./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/aaron3-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/aaron3-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ea9406930e45e60de12baf697b969fb5af8dbe89b8e2edfb7dfc533c91e7fcaa --- 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-2329fc7 [2022-12-14 13:04:25,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:04:25,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:04:25,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:04:25,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:04:25,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:04:25,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:04:25,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:04:25,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:04:25,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:04:25,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:04:25,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:04:25,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:04:25,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:04:25,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:04:25,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:04:25,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:04:25,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:04:25,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:04:25,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:04:25,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:04:25,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:04:25,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:04:25,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:04:25,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:04:25,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:04:25,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:04:25,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:04:25,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:04:25,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:04:25,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:04:25,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:04:25,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:04:25,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:04:25,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:04:25,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:04:25,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:04:25,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:04:25,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:04:25,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:04:25,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:04:25,566 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 13:04:25,588 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:04:25,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:04:25,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:04:25,588 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:04:25,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:04:25,589 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:04:25,590 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:04:25,590 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:04:25,590 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:04:25,590 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:04:25,590 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:04:25,591 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:04:25,591 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:04:25,591 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:04:25,591 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:04:25,591 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:04:25,592 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:04:25,592 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:04:25,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:04:25,593 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:04:25,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:04:25,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:04:25,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:04:25,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:04:25,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:04:25,594 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:04:25,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:04:25,594 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:04:25,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:04:25,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:04:25,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:04:25,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:04:25,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:04:25,596 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:04:25,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:04:25,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:04:25,596 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:04:25,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:04:25,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:04:25,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:04:25,597 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_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea9406930e45e60de12baf697b969fb5af8dbe89b8e2edfb7dfc533c91e7fcaa [2022-12-14 13:04:25,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:04:25,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:04:25,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:04:25,827 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:04:25,827 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:04:25,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/termination-crafted/aaron3-1.c [2022-12-14 13:04:28,390 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:04:28,535 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:04:28,535 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/sv-benchmarks/c/termination-crafted/aaron3-1.c [2022-12-14 13:04:28,539 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/data/409d2f224/dcb321482ad64198828cdb8c36993e64/FLAGcb36a2a50 [2022-12-14 13:04:28,965 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/data/409d2f224/dcb321482ad64198828cdb8c36993e64 [2022-12-14 13:04:28,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:04:28,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:04:28,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:04:28,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:04:28,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:04:28,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:04:28" (1/1) ... [2022-12-14 13:04:28,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a04939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:28, skipping insertion in model container [2022-12-14 13:04:28,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:04:28" (1/1) ... [2022-12-14 13:04:28,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:04:28,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:04:29,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:04:29,111 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:04:29,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:04:29,130 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:04:29,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:29 WrapperNode [2022-12-14 13:04:29,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:04:29,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:04:29,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:04:29,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:04:29,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:29" (1/1) ... [2022-12-14 13:04:29,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:29" (1/1) ... [2022-12-14 13:04:29,153 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2022-12-14 13:04:29,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:04:29,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:04:29,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:04:29,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:04:29,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:29" (1/1) ... [2022-12-14 13:04:29,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:29" (1/1) ... [2022-12-14 13:04:29,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:29" (1/1) ... [2022-12-14 13:04:29,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:29" (1/1) ... [2022-12-14 13:04:29,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:29" (1/1) ... [2022-12-14 13:04:29,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:29" (1/1) ... [2022-12-14 13:04:29,166 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:29" (1/1) ... [2022-12-14 13:04:29,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:29" (1/1) ... [2022-12-14 13:04:29,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:04:29,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:04:29,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:04:29,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:04:29,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:29" (1/1) ... [2022-12-14 13:04:29,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:04:29,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:04:29,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:04:29,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:04:29,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:04:29,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:04:29,288 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:04:29,290 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:04:29,376 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:04:29,385 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:04:29,385 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:04:29,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:04:29 BoogieIcfgContainer [2022-12-14 13:04:29,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:04:29,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:04:29,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:04:29,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:04:29,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:04:28" (1/3) ... [2022-12-14 13:04:29,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2ce195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:04:29, skipping insertion in model container [2022-12-14 13:04:29,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:04:29" (2/3) ... [2022-12-14 13:04:29,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2ce195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:04:29, skipping insertion in model container [2022-12-14 13:04:29,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:04:29" (3/3) ... [2022-12-14 13:04:29,395 INFO L112 eAbstractionObserver]: Analyzing ICFG aaron3-1.c [2022-12-14 13:04:29,410 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:04:29,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 13:04:29,448 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:04:29,454 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;@63846051, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:04:29,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 13:04:29,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 24 states have internal predecessors, (33), 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) [2022-12-14 13:04:29,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 13:04:29,462 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:29,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:29,463 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 13:04:29,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:29,469 INFO L85 PathProgramCache]: Analyzing trace with hash 464864814, now seen corresponding path program 1 times [2022-12-14 13:04:29,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:04:29,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56827384] [2022-12-14 13:04:29,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:29,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:04:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:29,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:04:29,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:04:29,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56827384] [2022-12-14 13:04:29,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56827384] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:29,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:29,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:04:29,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672706724] [2022-12-14 13:04:29,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:29,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:04:29,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:04:29,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:04:29,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:04:29,670 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 24 states have internal predecessors, (33), 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 2.6666666666666665) internal successors, (8), 4 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) [2022-12-14 13:04:29,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:29,752 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-12-14 13:04:29,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:04:29,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2022-12-14 13:04:29,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:29,760 INFO L225 Difference]: With dead ends: 49 [2022-12-14 13:04:29,760 INFO L226 Difference]: Without dead ends: 37 [2022-12-14 13:04:29,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:04:29,764 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 44 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:29,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 54 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:04:29,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-12-14 13:04:29,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2022-12-14 13:04:29,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 29 states have internal predecessors, (37), 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) [2022-12-14 13:04:29,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2022-12-14 13:04:29,797 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 8 [2022-12-14 13:04:29,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:29,797 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2022-12-14 13:04:29,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2022-12-14 13:04:29,797 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2022-12-14 13:04:29,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 13:04:29,798 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:29,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:29,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:04:29,798 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 13:04:29,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:29,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1525907410, now seen corresponding path program 1 times [2022-12-14 13:04:29,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:04:29,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800915192] [2022-12-14 13:04:29,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:29,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:04:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:29,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:04:29,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:04:29,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800915192] [2022-12-14 13:04:29,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800915192] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:29,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:29,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:04:29,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048869828] [2022-12-14 13:04:29,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:29,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:04:29,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:04:29,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:04:29,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:04:29,849 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-12-14 13:04:29,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:29,887 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-12-14 13:04:29,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:04:29,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 [2022-12-14 13:04:29,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:29,889 INFO L225 Difference]: With dead ends: 37 [2022-12-14 13:04:29,889 INFO L226 Difference]: Without dead ends: 36 [2022-12-14 13:04:29,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:04:29,890 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 30 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 42 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 [2022-12-14 13:04:29,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 42 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:04:29,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-14 13:04:29,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2022-12-14 13:04:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.5) internal successors, (36), 29 states have internal predecessors, (36), 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) [2022-12-14 13:04:29,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2022-12-14 13:04:29,895 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 9 [2022-12-14 13:04:29,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:29,895 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2022-12-14 13:04:29,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-12-14 13:04:29,895 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-12-14 13:04:29,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 13:04:29,896 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:29,896 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:29,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:04:29,896 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 13:04:29,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:29,897 INFO L85 PathProgramCache]: Analyzing trace with hash 58678580, now seen corresponding path program 1 times [2022-12-14 13:04:29,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:04:29,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401381997] [2022-12-14 13:04:29,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:29,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:04:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:29,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:04:29,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:04:29,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401381997] [2022-12-14 13:04:29,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401381997] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:29,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:29,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:04:29,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426130874] [2022-12-14 13:04:29,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:29,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:04:29,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:04:29,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:04:29,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:04:29,923 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:04:29,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:29,934 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2022-12-14 13:04:29,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:04:29,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 13:04:29,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:29,935 INFO L225 Difference]: With dead ends: 57 [2022-12-14 13:04:29,935 INFO L226 Difference]: Without dead ends: 30 [2022-12-14 13:04:29,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:04:29,937 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:29,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:04:29,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-14 13:04:29,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-12-14 13:04:29,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:04:29,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-12-14 13:04:29,941 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 10 [2022-12-14 13:04:29,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:29,941 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-12-14 13:04:29,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:04:29,941 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-12-14 13:04:29,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 13:04:29,942 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:29,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:29,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 13:04:29,942 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 13:04:29,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:29,943 INFO L85 PathProgramCache]: Analyzing trace with hash 373862392, now seen corresponding path program 1 times [2022-12-14 13:04:29,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:04:29,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246919862] [2022-12-14 13:04:29,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:29,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:04:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:29,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:04:29,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:04:29,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246919862] [2022-12-14 13:04:29,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246919862] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:29,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:29,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 13:04:29,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664978359] [2022-12-14 13:04:29,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:29,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:04:29,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:04:29,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:04:29,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:04:29,983 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-12-14 13:04:29,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:29,994 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-12-14 13:04:29,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:04:29,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2022-12-14 13:04:29,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:29,995 INFO L225 Difference]: With dead ends: 30 [2022-12-14 13:04:29,995 INFO L226 Difference]: Without dead ends: 29 [2022-12-14 13:04:29,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:04:29,996 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:29,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:04:29,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-14 13:04:30,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-12-14 13:04:30,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 28 states have internal predecessors, (32), 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) [2022-12-14 13:04:30,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-12-14 13:04:30,000 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 12 [2022-12-14 13:04:30,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:30,001 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-12-14 13:04:30,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-12-14 13:04:30,001 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-12-14 13:04:30,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 13:04:30,001 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:30,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:30,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 13:04:30,002 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 13:04:30,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:30,002 INFO L85 PathProgramCache]: Analyzing trace with hash 373862040, now seen corresponding path program 1 times [2022-12-14 13:04:30,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:04:30,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379640422] [2022-12-14 13:04:30,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:30,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:04:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:30,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:04:30,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:04:30,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379640422] [2022-12-14 13:04:30,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379640422] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:30,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:30,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:04:30,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69235698] [2022-12-14 13:04:30,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:30,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:04:30,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:04:30,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:04:30,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:04:30,037 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-12-14 13:04:30,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:30,058 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-12-14 13:04:30,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:04:30,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-12-14 13:04:30,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:30,058 INFO L225 Difference]: With dead ends: 33 [2022-12-14 13:04:30,059 INFO L226 Difference]: Without dead ends: 32 [2022-12-14 13:04:30,059 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 [2022-12-14 13:04:30,060 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:30,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 26 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:04:30,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-12-14 13:04:30,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2022-12-14 13:04:30,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.32) internal successors, (33), 29 states have internal predecessors, (33), 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) [2022-12-14 13:04:30,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-12-14 13:04:30,063 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 12 [2022-12-14 13:04:30,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:30,063 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-12-14 13:04:30,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-12-14 13:04:30,064 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-12-14 13:04:30,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 13:04:30,064 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:30,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:30,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 13:04:30,064 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 13:04:30,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:30,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1295167646, now seen corresponding path program 1 times [2022-12-14 13:04:30,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:04:30,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111470569] [2022-12-14 13:04:30,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:30,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:04:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:30,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:04:30,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:04:30,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111470569] [2022-12-14 13:04:30,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111470569] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:30,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:30,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:04:30,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820828854] [2022-12-14 13:04:30,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:30,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:04:30,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:04:30,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:04:30,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:04:30,092 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-14 13:04:30,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:30,107 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2022-12-14 13:04:30,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:04:30,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-12-14 13:04:30,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:30,108 INFO L225 Difference]: With dead ends: 55 [2022-12-14 13:04:30,108 INFO L226 Difference]: Without dead ends: 54 [2022-12-14 13:04:30,108 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 [2022-12-14 13:04:30,109 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 8 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:30,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 34 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:04:30,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-12-14 13:04:30,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2022-12-14 13:04:30,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 49 states have internal predecessors, (59), 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) [2022-12-14 13:04:30,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2022-12-14 13:04:30,114 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 13 [2022-12-14 13:04:30,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:30,114 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2022-12-14 13:04:30,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-14 13:04:30,114 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2022-12-14 13:04:30,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 13:04:30,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:30,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:30,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 13:04:30,115 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 13:04:30,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:30,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1295178569, now seen corresponding path program 1 times [2022-12-14 13:04:30,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:04:30,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185990521] [2022-12-14 13:04:30,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:30,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:04:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:30,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:04:30,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:04:30,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185990521] [2022-12-14 13:04:30,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185990521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:30,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:04:30,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 13:04:30,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377944480] [2022-12-14 13:04:30,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:30,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:04:30,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:04:30,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:04:30,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:04:30,142 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-12-14 13:04:30,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:30,158 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2022-12-14 13:04:30,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:04:30,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2022-12-14 13:04:30,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:30,159 INFO L225 Difference]: With dead ends: 50 [2022-12-14 13:04:30,159 INFO L226 Difference]: Without dead ends: 49 [2022-12-14 13:04:30,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:04:30,160 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:30,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 12 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:04:30,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-12-14 13:04:30,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-12-14 13:04:30,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 48 states have internal predecessors, (57), 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) [2022-12-14 13:04:30,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2022-12-14 13:04:30,168 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 13 [2022-12-14 13:04:30,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:30,168 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2022-12-14 13:04:30,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-12-14 13:04:30,168 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2022-12-14 13:04:30,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 13:04:30,169 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:30,169 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:30,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 13:04:30,169 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 13:04:30,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:30,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1982530082, now seen corresponding path program 1 times [2022-12-14 13:04:30,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:04:30,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876981013] [2022-12-14 13:04:30,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:30,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:04:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:30,229 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:04:30,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:04:30,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876981013] [2022-12-14 13:04:30,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876981013] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:04:30,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862965085] [2022-12-14 13:04:30,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:30,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:04:30,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:04:30,230 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:04:30,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:04:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:30,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:04:30,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:30,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:04:30,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:04:30,422 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:04:30,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862965085] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:04:30,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1427479654] [2022-12-14 13:04:30,441 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 13:04:30,442 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:04:30,445 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:04:30,450 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:04:30,451 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:04:30,776 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:04:31,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1427479654] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:31,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:04:31,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4, 4] total 21 [2022-12-14 13:04:31,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755595330] [2022-12-14 13:04:31,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:31,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 13:04:31,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:04:31,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 13:04:31,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2022-12-14 13:04:31,404 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 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) [2022-12-14 13:04:31,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:31,996 INFO L93 Difference]: Finished difference Result 79 states and 89 transitions. [2022-12-14 13:04:31,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 13:04:31,996 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 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 17 [2022-12-14 13:04:31,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:31,997 INFO L225 Difference]: With dead ends: 79 [2022-12-14 13:04:31,997 INFO L226 Difference]: Without dead ends: 76 [2022-12-14 13:04:31,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=297, Invalid=695, Unknown=0, NotChecked=0, Total=992 [2022-12-14 13:04:31,999 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 57 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:31,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 14 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:04:32,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-12-14 13:04:32,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 40. [2022-12-14 13:04:32,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 39 states have internal predecessors, (44), 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) [2022-12-14 13:04:32,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2022-12-14 13:04:32,004 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 17 [2022-12-14 13:04:32,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:32,004 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2022-12-14 13:04:32,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 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) [2022-12-14 13:04:32,005 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2022-12-14 13:04:32,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 13:04:32,005 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:32,005 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:32,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:04:32,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:04:32,208 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 13:04:32,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:32,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1791888791, now seen corresponding path program 1 times [2022-12-14 13:04:32,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:04:32,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815969007] [2022-12-14 13:04:32,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:32,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:04:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:32,319 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:04:32,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:04:32,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815969007] [2022-12-14 13:04:32,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815969007] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:04:32,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103708990] [2022-12-14 13:04:32,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:32,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:04:32,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:04:32,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:04:32,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 13:04:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:32,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:04:32,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:32,378 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:04:32,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:04:32,403 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:04:32,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103708990] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:04:32,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2025447959] [2022-12-14 13:04:32,405 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-12-14 13:04:32,405 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:04:32,405 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:04:32,406 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:04:32,406 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:04:32,483 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:04:32,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2025447959] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:32,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:04:32,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [3, 3, 3] total 15 [2022-12-14 13:04:32,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366842930] [2022-12-14 13:04:32,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:32,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 13:04:32,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:04:32,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 13:04:32,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-12-14 13:04:32,893 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-12-14 13:04:32,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:32,964 INFO L93 Difference]: Finished difference Result 96 states and 106 transitions. [2022-12-14 13:04:32,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 13:04:32,965 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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 21 [2022-12-14 13:04:32,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:32,965 INFO L225 Difference]: With dead ends: 96 [2022-12-14 13:04:32,965 INFO L226 Difference]: Without dead ends: 95 [2022-12-14 13:04:32,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-12-14 13:04:32,966 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:32,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 12 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:04:32,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-12-14 13:04:32,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 54. [2022-12-14 13:04:32,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.2) internal successors, (60), 53 states have internal predecessors, (60), 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) [2022-12-14 13:04:32,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2022-12-14 13:04:32,973 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 21 [2022-12-14 13:04:32,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:32,974 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2022-12-14 13:04:32,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-12-14 13:04:32,974 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2022-12-14 13:04:32,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 13:04:32,974 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:32,975 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:32,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 13:04:33,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:04:33,176 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 13:04:33,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:33,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1171154541, now seen corresponding path program 1 times [2022-12-14 13:04:33,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:04:33,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40331754] [2022-12-14 13:04:33,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:33,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:04:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:33,246 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 13:04:33,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:04:33,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40331754] [2022-12-14 13:04:33,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40331754] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:04:33,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029234775] [2022-12-14 13:04:33,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:33,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:04:33,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:04:33,247 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:04:33,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 13:04:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:33,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:04:33,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:33,334 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 13:04:33,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:04:33,376 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 13:04:33,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029234775] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:04:33,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1476690836] [2022-12-14 13:04:33,379 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-12-14 13:04:33,379 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:04:33,379 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:04:33,379 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:04:33,379 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:04:33,518 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:04:33,875 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1375#(and (<= |ULTIMATE.start_main_~x~0#1| 1073741823) (<= 0 (+ 1073741823 |ULTIMATE.start_main_~x~0#1|)) (not (<= 0 (+ |ULTIMATE.start_main_~tx~0#1| |ULTIMATE.start_main_~z~0#1| 2147483648))) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_#t~short4#1| (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~z~0#1|)) (<= 0 (+ 1073741823 |ULTIMATE.start_main_~tx~0#1|)))' at error location [2022-12-14 13:04:33,875 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:04:33,875 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:04:33,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-12-14 13:04:33,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222755678] [2022-12-14 13:04:33,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:04:33,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 13:04:33,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:04:33,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 13:04:33,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2022-12-14 13:04:33,878 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 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) [2022-12-14 13:04:33,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:33,937 INFO L93 Difference]: Finished difference Result 101 states and 112 transitions. [2022-12-14 13:04:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 13:04:33,937 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 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 [2022-12-14 13:04:33,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:33,938 INFO L225 Difference]: With dead ends: 101 [2022-12-14 13:04:33,938 INFO L226 Difference]: Without dead ends: 99 [2022-12-14 13:04:33,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2022-12-14 13:04:33,939 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 40 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:33,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 75 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:04:33,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-12-14 13:04:33,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2022-12-14 13:04:33,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 86 states have (on average 1.186046511627907) internal successors, (102), 89 states have internal predecessors, (102), 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) [2022-12-14 13:04:33,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2022-12-14 13:04:33,949 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 25 [2022-12-14 13:04:33,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:33,949 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2022-12-14 13:04:33,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 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) [2022-12-14 13:04:33,950 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2022-12-14 13:04:33,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 13:04:33,950 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:33,950 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:33,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 13:04:34,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:04:34,152 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 13:04:34,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:34,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1946052339, now seen corresponding path program 1 times [2022-12-14 13:04:34,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:04:34,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801011776] [2022-12-14 13:04:34,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:34,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:04:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:34,227 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 13:04:34,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:04:34,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801011776] [2022-12-14 13:04:34,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801011776] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:04:34,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911673474] [2022-12-14 13:04:34,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:34,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:04:34,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:04:34,229 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:04:34,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 13:04:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:34,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:04:34,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:34,323 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 13:04:34,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:04:34,364 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 13:04:34,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911673474] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:04:34,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [617649258] [2022-12-14 13:04:34,366 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-12-14 13:04:34,366 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:04:34,366 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:04:34,366 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:04:34,367 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:04:34,473 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:04:34,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [617649258] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:04:34,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:04:34,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4, 4] total 21 [2022-12-14 13:04:34,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718902129] [2022-12-14 13:04:34,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:04:34,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 13:04:34,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:04:34,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 13:04:34,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-12-14 13:04:34,842 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:04:35,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:35,440 INFO L93 Difference]: Finished difference Result 110 states and 129 transitions. [2022-12-14 13:04:35,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 13:04:35,440 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-12-14 13:04:35,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:35,441 INFO L225 Difference]: With dead ends: 110 [2022-12-14 13:04:35,441 INFO L226 Difference]: Without dead ends: 107 [2022-12-14 13:04:35,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=385, Invalid=875, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 13:04:35,442 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:35,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:04:35,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-12-14 13:04:35,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 66. [2022-12-14 13:04:35,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.1076923076923078) internal successors, (72), 65 states have internal predecessors, (72), 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) [2022-12-14 13:04:35,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2022-12-14 13:04:35,447 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 26 [2022-12-14 13:04:35,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:35,447 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2022-12-14 13:04:35,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:04:35,447 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2022-12-14 13:04:35,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 13:04:35,448 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:04:35,448 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:35,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 13:04:35,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 13:04:35,649 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 13:04:35,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:04:35,650 INFO L85 PathProgramCache]: Analyzing trace with hash -631828397, now seen corresponding path program 2 times [2022-12-14 13:04:35,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:04:35,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132446584] [2022-12-14 13:04:35,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:04:35,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:04:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:04:35,841 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 13:04:35,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:04:35,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132446584] [2022-12-14 13:04:35,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132446584] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:04:35,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045791692] [2022-12-14 13:04:35,841 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 13:04:35,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:04:35,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:04:35,842 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:04:35,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 13:04:35,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 13:04:35,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:04:35,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 13:04:35,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:04:36,015 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 13:04:36,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:04:36,221 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 13:04:36,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045791692] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:04:36,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1440351825] [2022-12-14 13:04:36,224 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-12-14 13:04:36,224 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:04:36,224 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:04:36,224 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:04:36,224 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:04:36,337 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:04:36,915 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2275#(and (<= |ULTIMATE.start_main_~x~0#1| 1073741823) (<= 0 (+ 1073741823 |ULTIMATE.start_main_~x~0#1|)) (not (<= 0 (+ |ULTIMATE.start_main_~tx~0#1| |ULTIMATE.start_main_~z~0#1| 2147483648))) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_#t~short4#1| (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~z~0#1|)) (<= 0 (+ 1073741823 |ULTIMATE.start_main_~tx~0#1|)))' at error location [2022-12-14 13:04:36,915 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:04:36,915 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:04:36,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 26 [2022-12-14 13:04:36,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931969196] [2022-12-14 13:04:36,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:04:36,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-14 13:04:36,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:04:36,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-14 13:04:36,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1337, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 13:04:36,917 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand has 27 states, 26 states have (on average 4.115384615384615) internal successors, (107), 27 states have internal predecessors, (107), 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) [2022-12-14 13:04:37,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:04:37,417 INFO L93 Difference]: Finished difference Result 99 states and 107 transitions. [2022-12-14 13:04:37,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 13:04:37,417 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.115384615384615) internal successors, (107), 27 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-12-14 13:04:37,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:04:37,418 INFO L225 Difference]: With dead ends: 99 [2022-12-14 13:04:37,418 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 13:04:37,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 98 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 814 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=572, Invalid=2620, Unknown=0, NotChecked=0, Total=3192 [2022-12-14 13:04:37,419 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 120 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:04:37,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 172 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:04:37,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 13:04:37,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 13:04:37,419 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) [2022-12-14 13:04:37,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 13:04:37,420 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2022-12-14 13:04:37,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:04:37,420 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 13:04:37,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.115384615384615) internal successors, (107), 27 states have internal predecessors, (107), 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) [2022-12-14 13:04:37,420 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 13:04:37,420 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 13:04:37,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-14 13:04:37,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-14 13:04:37,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-14 13:04:37,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-14 13:04:37,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-14 13:04:37,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-14 13:04:37,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-14 13:04:37,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 13:04:37,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 13:04:38,085 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-14 13:04:38,085 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-12-14 13:04:38,085 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 34) no Hoare annotation was computed. [2022-12-14 13:04:38,085 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 26 35) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~z~0#1| 1073741823)) (.cse2 (<= 0 (+ 1073741823 |ULTIMATE.start_main_~z~0#1|))) (.cse1 (<= |ULTIMATE.start_main_~x~0#1| 1073741823)) (.cse3 (<= 0 (+ 1073741823 |ULTIMATE.start_main_~x~0#1|))) (.cse4 (<= |ULTIMATE.start_main_~y~0#1| 1073741823)) (.cse5 (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648))) (.cse7 (<= 0 (+ 1073741823 |ULTIMATE.start_main_~tx~0#1|))) (.cse6 (<= |ULTIMATE.start_main_~tx~0#1| 1073741823))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (let ((.cse8 (+ 1073741824 |ULTIMATE.start_main_~z~0#1|))) (and (<= |ULTIMATE.start_main_~tx~0#1| .cse8) (or (and .cse0 .cse1 .cse2 .cse3 .cse5 (<= |ULTIMATE.start_main_~y~0#1| 1073741824) .cse7) (and .cse1 .cse3 (<= |ULTIMATE.start_main_~z~0#1| 1073741822) .cse4 .cse5 .cse7 (<= 0 .cse8))) .cse6)))) [2022-12-14 13:04:38,085 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-12-14 13:04:38,085 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 15 37) the Hoare annotation is: true [2022-12-14 13:04:38,085 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-12-14 13:04:38,085 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-12-14 13:04:38,085 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point L26-2(line 26) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point L26-3(line 26) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point L26-5(lines 26 35) no Hoare annotation was computed. [2022-12-14 13:04:38,086 INFO L899 garLoopResultBuilder]: For program point L26-7(lines 26 35) no Hoare annotation was computed. [2022-12-14 13:04:38,088 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:04:38,090 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:04:38,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:04:38 BoogieIcfgContainer [2022-12-14 13:04:38,100 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:04:38,100 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:04:38,100 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:04:38,100 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:04:38,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:04:29" (3/4) ... [2022-12-14 13:04:38,102 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 13:04:38,108 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 13:04:38,109 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 13:04:38,109 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 13:04:38,132 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 13:04:38,132 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:04:38,132 INFO L158 Benchmark]: Toolchain (without parser) took 9164.71ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 92.9MB in the beginning and 124.9MB in the end (delta: -32.1MB). Peak memory consumption was 86.5MB. Max. memory is 16.1GB. [2022-12-14 13:04:38,133 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory is still 70.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:04:38,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 162.28ms. Allocated memory is still 127.9MB. Free memory was 92.9MB in the beginning and 83.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 13:04:38,133 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.48ms. Allocated memory is still 127.9MB. Free memory was 83.5MB in the beginning and 82.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:04:38,133 INFO L158 Benchmark]: Boogie Preprocessor took 13.81ms. Allocated memory is still 127.9MB. Free memory was 82.0MB in the beginning and 80.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:04:38,133 INFO L158 Benchmark]: RCFGBuilder took 219.91ms. Allocated memory is still 127.9MB. Free memory was 80.9MB in the beginning and 69.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 13:04:38,133 INFO L158 Benchmark]: TraceAbstraction took 8710.29ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 68.9MB in the beginning and 38.0MB in the end (delta: 31.0MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2022-12-14 13:04:38,134 INFO L158 Benchmark]: Witness Printer took 32.17ms. Allocated memory is still 155.2MB. Free memory was 38.0MB in the beginning and 124.9MB in the end (delta: -87.0MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2022-12-14 13:04:38,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory is still 70.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 162.28ms. Allocated memory is still 127.9MB. Free memory was 92.9MB in the beginning and 83.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.48ms. Allocated memory is still 127.9MB. Free memory was 83.5MB in the beginning and 82.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.81ms. Allocated memory is still 127.9MB. Free memory was 82.0MB in the beginning and 80.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 219.91ms. Allocated memory is still 127.9MB. Free memory was 80.9MB in the beginning and 69.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8710.29ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 68.9MB in the beginning and 38.0MB in the end (delta: 31.0MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. * Witness Printer took 32.17ms. Allocated memory is still 155.2MB. Free memory was 38.0MB in the beginning and 124.9MB in the end (delta: -87.0MB). Peak memory consumption was 2.2MB. 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: 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, 25 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 8.7s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 399 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 399 mSDsluCounter, 498 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 319 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 930 IncrementalHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 179 mSDtfsCounter, 930 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 473 GetRequests, 296 SyntacticMatches, 10 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1510 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=10, InterpolantAutomatonStates: 106, 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, 12 MinimizatonAttempts, 146 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 16 NumberOfFragments, 105 HoareAnnotationTreeSize, 2 FomulaSimplifications, 185 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 2 FomulaSimplificationsInter, 4607 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 341 NumberOfCodeBlocks, 333 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 451 ConstructedInterpolants, 0 QuantifiedInterpolants, 2324 SizeOfPredicates, 8 NumberOfNonLiveVariables, 278 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 22 InterpolantComputations, 7 PerfectInterpolantSequences, 50/282 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: 0.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 50, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 103, TOOLS_POST_TIME: 0.3s, 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: 103, TOOLS_QUANTIFIERELIM_TIME: 0.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 165, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 14, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 5, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 50, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 0.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 5, 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: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 649, DAG_COMPRESSION_RETAINED_NODES: 146, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (((((((z <= 1073741823 && x <= 1073741823) && 0 <= 1073741823 + z) && 0 <= 1073741823 + x) && y <= 1073741823) && 0 <= y + 2147483648) && tx <= 1073741823) && 0 <= 1073741823 + tx) || ((tx <= 1073741824 + z && (((((((z <= 1073741823 && x <= 1073741823) && 0 <= 1073741823 + z) && 0 <= 1073741823 + x) && 0 <= y + 2147483648) && y <= 1073741824) && 0 <= 1073741823 + tx) || ((((((x <= 1073741823 && 0 <= 1073741823 + x) && z <= 1073741822) && y <= 1073741823) && 0 <= y + 2147483648) && 0 <= 1073741823 + tx) && 0 <= 1073741824 + z))) && tx <= 1073741823) RESULT: Ultimate proved your program to be correct! [2022-12-14 13:04:38,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4d13442-5336-42a6-8ade-b1fa444149b8/bin/utaipan-gh47qXpMRh/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