./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/sorting_bubblesort_2_ground.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/sorting_bubblesort_2_ground.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW --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 2e8196ca3e7f8da6be63ed057317b8a370ba560e11740ea9a51451f140c434c1 --- 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-4e7fbc6 [2022-11-23 15:23:32,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:23:32,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:23:32,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:23:32,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:23:32,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:23:32,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:23:32,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:23:32,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:23:32,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:23:32,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:23:32,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:23:32,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:23:32,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:23:32,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:23:32,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:23:32,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:23:32,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:23:32,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:23:32,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:23:32,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:23:32,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:23:32,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:23:32,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:23:32,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:23:32,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:23:32,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:23:32,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:23:32,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:23:32,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:23:32,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:23:32,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:23:32,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:23:32,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:23:32,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:23:32,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:23:32,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:23:32,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:23:32,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:23:32,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:23:32,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:23:32,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 15:23:32,246 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:23:32,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:23:32,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:23:32,248 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:23:32,249 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:23:32,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:23:32,249 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:23:32,250 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:23:32,250 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:23:32,250 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:23:32,252 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:23:32,252 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:23:32,252 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:23:32,252 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:23:32,253 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:23:32,253 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:23:32,253 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:23:32,254 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:23:32,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:23:32,255 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:23:32,255 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:23:32,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:23:32,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:23:32,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:23:32,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:23:32,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:23:32,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:23:32,257 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:23:32,258 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:23:32,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:23:32,259 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:23:32,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:23:32,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:23:32,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:23:32,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:23:32,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:23:32,260 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:23:32,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:23:32,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:23:32,261 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:23:32,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:23:32,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:23:32,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:23:32,262 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_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e8196ca3e7f8da6be63ed057317b8a370ba560e11740ea9a51451f140c434c1 [2022-11-23 15:23:32,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:23:32,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:23:32,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:23:32,648 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:23:32,649 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:23:32,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/array-examples/sorting_bubblesort_2_ground.i [2022-11-23 15:23:36,030 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:23:36,337 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:23:36,338 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/sv-benchmarks/c/array-examples/sorting_bubblesort_2_ground.i [2022-11-23 15:23:36,350 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/data/2bfdf9c15/2f64999ca3e34b4f96c3ee21b56c5062/FLAG0df41d672 [2022-11-23 15:23:36,373 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/data/2bfdf9c15/2f64999ca3e34b4f96c3ee21b56c5062 [2022-11-23 15:23:36,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:23:36,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:23:36,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:23:36,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:23:36,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:23:36,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:23:36" (1/1) ... [2022-11-23 15:23:36,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59cb44ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:36, skipping insertion in model container [2022-11-23 15:23:36,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:23:36" (1/1) ... [2022-11-23 15:23:36,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:23:36,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:23:36,642 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_a25eaad6-ab33-4a97-9fd0-a855c244b05b/sv-benchmarks/c/array-examples/sorting_bubblesort_2_ground.i[820,833] [2022-11-23 15:23:36,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:23:36,672 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:23:36,688 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_a25eaad6-ab33-4a97-9fd0-a855c244b05b/sv-benchmarks/c/array-examples/sorting_bubblesort_2_ground.i[820,833] [2022-11-23 15:23:36,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:23:36,716 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:23:36,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:36 WrapperNode [2022-11-23 15:23:36,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:23:36,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:23:36,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:23:36,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:23:36,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:36" (1/1) ... [2022-11-23 15:23:36,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:36" (1/1) ... [2022-11-23 15:23:36,792 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 98 [2022-11-23 15:23:36,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:23:36,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:23:36,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:23:36,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:23:36,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:36" (1/1) ... [2022-11-23 15:23:36,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:36" (1/1) ... [2022-11-23 15:23:36,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:36" (1/1) ... [2022-11-23 15:23:36,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:36" (1/1) ... [2022-11-23 15:23:36,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:36" (1/1) ... [2022-11-23 15:23:36,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:36" (1/1) ... [2022-11-23 15:23:36,838 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:36" (1/1) ... [2022-11-23 15:23:36,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:36" (1/1) ... [2022-11-23 15:23:36,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:23:36,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:23:36,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:23:36,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:23:36,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:36" (1/1) ... [2022-11-23 15:23:36,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:23:36,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:36,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:23:36,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:23:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:23:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:23:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:23:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:23:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:23:36,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:23:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:23:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:23:37,069 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:23:37,072 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:23:37,431 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:23:37,511 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:23:37,511 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-23 15:23:37,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:23:37 BoogieIcfgContainer [2022-11-23 15:23:37,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:23:37,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:23:37,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:23:37,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:23:37,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:23:36" (1/3) ... [2022-11-23 15:23:37,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1285f97f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:23:37, skipping insertion in model container [2022-11-23 15:23:37,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:36" (2/3) ... [2022-11-23 15:23:37,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1285f97f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:23:37, skipping insertion in model container [2022-11-23 15:23:37,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:23:37" (3/3) ... [2022-11-23 15:23:37,525 INFO L112 eAbstractionObserver]: Analyzing ICFG sorting_bubblesort_2_ground.i [2022-11-23 15:23:37,551 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:23:37,551 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-23 15:23:37,614 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:23:37,623 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;@7186c8b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:23:37,623 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-23 15:23:37,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 39 states have internal predecessors, (45), 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) [2022-11-23 15:23:37,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-23 15:23:37,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:37,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-23 15:23:37,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 15:23:37,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:37,646 INFO L85 PathProgramCache]: Analyzing trace with hash 149743, now seen corresponding path program 1 times [2022-11-23 15:23:37,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:37,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924612254] [2022-11-23 15:23:37,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:37,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:37,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:23:37,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:37,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924612254] [2022-11-23 15:23:37,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924612254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:37,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:23:37,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:23:37,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608374687] [2022-11-23 15:23:37,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:37,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:23:37,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:38,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:23:38,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:23:38,008 INFO L87 Difference]: Start difference. First operand has 40 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 39 states have internal predecessors, (45), 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 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-23 15:23:38,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:38,119 INFO L93 Difference]: Finished difference Result 79 states and 89 transitions. [2022-11-23 15:23:38,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:23:38,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-11-23 15:23:38,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:38,133 INFO L225 Difference]: With dead ends: 79 [2022-11-23 15:23:38,133 INFO L226 Difference]: Without dead ends: 42 [2022-11-23 15:23:38,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:23:38,141 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 3 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:38,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 104 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:23:38,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-23 15:23:38,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-23 15:23:38,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 41 states have internal predecessors, (47), 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) [2022-11-23 15:23:38,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-11-23 15:23:38,182 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 3 [2022-11-23 15:23:38,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:38,183 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-11-23 15:23:38,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-23 15:23:38,183 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-11-23 15:23:38,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 15:23:38,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:38,184 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-23 15:23:38,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:23:38,185 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 15:23:38,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:38,186 INFO L85 PathProgramCache]: Analyzing trace with hash 166075255, now seen corresponding path program 1 times [2022-11-23 15:23:38,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:38,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504838605] [2022-11-23 15:23:38,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:38,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:38,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:23:38,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:38,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504838605] [2022-11-23 15:23:38,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504838605] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:38,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130532192] [2022-11-23 15:23:38,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:38,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:38,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:38,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:38,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:23:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:38,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:23:38,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:38,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:23:38,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:23:38,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130532192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:38,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:23:38,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-23 15:23:38,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808932431] [2022-11-23 15:23:38,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:38,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:23:38,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:38,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:23:38,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:23:38,681 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:23:38,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:38,747 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2022-11-23 15:23:38,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:23:38,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 15:23:38,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:38,749 INFO L225 Difference]: With dead ends: 42 [2022-11-23 15:23:38,749 INFO L226 Difference]: Without dead ends: 41 [2022-11-23 15:23:38,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:23:38,752 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 85 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:38,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 66 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:23:38,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-23 15:23:38,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-23 15:23:38,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 40 states have internal predecessors, (46), 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) [2022-11-23 15:23:38,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2022-11-23 15:23:38,760 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 6 [2022-11-23 15:23:38,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:38,760 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2022-11-23 15:23:38,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:23:38,761 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2022-11-23 15:23:38,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 15:23:38,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:38,762 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-11-23 15:23:38,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:23:38,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:38,969 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 15:23:38,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:38,970 INFO L85 PathProgramCache]: Analyzing trace with hash 853365655, now seen corresponding path program 1 times [2022-11-23 15:23:38,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:38,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329723847] [2022-11-23 15:23:38,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:38,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:39,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:23:39,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:39,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329723847] [2022-11-23 15:23:39,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329723847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:39,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:23:39,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:23:39,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076374222] [2022-11-23 15:23:39,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:39,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:23:39,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:39,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:23:39,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:23:39,097 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-23 15:23:39,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:39,135 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2022-11-23 15:23:39,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:23:39,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 [2022-11-23 15:23:39,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:39,136 INFO L225 Difference]: With dead ends: 41 [2022-11-23 15:23:39,137 INFO L226 Difference]: Without dead ends: 40 [2022-11-23 15:23:39,137 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 [2022-11-23 15:23:39,138 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:39,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:23:39,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-23 15:23:39,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2022-11-23 15:23:39,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 37 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:23:39,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2022-11-23 15:23:39,145 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 7 [2022-11-23 15:23:39,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:39,145 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-11-23 15:23:39,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-23 15:23:39,145 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-11-23 15:23:39,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:23:39,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:39,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:39,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:23:39,147 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 15:23:39,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:39,147 INFO L85 PathProgramCache]: Analyzing trace with hash 685007238, now seen corresponding path program 1 times [2022-11-23 15:23:39,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:39,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670766784] [2022-11-23 15:23:39,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:39,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:39,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:23:39,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:39,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670766784] [2022-11-23 15:23:39,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670766784] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:39,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322705645] [2022-11-23 15:23:39,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:39,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:39,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:39,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:39,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:23:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:39,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:23:39,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:39,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:23:39,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:23:39,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322705645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:39,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:23:39,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-23 15:23:39,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925894316] [2022-11-23 15:23:39,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:39,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:23:39,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:39,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:23:39,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:23:39,388 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-11-23 15:23:39,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:39,427 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2022-11-23 15:23:39,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:23:39,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 [2022-11-23 15:23:39,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:39,431 INFO L225 Difference]: With dead ends: 71 [2022-11-23 15:23:39,431 INFO L226 Difference]: Without dead ends: 57 [2022-11-23 15:23:39,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:23:39,433 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 19 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:39,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 86 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:23:39,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-23 15:23:39,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 45. [2022-11-23 15:23:39,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.8064516129032258) internal successors, (56), 44 states have internal predecessors, (56), 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) [2022-11-23 15:23:39,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2022-11-23 15:23:39,442 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 8 [2022-11-23 15:23:39,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:39,442 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2022-11-23 15:23:39,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-11-23 15:23:39,443 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2022-11-23 15:23:39,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:23:39,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:39,443 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:39,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:23:39,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:39,645 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 15:23:39,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:39,645 INFO L85 PathProgramCache]: Analyzing trace with hash 684904188, now seen corresponding path program 1 times [2022-11-23 15:23:39,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:39,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447725850] [2022-11-23 15:23:39,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:39,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:39,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:23:39,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:39,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447725850] [2022-11-23 15:23:39,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447725850] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:39,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360827564] [2022-11-23 15:23:39,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:39,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:39,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:39,747 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:39,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:23:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:39,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:23:39,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:39,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:23:39,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:23:39,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360827564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:39,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:23:39,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2022-11-23 15:23:39,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099107944] [2022-11-23 15:23:39,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:39,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:23:39,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:39,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:23:39,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:23:39,813 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2022-11-23 15:23:39,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:39,850 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2022-11-23 15:23:39,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:23:39,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2022-11-23 15:23:39,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:39,853 INFO L225 Difference]: With dead ends: 46 [2022-11-23 15:23:39,853 INFO L226 Difference]: Without dead ends: 42 [2022-11-23 15:23:39,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:23:39,855 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 30 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:39,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 20 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:23:39,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-23 15:23:39,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2022-11-23 15:23:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 40 states have internal predecessors, (50), 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) [2022-11-23 15:23:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2022-11-23 15:23:39,862 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 8 [2022-11-23 15:23:39,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:39,863 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2022-11-23 15:23:39,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2022-11-23 15:23:39,863 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2022-11-23 15:23:39,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 15:23:39,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:39,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:39,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:23:40,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:40,070 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 15:23:40,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:40,070 INFO L85 PathProgramCache]: Analyzing trace with hash -242806580, now seen corresponding path program 1 times [2022-11-23 15:23:40,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:40,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976309399] [2022-11-23 15:23:40,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:40,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:23:40,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:40,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976309399] [2022-11-23 15:23:40,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976309399] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:40,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951938132] [2022-11-23 15:23:40,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:40,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:40,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:40,168 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:40,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:23:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:40,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:23:40,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:40,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:23:40,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:23:40,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951938132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:40,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:23:40,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2022-11-23 15:23:40,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304791654] [2022-11-23 15:23:40,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:40,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:23:40,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:40,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:23:40,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:23:40,258 INFO L87 Difference]: Start difference. First operand 41 states and 50 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) [2022-11-23 15:23:40,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:40,342 INFO L93 Difference]: Finished difference Result 89 states and 113 transitions. [2022-11-23 15:23:40,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:23:40,342 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 [2022-11-23 15:23:40,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:40,347 INFO L225 Difference]: With dead ends: 89 [2022-11-23 15:23:40,347 INFO L226 Difference]: Without dead ends: 53 [2022-11-23 15:23:40,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:23:40,351 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 8 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:40,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 37 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:23:40,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-23 15:23:40,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-23 15:23:40,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 52 states have internal predecessors, (63), 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) [2022-11-23 15:23:40,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2022-11-23 15:23:40,367 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 9 [2022-11-23 15:23:40,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:40,367 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2022-11-23 15:23:40,367 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) [2022-11-23 15:23:40,368 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2022-11-23 15:23:40,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 15:23:40,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:40,368 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:40,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:23:40,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:40,578 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 15:23:40,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:40,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1853867429, now seen corresponding path program 1 times [2022-11-23 15:23:40,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:40,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245806512] [2022-11-23 15:23:40,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:40,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:40,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:23:40,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:40,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245806512] [2022-11-23 15:23:40,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245806512] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:40,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330547963] [2022-11-23 15:23:40,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:40,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:40,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:40,684 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:40,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 15:23:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:40,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:23:40,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:40,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:23:40,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:23:40,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330547963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:40,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:23:40,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2022-11-23 15:23:40,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146010700] [2022-11-23 15:23:40,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:40,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:23:40,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:40,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:23:40,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:23:40,792 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-23 15:23:40,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:40,836 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2022-11-23 15:23:40,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:23:40,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2022-11-23 15:23:40,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:40,837 INFO L225 Difference]: With dead ends: 53 [2022-11-23 15:23:40,837 INFO L226 Difference]: Without dead ends: 49 [2022-11-23 15:23:40,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:23:40,839 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:40,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 32 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:23:40,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-23 15:23:40,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2022-11-23 15:23:40,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 32 states have (on average 1.40625) internal successors, (45), 37 states have internal predecessors, (45), 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) [2022-11-23 15:23:40,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2022-11-23 15:23:40,850 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 15 [2022-11-23 15:23:40,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:40,850 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2022-11-23 15:23:40,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-23 15:23:40,850 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2022-11-23 15:23:40,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 15:23:40,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:40,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:40,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 15:23:41,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:41,058 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 15:23:41,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:41,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1632392881, now seen corresponding path program 1 times [2022-11-23 15:23:41,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:41,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981458885] [2022-11-23 15:23:41,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:41,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:41,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:23:41,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:41,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981458885] [2022-11-23 15:23:41,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981458885] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:41,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50540829] [2022-11-23 15:23:41,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:41,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:41,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:41,125 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:41,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 15:23:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:41,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:23:41,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:41,203 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:23:41,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:23:41,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50540829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:41,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:23:41,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2022-11-23 15:23:41,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112145543] [2022-11-23 15:23:41,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:41,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:23:41,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:41,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:23:41,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:23:41,205 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-11-23 15:23:41,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:41,233 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2022-11-23 15:23:41,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:23:41,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2022-11-23 15:23:41,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:41,235 INFO L225 Difference]: With dead ends: 51 [2022-11-23 15:23:41,235 INFO L226 Difference]: Without dead ends: 50 [2022-11-23 15:23:41,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:23:41,236 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 12 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:41,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 44 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:23:41,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-23 15:23:41,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 40. [2022-11-23 15:23:41,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 39 states have internal predecessors, (47), 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) [2022-11-23 15:23:41,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2022-11-23 15:23:41,247 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 16 [2022-11-23 15:23:41,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:41,248 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2022-11-23 15:23:41,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-11-23 15:23:41,248 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2022-11-23 15:23:41,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 15:23:41,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:41,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:41,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 15:23:41,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-23 15:23:41,457 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 15:23:41,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:41,457 INFO L85 PathProgramCache]: Analyzing trace with hash 935428350, now seen corresponding path program 1 times [2022-11-23 15:23:41,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:41,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731532056] [2022-11-23 15:23:41,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:41,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:41,508 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:23:41,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:41,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731532056] [2022-11-23 15:23:41,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731532056] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:41,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252070514] [2022-11-23 15:23:41,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:41,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:41,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:41,510 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:41,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 15:23:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:41,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:23:41,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:41,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:23:41,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:23:41,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252070514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:41,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:23:41,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2022-11-23 15:23:41,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445344427] [2022-11-23 15:23:41,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:41,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:23:41,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:41,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:23:41,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:23:41,595 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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) [2022-11-23 15:23:41,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:41,624 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2022-11-23 15:23:41,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:23:41,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 17 [2022-11-23 15:23:41,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:41,626 INFO L225 Difference]: With dead ends: 51 [2022-11-23 15:23:41,626 INFO L226 Difference]: Without dead ends: 50 [2022-11-23 15:23:41,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:23:41,627 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 10 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 45 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 [2022-11-23 15:23:41,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 45 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:23:41,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-23 15:23:41,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2022-11-23 15:23:41,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 40 states have internal predecessors, (48), 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) [2022-11-23 15:23:41,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2022-11-23 15:23:41,632 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 17 [2022-11-23 15:23:41,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:41,632 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2022-11-23 15:23:41,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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) [2022-11-23 15:23:41,633 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2022-11-23 15:23:41,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 15:23:41,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:41,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:41,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 15:23:41,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-23 15:23:41,839 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 15:23:41,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:41,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1298484522, now seen corresponding path program 1 times [2022-11-23 15:23:41,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:41,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122674456] [2022-11-23 15:23:41,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:41,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:41,917 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:23:41,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:41,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122674456] [2022-11-23 15:23:41,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122674456] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:41,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032243634] [2022-11-23 15:23:41,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:41,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:41,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:41,919 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:41,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 15:23:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:41,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:23:41,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:42,012 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:23:42,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:23:42,046 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:23:42,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032243634] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:23:42,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [971062377] [2022-11-23 15:23:42,067 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-23 15:23:42,067 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:23:42,071 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:23:42,077 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:23:42,078 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:23:42,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:42,239 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:23:42,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-23 15:23:42,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:42,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 15:23:42,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:42,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-23 15:23:42,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:42,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:42,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2022-11-23 15:23:42,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:42,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:42,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:42,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:42,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:42,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:42,616 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-11-23 15:23:42,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 221 treesize of output 209 [2022-11-23 15:23:42,741 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 [2022-11-23 15:23:43,163 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:23:44,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [971062377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:44,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:23:44,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 18 [2022-11-23 15:23:44,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876588567] [2022-11-23 15:23:44,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:44,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 15:23:44,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:44,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 15:23:44,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-11-23 15:23:44,142 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:23:44,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:44,644 INFO L93 Difference]: Finished difference Result 95 states and 110 transitions. [2022-11-23 15:23:44,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 15:23:44,645 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-23 15:23:44,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:44,645 INFO L225 Difference]: With dead ends: 95 [2022-11-23 15:23:44,646 INFO L226 Difference]: Without dead ends: 59 [2022-11-23 15:23:44,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2022-11-23 15:23:44,647 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 130 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:44,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 58 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:23:44,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-23 15:23:44,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 42. [2022-11-23 15:23:44,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 41 states have internal predecessors, (48), 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) [2022-11-23 15:23:44,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2022-11-23 15:23:44,657 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 19 [2022-11-23 15:23:44,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:44,657 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2022-11-23 15:23:44,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:23:44,657 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2022-11-23 15:23:44,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 15:23:44,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:44,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:44,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 15:23:44,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 15:23:44,864 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 15:23:44,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:44,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1298484452, now seen corresponding path program 1 times [2022-11-23 15:23:44,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:44,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780919430] [2022-11-23 15:23:44,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:44,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:23:44,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:44,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780919430] [2022-11-23 15:23:44,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780919430] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:44,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124696869] [2022-11-23 15:23:44,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:44,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:44,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:44,962 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:44,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 15:23:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:45,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:23:45,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:45,060 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:23:45,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:23:45,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:23:45,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124696869] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:23:45,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [493807327] [2022-11-23 15:23:45,096 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-23 15:23:45,097 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:23:45,097 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:23:45,097 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:23:45,097 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:23:45,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:45,137 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:23:45,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-23 15:23:45,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:45,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 15:23:45,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:45,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-23 15:23:45,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:45,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:45,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2022-11-23 15:23:45,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:45,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:45,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:45,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:45,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:45,383 INFO L321 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2022-11-23 15:23:45,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 237 treesize of output 206 [2022-11-23 15:23:45,441 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 [2022-11-23 15:23:45,749 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:23:46,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [493807327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:46,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:23:46,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 19 [2022-11-23 15:23:46,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180782729] [2022-11-23 15:23:46,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:46,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 15:23:46,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:46,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 15:23:46,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2022-11-23 15:23:46,763 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:23:47,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:47,254 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2022-11-23 15:23:47,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 15:23:47,254 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-23 15:23:47,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:47,255 INFO L225 Difference]: With dead ends: 59 [2022-11-23 15:23:47,256 INFO L226 Difference]: Without dead ends: 57 [2022-11-23 15:23:47,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2022-11-23 15:23:47,257 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 81 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:47,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 43 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:23:47,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-23 15:23:47,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 44. [2022-11-23 15:23:47,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 43 states have internal predecessors, (50), 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) [2022-11-23 15:23:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2022-11-23 15:23:47,271 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 19 [2022-11-23 15:23:47,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:47,271 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2022-11-23 15:23:47,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:23:47,272 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2022-11-23 15:23:47,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 15:23:47,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:47,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:47,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 15:23:47,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-23 15:23:47,481 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 15:23:47,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:47,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1619993652, now seen corresponding path program 1 times [2022-11-23 15:23:47,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:47,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819024559] [2022-11-23 15:23:47,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:47,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:47,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:23:47,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:47,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819024559] [2022-11-23 15:23:47,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819024559] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:47,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823436659] [2022-11-23 15:23:47,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:47,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:47,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:47,562 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:47,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 15:23:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:47,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:23:47,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:47,658 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:23:47,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:23:47,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:23:47,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823436659] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:23:47,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1055374620] [2022-11-23 15:23:47,705 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-23 15:23:47,706 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:23:47,706 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:23:47,706 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:23:47,707 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:23:47,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:47,762 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:23:47,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-23 15:23:47,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:47,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 15:23:47,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:47,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-23 15:23:47,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:47,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2022-11-23 15:23:47,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:47,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:47,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:47,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:47,977 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-23 15:23:47,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 247 treesize of output 211 [2022-11-23 15:23:48,032 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 [2022-11-23 15:23:48,610 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:23:50,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1055374620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:50,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:23:50,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4, 4] total 21 [2022-11-23 15:23:50,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083925273] [2022-11-23 15:23:50,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:50,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 15:23:50,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:50,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 15:23:50,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2022-11-23 15:23:50,124 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 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) [2022-11-23 15:23:50,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:50,643 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2022-11-23 15:23:50,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 15:23:50,643 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 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) Word has length 22 [2022-11-23 15:23:50,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:50,644 INFO L225 Difference]: With dead ends: 57 [2022-11-23 15:23:50,644 INFO L226 Difference]: Without dead ends: 53 [2022-11-23 15:23:50,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2022-11-23 15:23:50,645 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 106 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:50,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 36 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:23:50,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-23 15:23:50,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2022-11-23 15:23:50,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 46 states have internal predecessors, (54), 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) [2022-11-23 15:23:50,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2022-11-23 15:23:50,654 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 22 [2022-11-23 15:23:50,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:50,654 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2022-11-23 15:23:50,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 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) [2022-11-23 15:23:50,655 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2022-11-23 15:23:50,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-23 15:23:50,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:50,656 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:50,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-23 15:23:50,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:50,861 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 15:23:50,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:50,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1316756322, now seen corresponding path program 1 times [2022-11-23 15:23:50,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:50,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145444748] [2022-11-23 15:23:50,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:50,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:50,917 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:23:50,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:50,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145444748] [2022-11-23 15:23:50,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145444748] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:50,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78135825] [2022-11-23 15:23:50,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:50,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:50,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:50,920 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:50,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 15:23:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:50,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:23:50,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:51,019 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:23:51,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:23:51,050 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:23:51,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78135825] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:23:51,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1672986538] [2022-11-23 15:23:51,055 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-23 15:23:51,055 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:23:51,056 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:23:51,056 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:23:51,056 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:23:51,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:51,113 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:23:51,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-23 15:23:51,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:51,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 15:23:51,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:51,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-23 15:23:51,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:51,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:51,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2022-11-23 15:23:51,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:51,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:51,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:51,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:51,294 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:51,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:51,309 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-11-23 15:23:51,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 221 treesize of output 209 [2022-11-23 15:23:51,389 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 [2022-11-23 15:23:52,406 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:23:53,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1672986538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:53,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:23:53,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 4, 4] total 22 [2022-11-23 15:23:53,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240878208] [2022-11-23 15:23:53,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:53,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 15:23:53,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:53,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 15:23:53,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2022-11-23 15:23:53,804 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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) [2022-11-23 15:23:54,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:54,615 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2022-11-23 15:23:54,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 15:23:54,615 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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 25 [2022-11-23 15:23:54,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:54,615 INFO L225 Difference]: With dead ends: 51 [2022-11-23 15:23:54,616 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:23:54,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=176, Invalid=694, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:23:54,617 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 56 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:54,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:23:54,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:23:54,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:23:54,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:23:54,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:23:54,619 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-11-23 15:23:54,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:54,619 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:23:54,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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) [2022-11-23 15:23:54,619 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:23:54,620 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:23:54,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-11-23 15:23:54,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-11-23 15:23:54,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-11-23 15:23:54,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-11-23 15:23:54,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2022-11-23 15:23:54,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2022-11-23 15:23:54,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2022-11-23 15:23:54,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2022-11-23 15:23:54,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-11-23 15:23:54,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-11-23 15:23:54,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-11-23 15:23:54,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-11-23 15:23:54,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-11-23 15:23:54,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-11-23 15:23:54,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-11-23 15:23:54,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-11-23 15:23:54,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-23 15:23:54,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-23 15:23:54,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:23:55,680 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-23 15:23:55,680 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2022-11-23 15:23:55,680 INFO L899 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2022-11-23 15:23:55,680 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-23 15:23:55,681 INFO L895 garLoopResultBuilder]: At program point L19-5(lines 19 22) the Hoare annotation is: (let ((.cse1 (<= 1 |ULTIMATE.start_main_~j~0#1|))) (let ((.cse0 (let ((.cse3 (<= 0 |#NULL.base|)) (.cse4 (<= 0 |ULTIMATE.start_main_~#a~0#1.offset|)) (.cse5 (<= |#NULL.offset| 0)) (.cse6 (<= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse7 (<= |#NULL.base| 0)) (.cse8 (<= 0 |#NULL.offset|))) (or (and .cse3 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) .cse4 .cse1 .cse5 (<= |ULTIMATE.start_main_~j~0#1| 2147483647) .cse6 .cse7 .cse8 (<= 0 |#StackHeapBarrier|)) (and .cse3 .cse4 .cse5 (<= 0 |ULTIMATE.start_main_~j~0#1|) .cse6 .cse7 .cse8 (<= |ULTIMATE.start_main_~j~0#1| 0)))))) (or (and .cse0 .cse1) (let ((.cse2 (select |#memory_int| 1))) (and .cse0 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#a~0#1.base|) (= 2 (select |#length| 1)) (= 400000 (select |#length| |ULTIMATE.start_main_~#a~0#1.base|)) (= (select |#valid| 1) 1) (= (select |#valid| |ULTIMATE.start_main_~#a~0#1.base|) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse2 0) 48) (= 30 (select |#length| 2)) (= (select .cse2 1) 0) (< 0 |#StackHeapBarrier|)))))) [2022-11-23 15:23:55,681 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-23 15:23:55,682 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-11-23 15:23:55,682 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 15:23:55,682 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 36) the Hoare annotation is: (let ((.cse0 (<= 0 |#NULL.base|)) (.cse1 (<= 0 |ULTIMATE.start_main_~swapped~0#1|)) (.cse2 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse12 (<= 1 |ULTIMATE.start_main_~i~0#1|)) (.cse3 (<= 0 |ULTIMATE.start_main_~#a~0#1.offset|)) (.cse4 (<= |#NULL.offset| 0)) (.cse5 (<= |ULTIMATE.start_main_~swapped~0#1| 0)) (.cse6 (<= |ULTIMATE.start_main_~j~0#1| 2147483647)) (.cse7 (<= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse8 (<= |#NULL.base| 0)) (.cse9 (<= 100000 |ULTIMATE.start_main_~j~0#1|)) (.cse10 (<= 0 |#NULL.offset|)) (.cse11 (<= 0 |#StackHeapBarrier|))) (or (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse3 .cse4 .cse5 .cse6 .cse7 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse8 .cse9 .cse10 .cse11) (and .cse0 (<= |ULTIMATE.start_main_~swapped~0#1| 1) .cse2 .cse12 .cse3 .cse4 .cse6 .cse7 .cse8 .cse9 (<= 1 |ULTIMATE.start_main_~swapped~0#1|) .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse12 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (<= |ULTIMATE.start_main_~i~0#1| 1) .cse11))) [2022-11-23 15:23:55,682 INFO L895 garLoopResultBuilder]: At program point L28-3(lines 25 37) the Hoare annotation is: (let ((.cse0 (<= 0 |#NULL.base|)) (.cse1 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse2 (<= 0 |ULTIMATE.start_main_~#a~0#1.offset|)) (.cse3 (<= |#NULL.offset| 0)) (.cse4 (<= |ULTIMATE.start_main_~j~0#1| 2147483647)) (.cse5 (<= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse6 (<= |#NULL.base| 0)) (.cse7 (<= 100000 |ULTIMATE.start_main_~j~0#1|)) (.cse8 (<= 0 |#NULL.offset|)) (.cse9 (<= 0 |#StackHeapBarrier|))) (or (and .cse0 (<= |ULTIMATE.start_main_~swapped~0#1| 1) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (<= 1 |ULTIMATE.start_main_~swapped~0#1|) .cse8 .cse9) (and .cse0 (<= 0 |ULTIMATE.start_main_~swapped~0#1|) (<= 100000 |ULTIMATE.start_main_~i~0#1|) .cse1 (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse2 .cse3 (<= |ULTIMATE.start_main_~swapped~0#1| 0) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) [2022-11-23 15:23:55,683 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-23 15:23:55,683 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-11-23 15:23:55,683 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-11-23 15:23:55,683 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2022-11-23 15:23:55,683 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 29 34) no Hoare annotation was computed. [2022-11-23 15:23:55,683 INFO L899 garLoopResultBuilder]: For program point L29-4(lines 29 34) no Hoare annotation was computed. [2022-11-23 15:23:55,684 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-23 15:23:55,684 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-11-23 15:23:55,684 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-11-23 15:23:55,684 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2022-11-23 15:23:55,684 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-11-23 15:23:55,684 INFO L899 garLoopResultBuilder]: For program point L40-3(line 40) no Hoare annotation was computed. [2022-11-23 15:23:55,685 INFO L899 garLoopResultBuilder]: For program point L40-4(line 40) no Hoare annotation was computed. [2022-11-23 15:23:55,685 INFO L895 garLoopResultBuilder]: At program point L40-5(lines 40 44) the Hoare annotation is: (let ((.cse0 (<= 100000 |ULTIMATE.start_main_~i~0#1|)) (.cse1 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse2 (<= |ULTIMATE.start_main_~i~0#1| 2147483647)) (.cse3 (<= |ULTIMATE.start_main_~j~0#1| 2147483647)) (.cse4 (= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse5 (<= 100000 |ULTIMATE.start_main_~j~0#1|)) (.cse6 (= |#NULL.offset| 0)) (.cse7 (= |ULTIMATE.start_main_~swapped~0#1| 0)) (.cse8 (<= 0 |#StackHeapBarrier|)) (.cse9 (= |#NULL.base| 0))) (or (and .cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|) .cse1 .cse2 (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) .cse3 .cse4 .cse5 .cse6 (<= |ULTIMATE.start_main_~y~0#1| 2147483647) .cse7 .cse8 .cse9) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~x~0#1| 0) .cse7 .cse8 .cse9))) [2022-11-23 15:23:55,685 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-23 15:23:55,685 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-11-23 15:23:55,686 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-23 15:23:55,686 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-11-23 15:23:55,686 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-11-23 15:23:55,686 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2022-11-23 15:23:55,686 INFO L899 garLoopResultBuilder]: For program point L41-5(line 41) no Hoare annotation was computed. [2022-11-23 15:23:55,686 INFO L899 garLoopResultBuilder]: For program point L41-6(line 41) no Hoare annotation was computed. [2022-11-23 15:23:55,687 INFO L895 garLoopResultBuilder]: At program point L41-7(lines 41 43) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 100000) (<= 100000 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (<= 100000 |ULTIMATE.start_main_~j~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= |ULTIMATE.start_main_~swapped~0#1| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-11-23 15:23:55,687 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:23:55,687 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-23 15:23:55,687 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-11-23 15:23:55,687 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-23 15:23:55,688 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-23 15:23:55,688 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-23 15:23:55,688 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-11-23 15:23:55,691 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:55,694 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:23:55,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:23:55 BoogieIcfgContainer [2022-11-23 15:23:55,735 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:23:55,736 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:23:55,736 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:23:55,736 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:23:55,736 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:23:37" (3/4) ... [2022-11-23 15:23:55,739 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:23:55,750 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-23 15:23:55,761 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-23 15:23:55,761 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 15:23:55,762 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:23:55,811 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:23:55,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:23:55,813 INFO L158 Benchmark]: Toolchain (without parser) took 19434.47ms. Allocated memory was 130.0MB in the beginning and 237.0MB in the end (delta: 107.0MB). Free memory was 99.6MB in the beginning and 97.6MB in the end (delta: 2.0MB). Peak memory consumption was 110.3MB. Max. memory is 16.1GB. [2022-11-23 15:23:55,813 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 107.0MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:23:55,813 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.63ms. Allocated memory is still 130.0MB. Free memory was 99.6MB in the beginning and 89.3MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 15:23:55,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.84ms. Allocated memory is still 130.0MB. Free memory was 89.3MB in the beginning and 87.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:23:55,814 INFO L158 Benchmark]: Boogie Preprocessor took 60.31ms. Allocated memory is still 130.0MB. Free memory was 87.2MB in the beginning and 86.2MB in the end (delta: 964.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:23:55,814 INFO L158 Benchmark]: RCFGBuilder took 660.37ms. Allocated memory is still 130.0MB. Free memory was 86.2MB in the beginning and 71.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 15:23:55,815 INFO L158 Benchmark]: TraceAbstraction took 18217.70ms. Allocated memory was 130.0MB in the beginning and 237.0MB in the end (delta: 107.0MB). Free memory was 70.5MB in the beginning and 100.7MB in the end (delta: -30.3MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. [2022-11-23 15:23:55,815 INFO L158 Benchmark]: Witness Printer took 76.39ms. Allocated memory is still 237.0MB. Free memory was 100.7MB in the beginning and 97.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:23:55,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 107.0MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.63ms. Allocated memory is still 130.0MB. Free memory was 99.6MB in the beginning and 89.3MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.84ms. Allocated memory is still 130.0MB. Free memory was 89.3MB in the beginning and 87.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.31ms. Allocated memory is still 130.0MB. Free memory was 87.2MB in the beginning and 86.2MB in the end (delta: 964.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 660.37ms. Allocated memory is still 130.0MB. Free memory was 86.2MB in the beginning and 71.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 18217.70ms. Allocated memory was 130.0MB in the beginning and 237.0MB in the end (delta: 107.0MB). Free memory was 70.5MB in the beginning and 100.7MB in the end (delta: -30.3MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. * Witness Printer took 76.39ms. Allocated memory is still 237.0MB. Free memory was 100.7MB in the beginning and 97.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 18.1s, OverallIterations: 13, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 548 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 548 mSDsluCounter, 641 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 356 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1030 IncrementalHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 285 mSDtfsCounter, 1030 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 383 GetRequests, 252 SyntacticMatches, 6 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=6, InterpolantAutomatonStates: 81, 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, 13 MinimizatonAttempts, 81 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 16 NumberOfFragments, 504 HoareAnnotationTreeSize, 5 FomulaSimplifications, 164 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 1406 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 338 NumberOfCodeBlocks, 338 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 395 ConstructedInterpolants, 0 QuantifiedInterpolants, 593 SizeOfPredicates, 6 NumberOfNonLiveVariables, 822 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 28 InterpolantComputations, 9 PerfectInterpolantSequences, 61/81 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 4.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 99, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 362, TOOLS_POST_TIME: 3.0s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 315, TOOLS_QUANTIFIERELIM_TIME: 2.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 587, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 63, DOMAIN_JOIN_TIME: 0.4s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 21, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 57, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 99, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 36, LOOP_SUMMARIZER_CACHE_MISSES: 36, LOOP_SUMMARIZER_OVERALL_TIME: 2.6s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.6s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 57, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 4625, DAG_COMPRESSION_RETAINED_NODES: 313, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: ((((((((((((x <= 100000 && 100000 <= i) && 0 <= x) && 0 <= a) && i <= 2147483647) && 1 <= y) && j <= 2147483647) && a == 0) && 100000 <= j) && #NULL == 0) && y <= 2147483647) && swapped == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((((((((((0 <= #NULL && 0 <= a) && 0 <= a) && 1 <= j) && #NULL <= 0) && j <= 2147483647) && a <= 0) && #NULL <= 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((0 <= #NULL && 0 <= a) && #NULL <= 0) && 0 <= j) && a <= 0) && #NULL <= 0) && 0 <= #NULL) && j <= 0)) && 1 <= j) || (((((((((((((((((((((0 <= #NULL && 0 <= a) && 0 <= a) && 1 <= j) && #NULL <= 0) && j <= 2147483647) && a <= 0) && #NULL <= 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((0 <= #NULL && 0 <= a) && #NULL <= 0) && 0 <= j) && a <= 0) && #NULL <= 0) && 0 <= #NULL) && j <= 0)) && unknown-#StackHeapBarrier-unknown < a) && 2 == unknown-#length-unknown[1]) && 400000 == unknown-#length-unknown[a]) && \valid[1] == 1) && \valid[a] == 1) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && 30 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((((((100000 <= i && 0 <= x) && 0 <= a) && i <= 2147483647) && 1 <= y) && x <= 2147483647) && j <= 2147483647) && a == 0) && 100000 <= j) && #NULL == 0) && y <= 2147483647) && swapped == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((100000 <= i && 0 <= a) && i <= 2147483647) && j <= 2147483647) && a == 0) && 100000 <= j) && #NULL == 0) && x == 0) && swapped == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((((((((((((0 <= #NULL && 0 <= swapped) && 0 <= a) && i <= 2147483647) && 0 <= a) && #NULL <= 0) && swapped <= 0) && j <= 2147483647) && a <= 0) && 2 <= i) && #NULL <= 0) && 100000 <= j) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) || ((((((((((((0 <= #NULL && swapped <= 1) && 0 <= a) && 1 <= i) && 0 <= a) && #NULL <= 0) && j <= 2147483647) && a <= 0) && #NULL <= 0) && 100000 <= j) && 1 <= swapped) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown)) || (((((((((((((0 <= #NULL && 0 <= swapped) && 0 <= a) && 1 <= i) && 0 <= a) && #NULL <= 0) && swapped <= 0) && j <= 2147483647) && a <= 0) && #NULL <= 0) && 100000 <= j) && 0 <= #NULL) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((((((((((0 <= #NULL && swapped <= 1) && 0 <= a) && 0 <= a) && #NULL <= 0) && j <= 2147483647) && a <= 0) && #NULL <= 0) && 100000 <= j) && 1 <= swapped) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((((((((0 <= #NULL && 0 <= swapped) && 100000 <= i) && 0 <= a) && i <= 2147483647) && 0 <= a) && #NULL <= 0) && swapped <= 0) && j <= 2147483647) && a <= 0) && #NULL <= 0) && 100000 <= j) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) RESULT: Ultimate proved your program to be correct! [2022-11-23 15:23:55,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25eaad6-ab33-4a97-9fd0-a855c244b05b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE