./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-009.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-009.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 467fcaafa9af0a00772f5009c99943c6cb7078cb0bca94a00a243b41a6183129 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:16:36,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:16:36,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:16:36,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:16:36,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:16:36,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:16:36,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:16:36,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:16:36,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:16:36,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:16:36,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:16:36,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:16:36,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:16:36,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:16:36,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:16:36,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:16:36,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:16:36,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:16:36,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:16:36,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:16:36,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:16:36,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:16:36,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:16:36,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:16:36,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:16:36,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:16:36,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:16:36,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:16:36,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:16:36,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:16:36,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:16:36,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:16:36,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:16:36,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:16:36,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:16:36,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:16:36,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:16:36,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:16:36,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:16:36,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:16:36,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:16:36,114 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:16:36,153 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:16:36,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:16:36,154 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:16:36,154 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:16:36,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:16:36,158 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:16:36,158 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:16:36,158 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:16:36,158 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:16:36,159 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:16:36,160 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:16:36,160 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:16:36,160 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:16:36,161 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:16:36,161 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:16:36,161 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:16:36,162 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:16:36,162 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:16:36,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:16:36,163 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:16:36,164 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:16:36,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:16:36,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:16:36,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:16:36,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:16:36,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:16:36,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:16:36,166 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:16:36,166 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:16:36,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:16:36,167 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:16:36,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:16:36,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:16:36,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:16:36,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:16:36,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:16:36,169 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:16:36,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:16:36,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:16:36,169 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:16:36,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:16:36,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:16:36,170 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:16:36,171 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 467fcaafa9af0a00772f5009c99943c6cb7078cb0bca94a00a243b41a6183129 [2022-11-22 02:16:36,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:16:36,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:16:36,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:16:36,492 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:16:36,492 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:16:36,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/xcsp/AllInterval-009.c [2022-11-22 02:16:39,534 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:16:39,747 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:16:39,747 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/sv-benchmarks/c/xcsp/AllInterval-009.c [2022-11-22 02:16:39,755 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/data/bc1861038/390cd04ead084c20b7d7de6b29c42748/FLAGebc4de65d [2022-11-22 02:16:39,773 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/data/bc1861038/390cd04ead084c20b7d7de6b29c42748 [2022-11-22 02:16:39,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:16:39,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:16:39,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:16:39,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:16:39,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:16:39,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:39" (1/1) ... [2022-11-22 02:16:39,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5212d24e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:39, skipping insertion in model container [2022-11-22 02:16:39,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:39" (1/1) ... [2022-11-22 02:16:39,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:16:39,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:16:40,013 WARN L237 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_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/sv-benchmarks/c/xcsp/AllInterval-009.c[5030,5043] [2022-11-22 02:16:40,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:16:40,026 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:16:40,070 WARN L237 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_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/sv-benchmarks/c/xcsp/AllInterval-009.c[5030,5043] [2022-11-22 02:16:40,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:16:40,085 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:16:40,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:40 WrapperNode [2022-11-22 02:16:40,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:16:40,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:16:40,095 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:16:40,095 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:16:40,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:40" (1/1) ... [2022-11-22 02:16:40,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:40" (1/1) ... [2022-11-22 02:16:40,142 INFO L138 Inliner]: procedures = 13, calls = 113, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 272 [2022-11-22 02:16:40,142 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:16:40,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:16:40,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:16:40,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:16:40,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:40" (1/1) ... [2022-11-22 02:16:40,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:40" (1/1) ... [2022-11-22 02:16:40,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:40" (1/1) ... [2022-11-22 02:16:40,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:40" (1/1) ... [2022-11-22 02:16:40,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:40" (1/1) ... [2022-11-22 02:16:40,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:40" (1/1) ... [2022-11-22 02:16:40,169 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:40" (1/1) ... [2022-11-22 02:16:40,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:40" (1/1) ... [2022-11-22 02:16:40,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:16:40,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:16:40,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:16:40,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:16:40,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:40" (1/1) ... [2022-11-22 02:16:40,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:16:40,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:16:40,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:16:40,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:16:40,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:16:40,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:16:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:16:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:16:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-11-22 02:16:40,258 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-11-22 02:16:40,339 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:16:40,341 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:16:40,777 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:16:40,821 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:16:40,825 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:16:40,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:16:40 BoogieIcfgContainer [2022-11-22 02:16:40,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:16:40,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:16:40,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:16:40,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:16:40,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:16:39" (1/3) ... [2022-11-22 02:16:40,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ef6338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:16:40, skipping insertion in model container [2022-11-22 02:16:40,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:40" (2/3) ... [2022-11-22 02:16:40,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ef6338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:16:40, skipping insertion in model container [2022-11-22 02:16:40,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:16:40" (3/3) ... [2022-11-22 02:16:40,850 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-009.c [2022-11-22 02:16:40,872 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:16:40,872 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-11-22 02:16:40,938 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:16:40,945 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3ed93799, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:16:40,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2022-11-22 02:16:40,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 69 states have (on average 1.5797101449275361) internal successors, (109), 101 states have internal predecessors, (109), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2022-11-22 02:16:40,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-11-22 02:16:40,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:16:40,992 INFO L195 NwaCegarLoop]: trace histogram [98, 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, 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, 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, 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, 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] [2022-11-22 02:16:40,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-11-22 02:16:41,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:16:41,002 INFO L85 PathProgramCache]: Analyzing trace with hash -954106397, now seen corresponding path program 1 times [2022-11-22 02:16:41,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:16:41,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703697891] [2022-11-22 02:16:41,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:16:41,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:16:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:16:42,679 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 2 proven. 95 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-22 02:16:42,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:16:42,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703697891] [2022-11-22 02:16:42,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703697891] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:16:42,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580667459] [2022-11-22 02:16:42,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:16:42,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:16:42,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:16:42,703 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:16:42,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:16:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:16:43,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 02:16:43,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:16:43,931 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 2 proven. 95 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-22 02:16:43,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:16:44,506 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 2 proven. 95 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-22 02:16:44,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580667459] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:16:44,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1083066905] [2022-11-22 02:16:44,559 INFO L159 IcfgInterpreter]: Started Sifa with 121 locations of interest [2022-11-22 02:16:44,560 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:16:44,564 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:16:44,572 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:16:44,572 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:17:25,677 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-22 02:17:25,694 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:20:03,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1083066905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:20:03,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:20:03,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [118] imperfect sequences [5, 4, 4] total 125 [2022-11-22 02:20:03,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238508300] [2022-11-22 02:20:03,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:20:03,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2022-11-22 02:20:03,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:20:03,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2022-11-22 02:20:03,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7611, Invalid=8139, Unknown=0, NotChecked=0, Total=15750 [2022-11-22 02:20:03,090 INFO L87 Difference]: Start difference. First operand has 209 states, 69 states have (on average 1.5797101449275361) internal successors, (109), 101 states have internal predecessors, (109), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) Second operand has 120 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-22 02:20:08,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:20:08,441 INFO L93 Difference]: Finished difference Result 209 states and 321 transitions. [2022-11-22 02:20:08,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-11-22 02:20:08,444 INFO L78 Accepts]: Start accepts. Automaton has has 120 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) Word has length 314 [2022-11-22 02:20:08,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:20:08,454 INFO L225 Difference]: With dead ends: 209 [2022-11-22 02:20:08,454 INFO L226 Difference]: Without dead ends: 189 [2022-11-22 02:20:08,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 945 GetRequests, 819 SyntacticMatches, 2 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 157.3s TimeCoverageRelationStatistics Valid=7611, Invalid=8139, Unknown=0, NotChecked=0, Total=15750 [2022-11-22 02:20:08,462 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 419 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 2024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:20:08,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 254 Invalid, 2024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-22 02:20:08,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-22 02:20:08,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2022-11-22 02:20:08,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 67 states have (on average 1.328358208955224) internal successors, (89), 82 states have internal predecessors, (89), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-22 02:20:08,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 299 transitions. [2022-11-22 02:20:08,722 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 299 transitions. Word has length 314 [2022-11-22 02:20:08,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:20:08,725 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 299 transitions. [2022-11-22 02:20:08,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 120 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-22 02:20:08,726 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 299 transitions. [2022-11-22 02:20:08,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-22 02:20:08,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:20:08,733 INFO L195 NwaCegarLoop]: trace histogram [98, 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, 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, 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, 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, 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] [2022-11-22 02:20:08,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:20:08,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-22 02:20:08,941 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-11-22 02:20:08,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:20:08,942 INFO L85 PathProgramCache]: Analyzing trace with hash 310042999, now seen corresponding path program 1 times [2022-11-22 02:20:08,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:20:08,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037746222] [2022-11-22 02:20:08,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:08,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:20:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:20:09,610 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-22 02:20:09,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:20:09,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037746222] [2022-11-22 02:20:09,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037746222] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:20:09,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479714780] [2022-11-22 02:20:09,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:09,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:20:09,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:20:09,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:20:09,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:20:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:20:09,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 02:20:09,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:20:10,324 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-22 02:20:10,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:20:10,783 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-22 02:20:10,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479714780] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:20:10,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [332660209] [2022-11-22 02:20:10,803 INFO L159 IcfgInterpreter]: Started Sifa with 124 locations of interest [2022-11-22 02:20:10,807 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:20:10,808 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:20:10,808 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:20:10,808 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:20:48,499 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-22 02:20:48,512 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:23:39,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [332660209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:39,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:23:39,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [120] imperfect sequences [5, 5, 5] total 126 [2022-11-22 02:23:39,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320072797] [2022-11-22 02:23:39,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:39,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 122 states [2022-11-22 02:23:39,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:39,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2022-11-22 02:23:39,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7625, Invalid=8377, Unknown=0, NotChecked=0, Total=16002 [2022-11-22 02:23:39,074 INFO L87 Difference]: Start difference. First operand 189 states and 299 transitions. Second operand has 122 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 23 states have internal predecessors, (24), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-22 02:23:45,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:45,267 INFO L93 Difference]: Finished difference Result 190 states and 300 transitions. [2022-11-22 02:23:45,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-11-22 02:23:45,268 INFO L78 Accepts]: Start accepts. Automaton has has 122 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 23 states have internal predecessors, (24), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) Word has length 317 [2022-11-22 02:23:45,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:45,272 INFO L225 Difference]: With dead ends: 190 [2022-11-22 02:23:45,272 INFO L226 Difference]: Without dead ends: 188 [2022-11-22 02:23:45,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 954 GetRequests, 825 SyntacticMatches, 4 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 170.5s TimeCoverageRelationStatistics Valid=7625, Invalid=8377, Unknown=0, NotChecked=0, Total=16002 [2022-11-22 02:23:45,277 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 403 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 2148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:45,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 237 Invalid, 2148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-22 02:23:45,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-22 02:23:45,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 187. [2022-11-22 02:23:45,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 80 states have internal predecessors, (87), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-22 02:23:45,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 297 transitions. [2022-11-22 02:23:45,485 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 297 transitions. Word has length 317 [2022-11-22 02:23:45,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:45,486 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 297 transitions. [2022-11-22 02:23:45,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 122 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 23 states have internal predecessors, (24), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-22 02:23:45,487 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 297 transitions. [2022-11-22 02:23:45,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-11-22 02:23:45,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:45,493 INFO L195 NwaCegarLoop]: trace histogram [99, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1] [2022-11-22 02:23:45,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-22 02:23:45,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-22 02:23:45,700 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-11-22 02:23:45,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:45,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1812905304, now seen corresponding path program 1 times [2022-11-22 02:23:45,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:45,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904054453] [2022-11-22 02:23:45,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:45,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:46,788 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 116 proven. 264 refuted. 0 times theorem prover too weak. 9322 trivial. 0 not checked. [2022-11-22 02:23:46,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:46,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904054453] [2022-11-22 02:23:46,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904054453] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:23:46,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312872450] [2022-11-22 02:23:46,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:46,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:23:46,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:23:46,794 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:23:46,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:23:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:46,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 02:23:47,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:23:47,523 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-11-22 02:23:47,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:23:48,088 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-11-22 02:23:48,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312872450] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:23:48,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [355722479] [2022-11-22 02:23:48,092 INFO L159 IcfgInterpreter]: Started Sifa with 129 locations of interest [2022-11-22 02:23:48,092 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:23:48,093 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:23:48,093 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:23:48,094 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:24:27,555 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-22 02:24:27,556 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:27:43,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [355722479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:27:43,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:27:43,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [124] imperfect sequences [9, 5, 5] total 137 [2022-11-22 02:27:43,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658160250] [2022-11-22 02:27:43,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:27:43,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2022-11-22 02:27:43,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:27:43,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2022-11-22 02:27:43,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8582, Invalid=10324, Unknown=0, NotChecked=0, Total=18906 [2022-11-22 02:27:43,319 INFO L87 Difference]: Start difference. First operand 187 states and 297 transitions. Second operand has 126 states, 25 states have (on average 1.12) internal successors, (28), 27 states have internal predecessors, (28), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2022-11-22 02:27:51,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:27:51,717 INFO L93 Difference]: Finished difference Result 198 states and 310 transitions. [2022-11-22 02:27:51,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-11-22 02:27:51,718 INFO L78 Accepts]: Start accepts. Automaton has has 126 states, 25 states have (on average 1.12) internal successors, (28), 27 states have internal predecessors, (28), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) Word has length 324 [2022-11-22 02:27:51,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:27:51,721 INFO L225 Difference]: With dead ends: 198 [2022-11-22 02:27:51,721 INFO L226 Difference]: Without dead ends: 196 [2022-11-22 02:27:51,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 983 GetRequests, 843 SyntacticMatches, 4 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 774 ImplicationChecksByTransitivity, 195.8s TimeCoverageRelationStatistics Valid=8582, Invalid=10324, Unknown=0, NotChecked=0, Total=18906 [2022-11-22 02:27:51,725 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 379 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1960 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 2576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 1960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:27:51,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 237 Invalid, 2576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 1960 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-11-22 02:27:51,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-22 02:27:51,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 194. [2022-11-22 02:27:51,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 73 states have (on average 1.2876712328767124) internal successors, (94), 86 states have internal predecessors, (94), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2022-11-22 02:27:51,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 306 transitions. [2022-11-22 02:27:51,868 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 306 transitions. Word has length 324 [2022-11-22 02:27:51,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:27:51,870 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 306 transitions. [2022-11-22 02:27:51,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 126 states, 25 states have (on average 1.12) internal successors, (28), 27 states have internal predecessors, (28), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2022-11-22 02:27:51,870 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 306 transitions. [2022-11-22 02:27:51,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-11-22 02:27:51,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:27:51,876 INFO L195 NwaCegarLoop]: trace histogram [99, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:27:51,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:27:52,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-22 02:27:52,077 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-11-22 02:27:52,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:27:52,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1198539580, now seen corresponding path program 1 times [2022-11-22 02:27:52,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:27:52,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254795610] [2022-11-22 02:27:52,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:27:52,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:27:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:27:52,676 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-11-22 02:27:52,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:27:52,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254795610] [2022-11-22 02:27:52,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254795610] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:27:52,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085149124] [2022-11-22 02:27:52,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:27:52,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:27:52,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:27:52,679 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:27:52,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66c8daf4-e10e-4f5c-bb47-5f9caac89fcd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:27:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:27:52,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 02:27:52,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:27:53,413 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-11-22 02:27:53,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:27:53,999 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-11-22 02:27:54,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085149124] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:27:54,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1060906108] [2022-11-22 02:27:54,003 INFO L159 IcfgInterpreter]: Started Sifa with 131 locations of interest [2022-11-22 02:27:54,003 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:27:54,004 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:27:54,004 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:27:54,004 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:28:30,773 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-22 02:28:30,774 INFO L180 IcfgInterpreter]: Interpretation finished