-11-25 19:47:31,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1601940d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:47:31, skipping insertion in model container [2021-11-25 19:47:31,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:47:31" (3/3) ... [2021-11-25 19:47:31,582 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2021-11-25 19:47:31,589 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:47:31,589 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:47:31,645 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:47:31,654 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 19:47:31,655 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:47:31,673 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.934782608695652) internal successors, (89), 47 states have internal predecessors, (89), 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 19:47:31,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-25 19:47:31,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:47:31,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:47:31,684 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:47:31,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:47:31,691 INFO L85 PathProgramCache]: Analyzing trace with hash -352673803, now seen corresponding path program 1 times [2021-11-25 19:47:31,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:47:31,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589520220] [2021-11-25 19:47:31,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:47:31,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:47:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:47:32,927 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 19:47:32,928 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:47:32,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589520220] [2021-11-25 19:47:32,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589520220] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:47:32,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:47:32,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-25 19:47:32,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579864991] [2021-11-25 19:47:32,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:47:32,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-25 19:47:32,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:47:32,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-25 19:47:32,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-11-25 19:47:32,983 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.934782608695652) internal successors, (89), 47 states have internal predecessors, (89), 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 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 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 19:47:33,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:47:33,930 INFO L93 Difference]: Finished difference Result 81 states and 115 transitions. [2021-11-25 19:47:33,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 19:47:33,933 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 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 43 [2021-11-25 19:47:33,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:47:33,943 INFO L225 Difference]: With dead ends: 81 [2021-11-25 19:47:33,949 INFO L226 Difference]: Without dead ends: 52 [2021-11-25 19:47:33,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-11-25 19:47:33,969 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 90 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:47:33,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 461 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 19:47:34,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-25 19:47:34,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2021-11-25 19:47:34,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 48 states have internal predecessors, (49), 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 19:47:34,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2021-11-25 19:47:34,069 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 43 [2021-11-25 19:47:34,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:47:34,071 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2021-11-25 19:47:34,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 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 19:47:34,071 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2021-11-25 19:47:34,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-25 19:47:34,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:47:34,074 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:47:34,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:47:34,075 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:47:34,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:47:34,076 INFO L85 PathProgramCache]: Analyzing trace with hash -530558132, now seen corresponding path program 1 times [2021-11-25 19:47:34,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:47:34,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552440775] [2021-11-25 19:47:34,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:47:34,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:47:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:47:34,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:47:34,812 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:47:34,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552440775] [2021-11-25 19:47:34,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552440775] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:47:34,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065764777] [2021-11-25 19:47:34,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:47:34,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:47:34,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:47:34,820 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:47:34,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:47:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:47:35,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-25 19:47:35,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:47:35,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:47:35,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:47:36,402 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:47:36,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065764777] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:47:36,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [981504801] [2021-11-25 19:47:36,450 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2021-11-25 19:47:36,455 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:47:36,463 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:47:36,472 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:47:36,473 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:47:36,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:47:37,043 INFO L354 Elim1Store]: treesize reduction 252, result has 33.5 percent of original size [2021-11-25 19:47:37,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 122 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 28 case distinctions, treesize of input 92 treesize of output 193 [2021-11-25 19:47:37,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:47:37,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 121 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 126 [2021-11-25 19:47:38,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 820 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 370 treesize of output 450 [2021-11-25 19:47:38,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:47:38,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:47:38,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:47:38,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:47:38,558 INFO L354 Elim1Store]: treesize reduction 234, result has 33.5 percent of original size [2021-11-25 19:47:38,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 140 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 26 case distinctions, treesize of input 97 treesize of output 197 [2021-11-25 19:47:38,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:47:38,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:47:38,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:47:38,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:47:38,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 138 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 134 [2021-11-25 19:47:39,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 820 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 370 treesize of output 450 [2021-11-25 19:48:01,344 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:48:13,792 WARN L227 SmtUtils]: Spent 9.47s on a formula simplification. DAG size of input: 1061 DAG size of output: 1003 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:48:23,899 WARN L227 SmtUtils]: Spent 9.64s on a formula simplification. DAG size of input: 1071 DAG size of output: 1009 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:48:34,423 WARN L227 SmtUtils]: Spent 10.03s on a formula simplification. DAG size of input: 1088 DAG size of output: 1026 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:48:44,696 WARN L227 SmtUtils]: Spent 9.63s on a formula simplification. DAG size of input: 1081 DAG size of output: 1015 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:48:55,031 WARN L227 SmtUtils]: Spent 9.81s on a formula simplification. DAG size of input: 1090 DAG size of output: 1021 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:49:05,827 WARN L227 SmtUtils]: Spent 10.15s on a formula simplification. DAG size of input: 1107 DAG size of output: 1038 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:49:16,549 WARN L227 SmtUtils]: Spent 10.11s on a formula simplification. DAG size of input: 1113 DAG size of output: 1039 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:49:27,624 WARN L227 SmtUtils]: Spent 10.50s on a formula simplification. DAG size of input: 1121 DAG size of output: 1045 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:49:39,088 WARN L227 SmtUtils]: Spent 10.84s on a formula simplification. DAG size of input: 1136 DAG size of output: 1059 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:49:50,745 WARN L227 SmtUtils]: Spent 11.01s on a formula simplification. DAG size of input: 1142 DAG size of output: 1060 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:50:02,801 WARN L227 SmtUtils]: Spent 11.37s on a formula simplification. DAG size of input: 1150 DAG size of output: 1066 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:50:15,086 WARN L227 SmtUtils]: Spent 11.58s on a formula simplification. DAG size of input: 1165 DAG size of output: 1080 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:50:27,928 WARN L227 SmtUtils]: Spent 12.02s on a formula simplification. DAG size of input: 1169 DAG size of output: 1079 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:50:40,677 WARN L227 SmtUtils]: Spent 11.90s on a formula simplification. DAG size of input: 1177 DAG size of output: 1085 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:50:53,998 WARN L227 SmtUtils]: Spent 12.36s on a formula simplification. DAG size of input: 1192 DAG size of output: 1099 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:51:07,164 WARN L227 SmtUtils]: Spent 12.20s on a formula simplification. DAG size of input: 1196 DAG size of output: 1098 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:51:20,768 WARN L227 SmtUtils]: Spent 12.58s on a formula simplification. DAG size of input: 1204 DAG size of output: 1104 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:51:34,160 WARN L227 SmtUtils]: Spent 12.36s on a formula simplification. DAG size of input: 1219 DAG size of output: 1118 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:51:45,674 WARN L227 SmtUtils]: Spent 10.72s on a formula simplification. DAG size of input: 1223 DAG size of output: 1117 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:51:57,889 WARN L227 SmtUtils]: Spent 11.38s on a formula simplification. DAG size of input: 1231 DAG size of output: 1123 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:52:10,605 WARN L227 SmtUtils]: Spent 11.82s on a formula simplification. DAG size of input: 1246 DAG size of output: 1137 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:52:23,487 WARN L227 SmtUtils]: Spent 11.95s on a formula simplification. DAG size of input: 1250 DAG size of output: 1136 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:52:37,126 WARN L227 SmtUtils]: Spent 12.67s on a formula simplification. DAG size of input: 1258 DAG size of output: 1142 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:52:50,406 WARN L227 SmtUtils]: Spent 12.25s on a formula simplification. DAG size of input: 1273 DAG size of output: 1156 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:53:04,485 WARN L227 SmtUtils]: Spent 13.06s on a formula simplification. DAG size of input: 1278 DAG size of output: 1156 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:53:20,170 WARN L227 SmtUtils]: Spent 14.62s on a formula simplification. DAG size of input: 1286 DAG size of output: 1162 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:53:34,993 WARN L227 SmtUtils]: Spent 13.69s on a formula simplification. DAG size of input: 1301 DAG size of output: 1176 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:53:39,916 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '541#(and (<= |ULTIMATE.start_main_~__tmp_9~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_6~0#1| 1) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~4#1|) (<= 0 ~__tmp_1075_2~0.base) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~2#1|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~7#1| 1) (<= 1 ~__tmp_1075_1~0) (<= 0 |ULTIMATE.start_main_~__tmp_1~0#1.offset|) (<= 4 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~4#1|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~1#1| 1) (<= |ULTIMATE.start_main_~__tmp_3~0#1| 1) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~4#1.base|) (<= 0 |ULTIMATE.start_main_~main__Id_MCDC_116~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_1~0#1.base|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~1#1| 1) (<= 0 |ULTIMATE.start_main_~#main__Id_MCDC_119~0#1.base|) (<= ~__tmp_1075_1~0 1) (<= |ULTIMATE.start_main_~__tmp_8~0#1| 1) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~8#1| 1) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~0#1.offset|) (<= |ULTIMATE.start_main_~__tmp_7~0#1| 1) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~0#1|) (<= 1 |ULTIMATE.start_main_~__tmp_9~0#1|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~4#1| 1) (<= |ULTIMATE.start_main_~__tmp_1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~1#1.base|) (<= |ULTIMATE.start_main_~main__Id_MCDC_115~0#1| 0) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~5#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~3#1| 1) (<= |ULTIMATE.start_main_~__tmp_10~0#1| 1) (<= 0 |ULTIMATE.start_main_~main__Id_MCDC_115~0#1|) (<= |ULTIMATE.start_main_~__tmp_5~0#1| 1) (<= 2 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~2#1|) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~3#1|) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~6#1.base|) (<= 1 |ULTIMATE.start_main_~__tmp_10~0#1|) (= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~10#1| 0) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~5#1|) (<= |#NULL.offset| 0) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~7#1|) (<= 1 |ULTIMATE.start_main_~__tmp_6~0#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~6#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~5#1| 1) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~3#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~4#1| 1) (<= 8 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~8#1|) (<= ~__return_main~0 0) (<= 1 |ULTIMATE.start_main_~__tmp_7~0#1|) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~6#1|) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~8#1.base|) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~0#1.base|) (<= 5 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~5#1|) (<= 3 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~3#1|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~2#1| 1) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~0#1| 0) (<= 1 |ULTIMATE.start_main_~__tmp_3~0#1|) (<= 1 |ULTIMATE.start_main_~__tmp_5~0#1|) (<= 0 |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset|) (<= 0 |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.base|) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~3#1|) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~2#1|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~6#1| 6) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~6#1| 1) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_88~0#1.base|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~5#1| 5) (<= 1 |ULTIMATE.start_main_~__tmp_8~0#1|) (<= 1 |ULTIMATE.start_main_~__tmp_4~0#1|) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~main__Id_MCDC_116~0#1| 0) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~3#1.base|) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~7#1|) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~2#1.base|) (<= |ULTIMATE.start_main_~__tmp_4~0#1| 1) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~0#1|) (<= 1 |ULTIMATE.start_main_~__tmp_2~0#1|) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~4#1|) (<= 0 |ULTIMATE.start_main_~#main__Id_MCDC_119~0#1.offset|) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_88~0#1.offset|) (<= 0 ~__return_main~0) (= |ULTIMATE.start_main_~__tmp_12~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~10#1|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~4#1| 4) (<= |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_88~0#1.offset| 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~7#1| 1) (<= 6 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~6#1|) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~5#1.base|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~0#1| 1) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~1#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~8#1| 1) (<= 7 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~7#1|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~2#1| 2) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~6#1|) (<= |ULTIMATE.start_main_~__tmp_2~0#1| 1) (<= 42 (mod ~Id_MCDC_93~0 4294967296)) (<= 9 ~Id_MCDC_93~0) (<= 8 ~__tmp_1075_0~0) (<= 0 |#NULL.offset|) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~1#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~0#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~2#1| 1) (<= 9 |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1|) (<= |ULTIMATE.start_main_~#main__Id_MCDC_119~0#1.offset| 0) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~1#1| 1) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~5#1| 1) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~1#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~9#1| 0) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~7#1| 7) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~8#1|) (<= |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset| 0) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~3#1| 3) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~7#1.base|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~0#1.offset| 0) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~0#1|) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~8#1|))' at error location [2021-11-25 19:53:39,916 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:53:39,916 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 19:53:39,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14, 14] total 32 [2021-11-25 19:53:39,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669349930] [2021-11-25 19:53:39,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 19:53:39,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-25 19:53:39,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:53:39,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-25 19:53:39,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=753, Invalid=3407, Unknown=0, NotChecked=0, Total=4160 [2021-11-25 19:53:39,923 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand has 32 states, 32 states have (on average 3.625) internal successors, (116), 32 states have internal predecessors, (116), 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 19:53:47,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:53:47,364 INFO L93 Difference]: Finished difference Result 114 states and 125 transitions. [2021-11-25 19:53:47,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-25 19:53:47,365 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.625) internal successors, (116), 32 states have internal predecessors, (116), 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 48 [2021-11-25 19:53:47,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:53:47,367 INFO L225 Difference]: With dead ends: 114 [2021-11-25 19:53:47,367 INFO L226 Difference]: Without dead ends: 111 [2021-11-25 19:53:47,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 94 SyntacticMatches, 4 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2640 ImplicationChecksByTransitivity, 345.9s TimeCoverageRelationStatistics Valid=1491, Invalid=5481, Unknown=0, NotChecked=0, Total=6972 [2021-11-25 19:53:47,373 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 548 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:53:47,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 194 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 19:53:47,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-25 19:53:47,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2021-11-25 19:53:47,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.0092592592592593) internal successors, (109), 108 states have internal predecessors, (109), 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 19:53:47,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2021-11-25 19:53:47,387 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 48 [2021-11-25 19:53:47,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:53:47,388 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2021-11-25 19:53:47,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.625) internal successors, (116), 32 states have internal predecessors, (116), 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 19:53:47,388 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2021-11-25 19:53:47,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-25 19:53:47,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:53:47,393 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:53:47,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 19:53:47,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:53:47,609 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:53:47,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:53:47,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1651985676, now seen corresponding path program 2 times [2021-11-25 19:53:47,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:53:47,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708483329] [2021-11-25 19:53:47,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:53:47,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:53:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:53:48,432 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:53:48,432 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:53:48,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708483329] [2021-11-25 19:53:48,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708483329] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:53:48,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090907149] [2021-11-25 19:53:48,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:53:48,433 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:53:48,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:53:48,439 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:53:48,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 19:53:49,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 19:53:49,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:53:49,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-25 19:53:49,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:53:50,228 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:53:50,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2021-11-25 19:53:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 36 proven. 51 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2021-11-25 19:53:50,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:53:54,703 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2021-11-25 19:53:54,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090907149] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:53:54,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [593345268] [2021-11-25 19:53:54,708 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2021-11-25 19:53:54,708 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:53:54,708 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:53:54,709 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:53:54,709 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:53:54,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:53:55,027 INFO L354 Elim1Store]: treesize reduction 252, result has 33.5 percent of original size [2021-11-25 19:53:55,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 122 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 28 case distinctions, treesize of input 92 treesize of output 193 [2021-11-25 19:53:55,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:53:55,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 121 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 126 [2021-11-25 19:53:55,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 820 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 370 treesize of output 450 [2021-11-25 19:53:55,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:53:55,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:53:55,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:53:55,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:53:55,705 INFO L354 Elim1Store]: treesize reduction 130, result has 47.6 percent of original size [2021-11-25 19:53:55,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 125 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 13 case distinctions, treesize of input 87 treesize of output 186 [2021-11-25 19:53:55,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 820 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 370 treesize of output 450 [2021-11-25 19:53:55,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:53:56,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:53:56,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:53:56,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:53:56,275 INFO L354 Elim1Store]: treesize reduction 234, result has 33.5 percent of original size [2021-11-25 19:53:56,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 140 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 26 case distinctions, treesize of input 97 treesize of output 197 [2021-11-25 19:53:56,381 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 14 [2021-11-25 19:53:56,391 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 14 [2021-11-25 19:54:05,593 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 14 [2021-11-25 19:54:05,620 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:54:48,220 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1550#(and (<= |ULTIMATE.start_main_~__tmp_9~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_6~0#1| 1) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~4#1|) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~2#1|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~7#1| 1) (<= 1 ~__tmp_1075_1~0) (<= 0 |ULTIMATE.start_main_~__tmp_1~0#1.offset|) (= ~__tmp_1075_2~0.offset |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~8#1.offset|) (<= 4 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~4#1|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~1#1| 1) (<= |ULTIMATE.start_main_~__tmp_3~0#1| 1) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~4#1.base|) (<= 0 |ULTIMATE.start_main_~main__Id_MCDC_116~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_1~0#1.base|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~1#1| 1) (<= 0 |ULTIMATE.start_main_~#main__Id_MCDC_119~0#1.base|) (<= ~__tmp_1075_1~0 1) (<= |ULTIMATE.start_main_~__tmp_8~0#1| 1) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~8#1| 1) (<= |ULTIMATE.start_main_~__tmp_7~0#1| 1) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~0#1|) (<= 1 |ULTIMATE.start_main_~__tmp_9~0#1|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~4#1| 1) (<= |ULTIMATE.start_main_~__tmp_1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~1#1.base|) (<= |ULTIMATE.start_main_~main__Id_MCDC_115~0#1| 0) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~5#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~3#1| 1) (<= |ULTIMATE.start_main_~__tmp_10~0#1| 1) (<= 0 |ULTIMATE.start_main_~main__Id_MCDC_115~0#1|) (<= |ULTIMATE.start_main_~__tmp_5~0#1| 1) (<= 2 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~2#1|) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~3#1|) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~6#1.base|) (<= 1 |ULTIMATE.start_main_~__tmp_10~0#1|) (= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~10#1| 0) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~5#1|) (<= |#NULL.offset| 0) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~7#1|) (<= 1 |ULTIMATE.start_main_~__tmp_6~0#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~6#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~5#1| 1) (= ~__tmp_1075_0~0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~8#1|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~3#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~4#1| 1) (<= ~__return_main~0 0) (<= 1 |ULTIMATE.start_main_~__tmp_7~0#1|) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~6#1|) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~8#1.base|) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~0#1.base|) (<= 5 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~5#1|) (<= 3 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~3#1|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~2#1| 1) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~0#1| 0) (<= 1 |ULTIMATE.start_main_~__tmp_3~0#1|) (<= 1 |ULTIMATE.start_main_~__tmp_5~0#1|) (<= 0 |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset|) (<= 0 |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.base|) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~3#1|) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~2#1|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~6#1| 6) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~6#1| 1) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_88~0#1.base|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~5#1| 5) (<= 1 |ULTIMATE.start_main_~__tmp_8~0#1|) (<= 1 |ULTIMATE.start_main_~__tmp_4~0#1|) (= |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1| ~Id_MCDC_93~0) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~main__Id_MCDC_116~0#1| 0) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~3#1.base|) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~7#1|) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~2#1.base|) (<= |ULTIMATE.start_main_~__tmp_4~0#1| 1) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~0#1|) (<= 1 |ULTIMATE.start_main_~__tmp_2~0#1|) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~4#1|) (<= 0 |ULTIMATE.start_main_~#main__Id_MCDC_119~0#1.offset|) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_88~0#1.offset|) (<= 0 ~__return_main~0) (= |ULTIMATE.start_main_~__tmp_12~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~10#1|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~4#1| 4) (<= |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_88~0#1.offset| 0) (= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~8#1.base| ~__tmp_1075_2~0.base) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~7#1| 1) (<= 6 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~6#1|) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~5#1.base|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~0#1| 1) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~1#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~8#1| 1) (<= 7 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~7#1|) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~2#1| 2) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~6#1|) (<= |ULTIMATE.start_main_~__tmp_2~0#1| 1) (<= 42 (mod ~Id_MCDC_93~0 4294967296)) (<= 8 ~__tmp_1075_0~0) (<= 0 |#NULL.offset|) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~1#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~0#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~2#1| 1) (<= 9 |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1|) (<= |ULTIMATE.start_main_~#main__Id_MCDC_119~0#1.offset| 0) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~1#1| 1) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~5#1| 1) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~1#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~9#1| 0) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~7#1| 7) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~8#1|) (<= |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset| 0) (<= |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_2~3#1| 3) (<= 0 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_0~7#1.base|) (<= 1 |ULTIMATE.start_main_~Id_MCDC_89____CPAchecker_TMP_1~0#1|) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__Id_MCDC_92~8#1|))' at error location [2021-11-25 19:54:48,220 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:54:48,221 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 19:54:48,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 9, 9] total 45 [2021-11-25 19:54:48,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577963502] [2021-11-25 19:54:48,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 19:54:48,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-25 19:54:48,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:54:48,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-25 19:54:48,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=580, Invalid=5426, Unknown=0, NotChecked=0, Total=6006 [2021-11-25 19:54:48,225 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand has 45 states, 45 states have (on average 4.622222222222222) internal successors, (208), 45 states have internal predecessors, (208), 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 19:54:55,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:54:55,852 INFO L93 Difference]: Finished difference Result 120 states and 122 transitions. [2021-11-25 19:54:55,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-25 19:54:55,853 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 4.622222222222222) internal successors, (208), 45 states have internal predecessors, (208), 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 108 [2021-11-25 19:54:55,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:54:55,854 INFO L225 Difference]: With dead ends: 120 [2021-11-25 19:54:55,854 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 19:54:55,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 271 SyntacticMatches, 31 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6457 ImplicationChecksByTransitivity, 49.8s TimeCoverageRelationStatistics Valid=1631, Invalid=16191, Unknown=0, NotChecked=0, Total=17822 [2021-11-25 19:54:55,861 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 490 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 2646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:54:55,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [490 Valid, 652 Invalid, 2646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 2403 Invalid, 0 Unknown, 41 Unchecked, 1.7s Time] [2021-11-25 19:54:55,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 19:54:55,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 19:54:55,863 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 19:54:55,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 19:54:55,863 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2021-11-25 19:54:55,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:54:55,864 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 19:54:55,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 4.622222222222222) internal successors, (208), 45 states have internal predecessors, (208), 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 19:54:55,864 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 19:54:55,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 19:54:55,867 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 19:54:55,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-25 19:54:56,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:54:56,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 19:54:56,228 INFO L858 garLoopResultBuilder]: For program point L225(lines 225 604) no Hoare annotation was computed. [2021-11-25 19:54:56,228 INFO L858 garLoopResultBuilder]: For program point L192(lines 192 622) no Hoare annotation was computed. [2021-11-25 19:54:56,228 INFO L854 garLoopResultBuilder]: At program point L448(lines 408 481) the Hoare annotation is: (let ((.cse1 (< (mod (+ ~Id_MCDC_93~0 4294967295) 4294967296) 42)) (.cse3 (= (select (select |#memory_int| |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.base|) (+ |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset| 492)) 0)) (.cse4 (= |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset| 0))) (or (let ((.cse2 (mod (+ |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1| 4294967295) 4294967296))) (let ((.cse0 (* 12 .cse2))) (and (= .cse0 ~__tmp_1075_2~0.offset) .cse1 (< (mod ~Id_MCDC_93~0 4294967296) 42) (< .cse2 42) .cse3 (not (= .cse0 492)) .cse4))) (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1| 9) .cse1 .cse3 (<= 9 |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1|) .cse4 (<= ~Id_MCDC_93~0 9)))) [2021-11-25 19:54:56,228 INFO L858 garLoopResultBuilder]: For program point L184(lines 184 628) no Hoare annotation was computed. [2021-11-25 19:54:56,228 INFO L858 garLoopResultBuilder]: For program point L440(lines 440 453) no Hoare annotation was computed. [2021-11-25 19:54:56,228 INFO L858 garLoopResultBuilder]: For program point L407(lines 407 485) no Hoare annotation was computed. [2021-11-25 19:54:56,228 INFO L858 garLoopResultBuilder]: For program point L374(lines 374 503) no Hoare annotation was computed. [2021-11-25 19:54:56,228 INFO L858 garLoopResultBuilder]: For program point L465(lines 465 473) no Hoare annotation was computed. [2021-11-25 19:54:56,228 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 509) no Hoare annotation was computed. [2021-11-25 19:54:56,228 INFO L858 garLoopResultBuilder]: For program point L234(lines 234 599) no Hoare annotation was computed. [2021-11-25 19:54:56,229 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 19:54:56,229 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 587) no Hoare annotation was computed. [2021-11-25 19:54:56,229 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 605) no Hoare annotation was computed. [2021-11-25 19:54:56,229 INFO L858 garLoopResultBuilder]: For program point L210(lines 210 611) no Hoare annotation was computed. [2021-11-25 19:54:56,229 INFO L858 garLoopResultBuilder]: For program point L433(lines 433 454) no Hoare annotation was computed. [2021-11-25 19:54:56,229 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 486) no Hoare annotation was computed. [2021-11-25 19:54:56,229 INFO L858 garLoopResultBuilder]: For program point L425(lines 425 475) no Hoare annotation was computed. [2021-11-25 19:54:56,229 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 492) no Hoare annotation was computed. [2021-11-25 19:54:56,229 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 582) no Hoare annotation was computed. [2021-11-25 19:54:56,229 INFO L861 garLoopResultBuilder]: At program point L632(lines 136 636) the Hoare annotation is: true [2021-11-25 19:54:56,230 INFO L858 garLoopResultBuilder]: For program point L277(lines 277 570) no Hoare annotation was computed. [2021-11-25 19:54:56,230 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 588) no Hoare annotation was computed. [2021-11-25 19:54:56,230 INFO L858 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-11-25 19:54:56,230 INFO L858 garLoopResultBuilder]: For program point L236(lines 236 594) no Hoare annotation was computed. [2021-11-25 19:54:56,230 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 565) no Hoare annotation was computed. [2021-11-25 19:54:56,230 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 553) no Hoare annotation was computed. [2021-11-25 19:54:56,231 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 571) no Hoare annotation was computed. [2021-11-25 19:54:56,231 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 577) no Hoare annotation was computed. [2021-11-25 19:54:56,231 INFO L858 garLoopResultBuilder]: For program point L312(lines 312 548) no Hoare annotation was computed. [2021-11-25 19:54:56,231 INFO L858 garLoopResultBuilder]: For program point L329(lines 329 536) no Hoare annotation was computed. [2021-11-25 19:54:56,231 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 554) no Hoare annotation was computed. [2021-11-25 19:54:56,231 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 635) no Hoare annotation was computed. [2021-11-25 19:54:56,232 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 560) no Hoare annotation was computed. [2021-11-25 19:54:56,232 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 467) no Hoare annotation was computed. [2021-11-25 19:54:56,232 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 531) no Hoare annotation was computed. [2021-11-25 19:54:56,232 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 519) no Hoare annotation was computed. [2021-11-25 19:54:56,232 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 537) no Hoare annotation was computed. [2021-11-25 19:54:56,232 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 19:54:56,233 INFO L858 garLoopResultBuilder]: For program point L314(lines 314 543) no Hoare annotation was computed. [2021-11-25 19:54:56,233 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 633) no Hoare annotation was computed. [2021-11-25 19:54:56,233 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 514) no Hoare annotation was computed. [2021-11-25 19:54:56,233 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 621) no Hoare annotation was computed. [2021-11-25 19:54:56,233 INFO L858 garLoopResultBuilder]: For program point L381(lines 381 502) no Hoare annotation was computed. [2021-11-25 19:54:56,233 INFO L858 garLoopResultBuilder]: For program point L348(lines 348 520) no Hoare annotation was computed. [2021-11-25 19:54:56,234 INFO L858 garLoopResultBuilder]: For program point L340(lines 340 526) no Hoare annotation was computed. [2021-11-25 19:54:56,234 INFO L858 garLoopResultBuilder]: For program point L208(lines 208 616) no Hoare annotation was computed. [2021-11-25 19:54:56,234 INFO L858 garLoopResultBuilder]: For program point L423(lines 423 480) no Hoare annotation was computed. [2021-11-25 19:54:56,234 INFO L858 garLoopResultBuilder]: For program point L390(lines 390 497) no Hoare annotation was computed. [2021-11-25 19:54:56,237 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1] [2021-11-25 19:54:56,239 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 19:54:56,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 07:54:56 BoogieIcfgContainer [2021-11-25 19:54:56,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 19:54:56,255 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 19:54:56,255 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 19:54:56,255 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 19:54:56,256 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:47:31" (3/4) ... [2021-11-25 19:54:56,258 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 19:54:56,279 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2021-11-25 19:54:56,281 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-25 19:54:56,283 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-25 19:54:56,284 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 19:54:56,286 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 19:54:56,594 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 19:54:56,595 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 19:54:56,595 INFO L158 Benchmark]: Toolchain (without parser) took 447294.44ms. Allocated memory was 94.4MB in the beginning and 461.4MB in the end (delta: 367.0MB). Free memory was 59.7MB in the beginning and 219.9MB in the end (delta: -160.3MB). Peak memory consumption was 208.3MB. Max. memory is 16.1GB. [2021-11-25 19:54:56,596 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 94.4MB. Free memory was 66.7MB in the beginning and 66.7MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:54:56,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 638.88ms. Allocated memory is still 94.4MB. Free memory was 59.4MB in the beginning and 61.0MB in the end (delta: -1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 19:54:56,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 128.90ms. Allocated memory is still 94.4MB. Free memory was 61.0MB in the beginning and 56.3MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-25 19:54:56,597 INFO L158 Benchmark]: Boogie Preprocessor took 105.53ms. Allocated memory is still 94.4MB. Free memory was 56.3MB in the beginning and 52.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-25 19:54:56,597 INFO L158 Benchmark]: RCFGBuilder took 1392.49ms. Allocated memory was 94.4MB in the beginning and 134.2MB in the end (delta: 39.8MB). Free memory was 52.1MB in the beginning and 95.8MB in the end (delta: -43.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-11-25 19:54:56,598 INFO L158 Benchmark]: TraceAbstraction took 444680.69ms. Allocated memory was 134.2MB in the beginning and 461.4MB in the end (delta: 327.2MB). Free memory was 95.0MB in the beginning and 301.2MB in the end (delta: -206.2MB). Peak memory consumption was 120.8MB. Max. memory is 16.1GB. [2021-11-25 19:54:56,598 INFO L158 Benchmark]: Witness Printer took 339.95ms. Allocated memory is still 461.4MB. Free memory was 301.2MB in the beginning and 219.9MB in the end (delta: 81.2MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2021-11-25 19:54:56,600 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 94.4MB. Free memory was 66.7MB in the beginning and 66.7MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 638.88ms. Allocated memory is still 94.4MB. Free memory was 59.4MB in the beginning and 61.0MB in the end (delta: -1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 128.90ms. Allocated memory is still 94.4MB. Free memory was 61.0MB in the beginning and 56.3MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 105.53ms. Allocated memory is still 94.4MB. Free memory was 56.3MB in the beginning and 52.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1392.49ms. Allocated memory was 94.4MB in the beginning and 134.2MB in the end (delta: 39.8MB). Free memory was 52.1MB in the beginning and 95.8MB in the end (delta: -43.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 444680.69ms. Allocated memory was 134.2MB in the beginning and 461.4MB in the end (delta: 327.2MB). Free memory was 95.0MB in the beginning and 301.2MB in the end (delta: -206.2MB). Peak memory consumption was 120.8MB. Max. memory is 16.1GB. * Witness Printer took 339.95ms. Allocated memory is still 461.4MB. Free memory was 301.2MB in the beginning and 219.9MB in the end (delta: 81.2MB). Peak memory consumption was 81.8MB. 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: 467]: 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, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 444.6s, OverallIterations: 3, TraceHistogramMax: 14, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 16.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1128 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1128 mSDsluCounter, 1307 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 41 IncrementalHoareTripleChecker+Unchecked, 1363 mSDsCounter, 504 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3510 IncrementalHoareTripleChecker+Invalid, 4055 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 504 mSolverCounterUnsat, 75 mSDtfsCounter, 3510 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 637 GetRequests, 367 SyntacticMatches, 35 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9141 ImplicationChecksByTransitivity, 396.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=2, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 29 NumberOfFragments, 89 HoareAnnotationTreeSize, 2 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 875 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 355 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 504 ConstructedInterpolants, 97 QuantifiedInterpolants, 7414 SizeOfPredicates, 21 NumberOfNonLiveVariables, 1688 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 720/1296 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: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: ((((((12 * ((Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296) == __tmp_1075_2 && (Id_MCDC_93 + 4294967295) % 4294967296 < 42) && Id_MCDC_93 % 4294967296 < 42) && (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 < 42) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && !(12 * ((Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296) == 492)) && Id_MCDC_89__Id_MCDC_95 == 0) || ((((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_89__Id_MCDC_96 <= 9) && (Id_MCDC_93 + 4294967295) % 4294967296 < 42) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 9 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_95 == 0) && Id_MCDC_93 <= 9) RESULT: Ultimate proved your program to be correct! [2021-11-25 19:54:56,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a96158a9-ff12-40a5-baf8-233902cb818d/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