./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/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_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/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 64bit --witnessprinter.graph.data.programhash 20745b6559a0027241fed3a5cbed63a985f3358ae9d5e4871ad5e64eb23bcb25 --- 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 01:09:37,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:09:37,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:09:37,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:09:37,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:09:37,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:09:37,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:09:37,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:09:37,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:09:37,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:09:37,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:09:37,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:09:37,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:09:37,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:09:37,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:09:37,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:09:37,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:09:37,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:09:37,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:09:37,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:09:37,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:09:37,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:09:37,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:09:37,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:09:37,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:09:37,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:09:37,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:09:37,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:09:37,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:09:37,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:09:37,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:09:37,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:09:37,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:09:37,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:09:37,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:09:37,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:09:37,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:09:37,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:09:37,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:09:37,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:09:37,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:09:37,185 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 01:09:37,228 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:09:37,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:09:37,229 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:09:37,229 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:09:37,230 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:09:37,230 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:09:37,230 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:09:37,231 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:09:37,231 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:09:37,231 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:09:37,232 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:09:37,232 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:09:37,233 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:09:37,233 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:09:37,233 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:09:37,233 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:09:37,233 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:09:37,234 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:09:37,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:09:37,234 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:09:37,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:09:37,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:09:37,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:09:37,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:09:37,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:09:37,236 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:09:37,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:09:37,236 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:09:37,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:09:37,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:09:37,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:09:37,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:37,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:09:37,237 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:09:37,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:09:37,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:09:37,238 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:09:37,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:09:37,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:09:37,239 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:09:37,239 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_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20745b6559a0027241fed3a5cbed63a985f3358ae9d5e4871ad5e64eb23bcb25 [2022-11-22 01:09:37,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:09:37,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:09:37,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:09:37,573 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:09:37,574 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:09:37,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7.c [2022-11-22 01:09:40,652 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:09:40,859 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:09:40,859 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7.c [2022-11-22 01:09:40,865 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/data/2d27c4100/6e56486a8c084015b7acb87c3313c67f/FLAGbc28122ef [2022-11-22 01:09:40,881 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/data/2d27c4100/6e56486a8c084015b7acb87c3313c67f [2022-11-22 01:09:40,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:09:40,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:09:40,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:40,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:09:40,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:09:40,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:40" (1/1) ... [2022-11-22 01:09:40,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@555016d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:40, skipping insertion in model container [2022-11-22 01:09:40,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:40" (1/1) ... [2022-11-22 01:09:40,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:09:40,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:09:41,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:41,148 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:09:41,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:41,187 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:09:41,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:41 WrapperNode [2022-11-22 01:09:41,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:41,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:41,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:09:41,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:09:41,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:41" (1/1) ... [2022-11-22 01:09:41,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:41" (1/1) ... [2022-11-22 01:09:41,229 INFO L138 Inliner]: procedures = 8, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 49 [2022-11-22 01:09:41,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:41,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:09:41,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:09:41,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:09:41,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:41" (1/1) ... [2022-11-22 01:09:41,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:41" (1/1) ... [2022-11-22 01:09:41,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:41" (1/1) ... [2022-11-22 01:09:41,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:41" (1/1) ... [2022-11-22 01:09:41,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:41" (1/1) ... [2022-11-22 01:09:41,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:41" (1/1) ... [2022-11-22 01:09:41,265 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:41" (1/1) ... [2022-11-22 01:09:41,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:41" (1/1) ... [2022-11-22 01:09:41,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:09:41,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:09:41,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:09:41,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:09:41,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:41" (1/1) ... [2022-11-22 01:09:41,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:41,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:41,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:09:41,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:09:41,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:09:41,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:09:41,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:09:41,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:09:41,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:09:41,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:09:41,497 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:09:41,500 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:09:41,646 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:09:41,668 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:09:41,679 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:09:41,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:41 BoogieIcfgContainer [2022-11-22 01:09:41,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:09:41,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:09:41,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:09:41,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:09:41,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:09:40" (1/3) ... [2022-11-22 01:09:41,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659ebc55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:41, skipping insertion in model container [2022-11-22 01:09:41,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:41" (2/3) ... [2022-11-22 01:09:41,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659ebc55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:41, skipping insertion in model container [2022-11-22 01:09:41,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:41" (3/3) ... [2022-11-22 01:09:41,695 INFO L112 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig7.c [2022-11-22 01:09:41,715 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:09:41,715 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 01:09:41,765 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:09:41,775 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;@301315b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:09:41,775 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-22 01:09:41,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 19 states have internal predecessors, (23), 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) [2022-11-22 01:09:41,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:09:41,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:41,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:09:41,786 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:09:41,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:41,791 INFO L85 PathProgramCache]: Analyzing trace with hash 2600267, now seen corresponding path program 1 times [2022-11-22 01:09:41,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:41,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524932496] [2022-11-22 01:09:41,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:41,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:42,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:42,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:42,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524932496] [2022-11-22 01:09:42,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524932496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:09:42,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:09:42,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:09:42,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341275224] [2022-11-22 01:09:42,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:09:42,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:09:42,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:42,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:09:42,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:09:42,199 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:09:42,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:42,298 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-11-22 01:09:42,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:09:42,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 01:09:42,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:42,309 INFO L225 Difference]: With dead ends: 38 [2022-11-22 01:09:42,309 INFO L226 Difference]: Without dead ends: 30 [2022-11-22 01:09:42,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:09:42,316 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 18 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:42,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 46 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:09:42,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-22 01:09:42,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 20. [2022-11-22 01:09:42,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 19 states have internal predecessors, (22), 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) [2022-11-22 01:09:42,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-22 01:09:42,359 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 4 [2022-11-22 01:09:42,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:42,360 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-22 01:09:42,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:09:42,361 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-22 01:09:42,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:09:42,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:42,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:09:42,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:09:42,363 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:09:42,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:42,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1795945129, now seen corresponding path program 1 times [2022-11-22 01:09:42,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:42,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131896300] [2022-11-22 01:09:42,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:42,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:42,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:42,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:42,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131896300] [2022-11-22 01:09:42,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131896300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:09:42,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:09:42,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:09:42,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571418428] [2022-11-22 01:09:42,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:09:42,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:09:42,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:42,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:09:42,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:09:42,507 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:09:42,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:42,542 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-11-22 01:09:42,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:09:42,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 01:09:42,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:42,545 INFO L225 Difference]: With dead ends: 30 [2022-11-22 01:09:42,545 INFO L226 Difference]: Without dead ends: 20 [2022-11-22 01:09:42,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:09:42,548 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:42,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 27 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:09:42,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-22 01:09:42,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-22 01:09:42,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.5) internal successors, (21), 19 states have internal predecessors, (21), 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) [2022-11-22 01:09:42,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-22 01:09:42,561 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 6 [2022-11-22 01:09:42,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:42,562 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-22 01:09:42,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:09:42,563 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-22 01:09:42,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:09:42,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:42,565 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-22 01:09:42,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:09:42,566 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:09:42,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:42,569 INFO L85 PathProgramCache]: Analyzing trace with hash 155194564, now seen corresponding path program 1 times [2022-11-22 01:09:42,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:42,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041733749] [2022-11-22 01:09:42,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:42,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:42,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:42,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:42,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041733749] [2022-11-22 01:09:42,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041733749] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:09:42,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041418870] [2022-11-22 01:09:42,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:42,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:42,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:42,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:09:42,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:09:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:42,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:09:42,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:42,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:42,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:09:42,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:42,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041418870] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:09:42,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [982024036] [2022-11-22 01:09:42,901 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-11-22 01:09:42,902 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:09:42,907 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:09:42,912 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:09:42,913 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:09:43,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-22 01:09:43,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-22 01:09:43,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 01:09:43,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2022-11-22 01:09:43,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:43,433 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 01:09:43,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 169 treesize of output 152 [2022-11-22 01:09:43,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 01:09:43,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 01:09:43,669 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:09:44,301 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '204#(and (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (<= |ULTIMATE.start_main_~a_length~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_#t~post1#1|) (<= 1 |ULTIMATE.start_main_~a_length~0#1|) (<= |ULTIMATE.start_main_#t~post1#1| 2147483647) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:09:44,302 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:09:44,302 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:09:44,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-22 01:09:44,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279260710] [2022-11-22 01:09:44,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:09:44,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:09:44,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:44,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:09:44,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:09:44,304 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 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) [2022-11-22 01:09:44,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:44,479 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-11-22 01:09:44,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:09:44,480 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 01:09:44,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:44,481 INFO L225 Difference]: With dead ends: 63 [2022-11-22 01:09:44,481 INFO L226 Difference]: Without dead ends: 62 [2022-11-22 01:09:44,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2022-11-22 01:09:44,483 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 99 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:44,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 76 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:09:44,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-22 01:09:44,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 28. [2022-11-22 01:09:44,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 27 states have internal predecessors, (34), 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) [2022-11-22 01:09:44,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2022-11-22 01:09:44,489 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 7 [2022-11-22 01:09:44,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:44,490 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2022-11-22 01:09:44,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 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) [2022-11-22 01:09:44,490 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-11-22 01:09:44,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:09:44,491 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:44,491 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-11-22 01:09:44,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 01:09:44,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:44,706 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:09:44,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:44,707 INFO L85 PathProgramCache]: Analyzing trace with hash 516064239, now seen corresponding path program 1 times [2022-11-22 01:09:44,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:44,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851436631] [2022-11-22 01:09:44,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:44,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:44,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:44,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:44,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851436631] [2022-11-22 01:09:44,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851436631] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:09:44,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132115689] [2022-11-22 01:09:44,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:44,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:44,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:44,839 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:09:44,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:09:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:44,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:09:44,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:44,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:44,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:09:44,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132115689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:09:44,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:09:44,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 01:09:44,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983182865] [2022-11-22 01:09:44,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:09:44,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:09:44,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:44,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:09:44,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:09:44,922 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:09:44,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:44,964 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2022-11-22 01:09:44,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:09:44,965 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 01:09:44,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:44,967 INFO L225 Difference]: With dead ends: 28 [2022-11-22 01:09:44,967 INFO L226 Difference]: Without dead ends: 27 [2022-11-22 01:09:44,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:09:44,971 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 29 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:44,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 33 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:09:44,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-22 01:09:44,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-22 01:09:44,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 26 states have internal predecessors, (31), 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) [2022-11-22 01:09:44,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-11-22 01:09:44,988 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 8 [2022-11-22 01:09:44,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:44,988 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-11-22 01:09:44,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:09:44,989 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-11-22 01:09:44,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:09:44,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:44,989 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:44,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:09:45,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:45,195 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:09:45,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:45,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1181713776, now seen corresponding path program 1 times [2022-11-22 01:09:45,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:45,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299525547] [2022-11-22 01:09:45,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:45,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:45,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:09:45,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:45,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299525547] [2022-11-22 01:09:45,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299525547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:09:45,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:09:45,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:09:45,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199764377] [2022-11-22 01:09:45,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:09:45,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:09:45,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:45,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:09:45,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:09:45,284 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-22 01:09:45,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:45,318 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-11-22 01:09:45,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:09:45,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 01:09:45,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:45,320 INFO L225 Difference]: With dead ends: 37 [2022-11-22 01:09:45,320 INFO L226 Difference]: Without dead ends: 35 [2022-11-22 01:09:45,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:09:45,322 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:45,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 12 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:09:45,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-22 01:09:45,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2022-11-22 01:09:45,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 30 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:09:45,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2022-11-22 01:09:45,333 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 9 [2022-11-22 01:09:45,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:45,333 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-11-22 01:09:45,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-22 01:09:45,334 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-11-22 01:09:45,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:09:45,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:45,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:45,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:09:45,335 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:09:45,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:45,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1755570254, now seen corresponding path program 1 times [2022-11-22 01:09:45,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:45,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114939923] [2022-11-22 01:09:45,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:45,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:09:45,369 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:09:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:09:45,399 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:09:45,400 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:09:45,401 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-22 01:09:45,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-22 01:09:45,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-22 01:09:45,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-22 01:09:45,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-22 01:09:45,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-22 01:09:45,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:09:45,407 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-22 01:09:45,412 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:09:45,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:09:45 BoogieIcfgContainer [2022-11-22 01:09:45,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:09:45,434 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:09:45,434 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:09:45,434 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:09:45,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:41" (3/4) ... [2022-11-22 01:09:45,437 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 01:09:45,468 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:09:45,468 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:09:45,469 INFO L158 Benchmark]: Toolchain (without parser) took 4583.88ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 142.1MB in the beginning and 131.6MB in the end (delta: 10.5MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. [2022-11-22 01:09:45,469 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 130.0MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:09:45,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.52ms. Allocated memory is still 174.1MB. Free memory was 141.9MB in the beginning and 135.5MB in the end (delta: 6.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2022-11-22 01:09:45,470 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.88ms. Allocated memory is still 174.1MB. Free memory was 135.5MB in the beginning and 133.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:09:45,470 INFO L158 Benchmark]: Boogie Preprocessor took 36.91ms. Allocated memory is still 174.1MB. Free memory was 133.9MB in the beginning and 133.1MB in the end (delta: 800.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:09:45,470 INFO L158 Benchmark]: RCFGBuilder took 416.47ms. Allocated memory is still 174.1MB. Free memory was 133.1MB in the beginning and 135.5MB in the end (delta: -2.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-22 01:09:45,471 INFO L158 Benchmark]: TraceAbstraction took 3747.19ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 134.7MB in the beginning and 133.7MB in the end (delta: 941.4kB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2022-11-22 01:09:45,471 INFO L158 Benchmark]: Witness Printer took 34.17ms. Allocated memory is still 209.7MB. Free memory was 133.7MB in the beginning and 131.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:09:45,473 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 130.0MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.52ms. Allocated memory is still 174.1MB. Free memory was 141.9MB in the beginning and 135.5MB in the end (delta: 6.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.88ms. Allocated memory is still 174.1MB. Free memory was 135.5MB in the beginning and 133.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.91ms. Allocated memory is still 174.1MB. Free memory was 133.9MB in the beginning and 133.1MB in the end (delta: 800.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 416.47ms. Allocated memory is still 174.1MB. Free memory was 133.1MB in the beginning and 135.5MB in the end (delta: -2.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3747.19ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 134.7MB in the beginning and 133.7MB in the end (delta: 941.4kB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. * Witness Printer took 34.17ms. Allocated memory is still 209.7MB. Free memory was 133.7MB in the beginning and 131.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int a_length = __VERIFIER_nondet_int(); [L13] COND FALSE !(a_length < 1) [L16] int a[a_length]; [L17] int j = 0; VAL [a={2:0}, a_length=1, j=0] [L17] COND TRUE j < a_length [L18] a[j] = __VERIFIER_nondet_int() [L17] j++ VAL [a={2:0}, a_length=1, j=1] [L17] COND FALSE !(j < a_length) [L20] int offset = 1; [L21] int i = 0; VAL [a={2:0}, a_length=1, i=0, j=1, offset=1] [L22] COND TRUE i < a_length [L23] EXPR a[i] VAL [a={2:0}, a[i]=2147483647, a_length=1, i=0, j=1, offset=1] [L23] COND FALSE !(a[i] < 0) [L26] EXPR i + offset [L26] EXPR a[i] VAL [a={2:0}, a[i]=2147483647, a_length=1, i=0, j=1, offset=1] [L26] i + offset + a[i] VAL [a={2:0}, a[i]=2147483647, a_length=1, i=0, j=1, offset=1] - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 153 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 153 mSDsluCounter, 194 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 133 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 61 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=5, InterpolantAutomatonStates: 31, 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, 5 MinimizatonAttempts, 48 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 4 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 4/13 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-22 01:09:45,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401ce027-9cb2-489d-be6b-3c5d7f30b6ea/bin/utaipan-g80aRyZoba/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)