./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_11_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_11_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 93bebbdc3ee9cd81b94f94132366dd7fabe0e91bdb03bdb4a54f809725af6783 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:15:56,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:15:56,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:15:56,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:15:56,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:15:56,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:15:56,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:15:56,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:15:56,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:15:56,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:15:56,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:15:56,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:15:56,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:15:56,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:15:56,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:15:56,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:15:56,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:15:56,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:15:56,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:15:56,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:15:56,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:15:56,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:15:56,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:15:56,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:15:56,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:15:56,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:15:56,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:15:56,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:15:56,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:15:56,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:15:56,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:15:56,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:15:56,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:15:56,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:15:56,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:15:56,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:15:56,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:15:56,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:15:56,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:15:56,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:15:56,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:15:56,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 01:15:56,151 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:15:56,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:15:56,152 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:15:56,152 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:15:56,153 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:15:56,153 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:15:56,154 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:15:56,154 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:15:56,154 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:15:56,154 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:15:56,155 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:15:56,155 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:15:56,161 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:15:56,161 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:15:56,161 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:15:56,162 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:15:56,162 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:15:56,162 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:15:56,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:15:56,163 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:15:56,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:15:56,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:15:56,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:15:56,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:15:56,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:15:56,165 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:15:56,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:15:56,166 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:15:56,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:15:56,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:15:56,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:15:56,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:15:56,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:15:56,169 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:15:56,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:15:56,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:15:56,171 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:15:56,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:15:56,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:15:56,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:15:56,172 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_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93bebbdc3ee9cd81b94f94132366dd7fabe0e91bdb03bdb4a54f809725af6783 [2022-11-22 01:15:56,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:15:56,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:15:56,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:15:56,587 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:15:56,592 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:15:56,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_11_good.i [2022-11-22 01:15:59,958 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:16:00,499 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:16:00,500 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_11_good.i [2022-11-22 01:16:00,525 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/data/1c2e47c6e/171e6a9cf6dd449295cf9505ec0f6386/FLAGc67aebf0d [2022-11-22 01:16:00,544 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/data/1c2e47c6e/171e6a9cf6dd449295cf9505ec0f6386 [2022-11-22 01:16:00,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:16:00,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:16:00,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:16:00,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:16:00,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:16:00,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:16:00" (1/1) ... [2022-11-22 01:16:00,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a9f67ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:00, skipping insertion in model container [2022-11-22 01:16:00,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:16:00" (1/1) ... [2022-11-22 01:16:00,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:16:00,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:16:01,115 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:16:01,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:16:01,917 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:16:01,955 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:16:02,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:16:02,265 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:16:02,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:02 WrapperNode [2022-11-22 01:16:02,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:16:02,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:16:02,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:16:02,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:16:02,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:02" (1/1) ... [2022-11-22 01:16:02,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:02" (1/1) ... [2022-11-22 01:16:02,338 INFO L138 Inliner]: procedures = 504, calls = 93, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 151 [2022-11-22 01:16:02,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:16:02,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:16:02,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:16:02,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:16:02,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:02" (1/1) ... [2022-11-22 01:16:02,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:02" (1/1) ... [2022-11-22 01:16:02,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:02" (1/1) ... [2022-11-22 01:16:02,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:02" (1/1) ... [2022-11-22 01:16:02,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:02" (1/1) ... [2022-11-22 01:16:02,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:02" (1/1) ... [2022-11-22 01:16:02,374 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:02" (1/1) ... [2022-11-22 01:16:02,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:02" (1/1) ... [2022-11-22 01:16:02,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:16:02,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:16:02,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:16:02,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:16:02,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:02" (1/1) ... [2022-11-22 01:16:02,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:16:02,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:16:02,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:16:02,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:16:02,509 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-22 01:16:02,510 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-22 01:16:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-22 01:16:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-22 01:16:02,510 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-22 01:16:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-11-22 01:16:02,511 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-11-22 01:16:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:16:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:16:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:16:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:16:02,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:16:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:16:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsFalse [2022-11-22 01:16:02,512 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsFalse [2022-11-22 01:16:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-22 01:16:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:16:02,720 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:16:02,723 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:16:03,208 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:16:03,286 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:16:03,286 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:16:03,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:16:03 BoogieIcfgContainer [2022-11-22 01:16:03,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:16:03,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:16:03,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:16:03,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:16:03,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:16:00" (1/3) ... [2022-11-22 01:16:03,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45806fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:16:03, skipping insertion in model container [2022-11-22 01:16:03,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:02" (2/3) ... [2022-11-22 01:16:03,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45806fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:16:03, skipping insertion in model container [2022-11-22 01:16:03,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:16:03" (3/3) ... [2022-11-22 01:16:03,301 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_11_good.i [2022-11-22 01:16:03,326 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:16:03,326 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-22 01:16:03,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:16:03,397 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;@298bf556, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:16:03,397 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-22 01:16:03,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 40 states have (on average 1.475) internal successors, (59), 57 states have internal predecessors, (59), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 17 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-22 01:16:03,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 01:16:03,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:03,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:03,415 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:16:03,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:03,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1518909130, now seen corresponding path program 1 times [2022-11-22 01:16:03,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:03,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069564360] [2022-11-22 01:16:03,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:03,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:03,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:16:03,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:03,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069564360] [2022-11-22 01:16:03,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069564360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:03,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:03,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:16:03,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527407340] [2022-11-22 01:16:03,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:03,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:16:03,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:04,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:16:04,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:16:04,020 INFO L87 Difference]: Start difference. First operand has 73 states, 40 states have (on average 1.475) internal successors, (59), 57 states have internal predecessors, (59), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 17 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 01:16:04,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:04,209 INFO L93 Difference]: Finished difference Result 137 states and 184 transitions. [2022-11-22 01:16:04,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:16:04,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2022-11-22 01:16:04,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:04,226 INFO L225 Difference]: With dead ends: 137 [2022-11-22 01:16:04,226 INFO L226 Difference]: Without dead ends: 68 [2022-11-22 01:16:04,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:16:04,238 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:04,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 256 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:16:04,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-22 01:16:04,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-22 01:16:04,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 53 states have internal predecessors, (54), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-22 01:16:04,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 90 transitions. [2022-11-22 01:16:04,301 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 90 transitions. Word has length 17 [2022-11-22 01:16:04,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:04,303 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 90 transitions. [2022-11-22 01:16:04,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 01:16:04,303 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 90 transitions. [2022-11-22 01:16:04,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:16:04,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:04,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:04,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:16:04,306 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:16:04,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:04,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1228629103, now seen corresponding path program 1 times [2022-11-22 01:16:04,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:04,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488538555] [2022-11-22 01:16:04,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:04,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:04,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:16:04,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:04,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488538555] [2022-11-22 01:16:04,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488538555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:04,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:04,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:16:04,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021980586] [2022-11-22 01:16:04,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:04,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:16:04,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:04,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:16:04,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:16:04,492 INFO L87 Difference]: Start difference. First operand 68 states and 90 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 01:16:04,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:04,596 INFO L93 Difference]: Finished difference Result 68 states and 90 transitions. [2022-11-22 01:16:04,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:16:04,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2022-11-22 01:16:04,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:04,605 INFO L225 Difference]: With dead ends: 68 [2022-11-22 01:16:04,607 INFO L226 Difference]: Without dead ends: 67 [2022-11-22 01:16:04,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:16:04,612 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 44 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:04,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 174 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:16:04,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-22 01:16:04,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-22 01:16:04,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 38 states have (on average 1.394736842105263) internal successors, (53), 52 states have internal predecessors, (53), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-22 01:16:04,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 89 transitions. [2022-11-22 01:16:04,637 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 89 transitions. Word has length 19 [2022-11-22 01:16:04,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:04,639 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 89 transitions. [2022-11-22 01:16:04,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-22 01:16:04,640 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 89 transitions. [2022-11-22 01:16:04,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 01:16:04,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:04,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:04,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:16:04,643 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:16:04,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:04,644 INFO L85 PathProgramCache]: Analyzing trace with hash -567203394, now seen corresponding path program 1 times [2022-11-22 01:16:04,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:04,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350166269] [2022-11-22 01:16:04,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:04,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:04,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:16:04,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:04,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350166269] [2022-11-22 01:16:04,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350166269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:04,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:04,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:16:04,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295844054] [2022-11-22 01:16:04,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:04,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:16:04,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:04,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:16:04,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:16:04,778 INFO L87 Difference]: Start difference. First operand 67 states and 89 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:16:04,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:04,806 INFO L93 Difference]: Finished difference Result 67 states and 89 transitions. [2022-11-22 01:16:04,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:16:04,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2022-11-22 01:16:04,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:04,808 INFO L225 Difference]: With dead ends: 67 [2022-11-22 01:16:04,809 INFO L226 Difference]: Without dead ends: 66 [2022-11-22 01:16:04,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:16:04,811 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:04,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:16:04,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-22 01:16:04,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-11-22 01:16:04,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 38 states have (on average 1.368421052631579) internal successors, (52), 51 states have internal predecessors, (52), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-22 01:16:04,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 88 transitions. [2022-11-22 01:16:04,822 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 88 transitions. Word has length 20 [2022-11-22 01:16:04,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:04,823 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 88 transitions. [2022-11-22 01:16:04,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:16:04,823 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 88 transitions. [2022-11-22 01:16:04,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-22 01:16:04,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:04,825 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:04,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:16:04,825 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:16:04,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:04,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1147666448, now seen corresponding path program 1 times [2022-11-22 01:16:04,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:04,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510349100] [2022-11-22 01:16:04,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:04,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:05,003 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:16:05,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:05,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510349100] [2022-11-22 01:16:05,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510349100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:05,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:05,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:16:05,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332331916] [2022-11-22 01:16:05,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:05,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:16:05,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:05,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:16:05,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:16:05,006 INFO L87 Difference]: Start difference. First operand 66 states and 88 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:16:05,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:05,090 INFO L93 Difference]: Finished difference Result 114 states and 148 transitions. [2022-11-22 01:16:05,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:16:05,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 33 [2022-11-22 01:16:05,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:05,092 INFO L225 Difference]: With dead ends: 114 [2022-11-22 01:16:05,093 INFO L226 Difference]: Without dead ends: 65 [2022-11-22 01:16:05,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:16:05,095 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:05,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:16:05,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-22 01:16:05,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-22 01:16:05,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 38 states have (on average 1.3421052631578947) internal successors, (51), 50 states have internal predecessors, (51), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-22 01:16:05,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 85 transitions. [2022-11-22 01:16:05,112 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 85 transitions. Word has length 33 [2022-11-22 01:16:05,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:05,113 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 85 transitions. [2022-11-22 01:16:05,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:16:05,113 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 85 transitions. [2022-11-22 01:16:05,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-22 01:16:05,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:05,114 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:05,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:16:05,120 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:16:05,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:05,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1355647169, now seen corresponding path program 1 times [2022-11-22 01:16:05,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:05,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712330286] [2022-11-22 01:16:05,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:05,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:05,296 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:16:05,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:05,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712330286] [2022-11-22 01:16:05,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712330286] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:16:05,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068776093] [2022-11-22 01:16:05,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:05,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:16:05,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:16:05,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:16:05,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:16:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:05,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:16:05,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:16:05,517 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:16:05,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:16:05,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068776093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:05,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:16:05,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-22 01:16:05,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153072639] [2022-11-22 01:16:05,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:05,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:16:05,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:05,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:16:05,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:16:05,535 INFO L87 Difference]: Start difference. First operand 65 states and 85 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:16:05,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:05,617 INFO L93 Difference]: Finished difference Result 106 states and 134 transitions. [2022-11-22 01:16:05,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:16:05,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2022-11-22 01:16:05,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:05,619 INFO L225 Difference]: With dead ends: 106 [2022-11-22 01:16:05,620 INFO L226 Difference]: Without dead ends: 65 [2022-11-22 01:16:05,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:16:05,621 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:05,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:16:05,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-22 01:16:05,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-22 01:16:05,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 50 states have internal predecessors, (50), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-22 01:16:05,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2022-11-22 01:16:05,644 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 34 [2022-11-22 01:16:05,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:05,644 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2022-11-22 01:16:05,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:16:05,645 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2022-11-22 01:16:05,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-22 01:16:05,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:05,646 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:05,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:16:05,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:16:05,854 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:16:05,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:05,854 INFO L85 PathProgramCache]: Analyzing trace with hash -28075386, now seen corresponding path program 1 times [2022-11-22 01:16:05,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:05,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190019560] [2022-11-22 01:16:05,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:05,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:05,980 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:16:05,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:05,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190019560] [2022-11-22 01:16:05,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190019560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:05,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:05,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:16:05,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027767704] [2022-11-22 01:16:05,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:05,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:16:05,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:05,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:16:05,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:16:05,983 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:16:06,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:06,050 INFO L93 Difference]: Finished difference Result 65 states and 84 transitions. [2022-11-22 01:16:06,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:16:06,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 36 [2022-11-22 01:16:06,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:06,052 INFO L225 Difference]: With dead ends: 65 [2022-11-22 01:16:06,052 INFO L226 Difference]: Without dead ends: 64 [2022-11-22 01:16:06,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:16:06,054 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 28 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:06,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 178 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:16:06,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-22 01:16:06,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-22 01:16:06,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 49 states have internal predecessors, (49), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-22 01:16:06,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2022-11-22 01:16:06,065 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 36 [2022-11-22 01:16:06,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:06,066 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2022-11-22 01:16:06,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:16:06,066 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2022-11-22 01:16:06,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-22 01:16:06,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:06,068 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:06,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:16:06,068 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:16:06,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:06,069 INFO L85 PathProgramCache]: Analyzing trace with hash -870336855, now seen corresponding path program 1 times [2022-11-22 01:16:06,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:06,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14870250] [2022-11-22 01:16:06,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:06,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:06,194 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:16:06,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:06,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14870250] [2022-11-22 01:16:06,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14870250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:06,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:06,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:16:06,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242509337] [2022-11-22 01:16:06,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:06,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:16:06,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:06,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:16:06,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:16:06,197 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-22 01:16:06,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:06,225 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2022-11-22 01:16:06,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:16:06,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 37 [2022-11-22 01:16:06,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:06,227 INFO L225 Difference]: With dead ends: 64 [2022-11-22 01:16:06,227 INFO L226 Difference]: Without dead ends: 63 [2022-11-22 01:16:06,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:16:06,229 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:06,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:16:06,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-22 01:16:06,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-22 01:16:06,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 38 states have (on average 1.263157894736842) internal successors, (48), 48 states have internal predecessors, (48), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-22 01:16:06,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 82 transitions. [2022-11-22 01:16:06,239 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 82 transitions. Word has length 37 [2022-11-22 01:16:06,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:06,239 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 82 transitions. [2022-11-22 01:16:06,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-22 01:16:06,240 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2022-11-22 01:16:06,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-22 01:16:06,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:06,245 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:06,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:16:06,245 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:16:06,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:06,247 INFO L85 PathProgramCache]: Analyzing trace with hash -586911336, now seen corresponding path program 1 times [2022-11-22 01:16:06,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:06,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111991160] [2022-11-22 01:16:06,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:06,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:06,358 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 01:16:06,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:06,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111991160] [2022-11-22 01:16:06,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111991160] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:16:06,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651844535] [2022-11-22 01:16:06,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:06,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:16:06,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:16:06,364 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:16:06,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:16:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:06,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:16:06,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:16:06,529 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:16:06,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:16:06,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651844535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:06,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:16:06,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-22 01:16:06,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115313797] [2022-11-22 01:16:06,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:06,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:16:06,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:06,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:16:06,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:16:06,531 INFO L87 Difference]: Start difference. First operand 63 states and 82 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 01:16:06,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:06,569 INFO L93 Difference]: Finished difference Result 94 states and 116 transitions. [2022-11-22 01:16:06,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:16:06,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 46 [2022-11-22 01:16:06,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:06,571 INFO L225 Difference]: With dead ends: 94 [2022-11-22 01:16:06,571 INFO L226 Difference]: Without dead ends: 63 [2022-11-22 01:16:06,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:16:06,572 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:06,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 211 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:16:06,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-22 01:16:06,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-22 01:16:06,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 38 states have (on average 1.236842105263158) internal successors, (47), 47 states have internal predecessors, (47), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-22 01:16:06,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 81 transitions. [2022-11-22 01:16:06,587 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 81 transitions. Word has length 46 [2022-11-22 01:16:06,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:06,588 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 81 transitions. [2022-11-22 01:16:06,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 01:16:06,589 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 81 transitions. [2022-11-22 01:16:06,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-22 01:16:06,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:06,595 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:06,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:16:06,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:16:06,801 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:16:06,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:06,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1577974785, now seen corresponding path program 1 times [2022-11-22 01:16:06,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:06,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584323747] [2022-11-22 01:16:06,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:06,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:06,927 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 01:16:06,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:06,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584323747] [2022-11-22 01:16:06,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584323747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:06,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:06,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:16:06,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651817149] [2022-11-22 01:16:06,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:06,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:16:06,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:06,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:16:06,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:16:06,930 INFO L87 Difference]: Start difference. First operand 63 states and 81 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:16:06,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:06,974 INFO L93 Difference]: Finished difference Result 81 states and 103 transitions. [2022-11-22 01:16:06,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:16:06,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 50 [2022-11-22 01:16:06,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:06,976 INFO L225 Difference]: With dead ends: 81 [2022-11-22 01:16:06,976 INFO L226 Difference]: Without dead ends: 80 [2022-11-22 01:16:06,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:16:06,977 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 13 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:06,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 219 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:16:06,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-22 01:16:06,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 67. [2022-11-22 01:16:06,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 49 states have internal predecessors, (51), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-22 01:16:06,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2022-11-22 01:16:06,986 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 50 [2022-11-22 01:16:06,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:06,988 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2022-11-22 01:16:06,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:16:06,988 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2022-11-22 01:16:06,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-22 01:16:06,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:06,993 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:06,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:16:06,994 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:16:06,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:06,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1672578217, now seen corresponding path program 1 times [2022-11-22 01:16:06,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:06,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557399235] [2022-11-22 01:16:06,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:06,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:07,110 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 01:16:07,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:07,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557399235] [2022-11-22 01:16:07,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557399235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:07,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:07,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:16:07,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210610016] [2022-11-22 01:16:07,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:07,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:16:07,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:07,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:16:07,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:16:07,114 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:16:07,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:07,165 INFO L93 Difference]: Finished difference Result 77 states and 98 transitions. [2022-11-22 01:16:07,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:16:07,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 51 [2022-11-22 01:16:07,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:07,167 INFO L225 Difference]: With dead ends: 77 [2022-11-22 01:16:07,168 INFO L226 Difference]: Without dead ends: 76 [2022-11-22 01:16:07,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:16:07,170 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 14 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:07,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 204 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:16:07,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-22 01:16:07,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 66. [2022-11-22 01:16:07,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 48 states have internal predecessors, (50), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-22 01:16:07,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 86 transitions. [2022-11-22 01:16:07,193 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 86 transitions. Word has length 51 [2022-11-22 01:16:07,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:07,195 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 86 transitions. [2022-11-22 01:16:07,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:16:07,196 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2022-11-22 01:16:07,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-22 01:16:07,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:07,198 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:07,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:16:07,198 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:16:07,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:07,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1001422755, now seen corresponding path program 1 times [2022-11-22 01:16:07,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:07,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345481693] [2022-11-22 01:16:07,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:07,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:07,301 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-22 01:16:07,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:07,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345481693] [2022-11-22 01:16:07,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345481693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:07,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:07,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:16:07,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238534967] [2022-11-22 01:16:07,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:07,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:16:07,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:07,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:16:07,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:16:07,305 INFO L87 Difference]: Start difference. First operand 66 states and 86 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-22 01:16:07,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:07,339 INFO L93 Difference]: Finished difference Result 84 states and 103 transitions. [2022-11-22 01:16:07,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:16:07,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2022-11-22 01:16:07,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:07,341 INFO L225 Difference]: With dead ends: 84 [2022-11-22 01:16:07,342 INFO L226 Difference]: Without dead ends: 60 [2022-11-22 01:16:07,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:16:07,343 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:07,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 200 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:16:07,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-22 01:16:07,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-22 01:16:07,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 44 states have internal predecessors, (44), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-22 01:16:07,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 76 transitions. [2022-11-22 01:16:07,351 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 76 transitions. Word has length 53 [2022-11-22 01:16:07,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:07,352 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 76 transitions. [2022-11-22 01:16:07,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-22 01:16:07,352 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 76 transitions. [2022-11-22 01:16:07,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-22 01:16:07,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:07,353 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:07,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:16:07,354 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:16:07,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:07,355 INFO L85 PathProgramCache]: Analyzing trace with hash -402769081, now seen corresponding path program 1 times [2022-11-22 01:16:07,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:07,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126165719] [2022-11-22 01:16:07,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:07,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:07,443 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-22 01:16:07,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:07,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126165719] [2022-11-22 01:16:07,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126165719] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:16:07,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335375200] [2022-11-22 01:16:07,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:07,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:16:07,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:16:07,446 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:16:07,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:16:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:07,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:16:07,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:16:07,612 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-22 01:16:07,612 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:16:07,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335375200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:07,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:16:07,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-22 01:16:07,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003983422] [2022-11-22 01:16:07,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:07,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:16:07,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:07,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:16:07,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:16:07,614 INFO L87 Difference]: Start difference. First operand 60 states and 76 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 01:16:07,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:07,654 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2022-11-22 01:16:07,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:16:07,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 60 [2022-11-22 01:16:07,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:07,656 INFO L225 Difference]: With dead ends: 72 [2022-11-22 01:16:07,656 INFO L226 Difference]: Without dead ends: 60 [2022-11-22 01:16:07,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:16:07,657 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:07,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 193 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:16:07,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-22 01:16:07,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-22 01:16:07,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.131578947368421) internal successors, (43), 43 states have internal predecessors, (43), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-22 01:16:07,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 75 transitions. [2022-11-22 01:16:07,664 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 75 transitions. Word has length 60 [2022-11-22 01:16:07,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:07,664 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 75 transitions. [2022-11-22 01:16:07,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 01:16:07,665 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 75 transitions. [2022-11-22 01:16:07,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-22 01:16:07,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:07,666 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:07,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:16:07,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:16:07,872 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:16:07,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:07,873 INFO L85 PathProgramCache]: Analyzing trace with hash -2119652869, now seen corresponding path program 1 times [2022-11-22 01:16:07,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:07,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819831382] [2022-11-22 01:16:07,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:07,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:08,041 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-22 01:16:08,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:08,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819831382] [2022-11-22 01:16:08,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819831382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:08,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:08,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:16:08,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723933402] [2022-11-22 01:16:08,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:08,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:16:08,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:08,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:16:08,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:16:08,044 INFO L87 Difference]: Start difference. First operand 60 states and 75 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-22 01:16:08,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:08,083 INFO L93 Difference]: Finished difference Result 60 states and 75 transitions. [2022-11-22 01:16:08,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:16:08,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 65 [2022-11-22 01:16:08,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:08,085 INFO L225 Difference]: With dead ends: 60 [2022-11-22 01:16:08,085 INFO L226 Difference]: Without dead ends: 59 [2022-11-22 01:16:08,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:16:08,086 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 5 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:08,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 252 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:16:08,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-22 01:16:08,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-22 01:16:08,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.105263157894737) internal successors, (42), 42 states have internal predecessors, (42), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-22 01:16:08,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2022-11-22 01:16:08,093 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 65 [2022-11-22 01:16:08,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:08,094 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2022-11-22 01:16:08,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-22 01:16:08,094 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2022-11-22 01:16:08,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-22 01:16:08,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:08,095 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:08,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 01:16:08,096 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:16:08,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:08,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1284729339, now seen corresponding path program 1 times [2022-11-22 01:16:08,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:08,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117883016] [2022-11-22 01:16:08,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:08,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:08,228 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-22 01:16:08,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:08,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117883016] [2022-11-22 01:16:08,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117883016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:08,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:08,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:16:08,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978958650] [2022-11-22 01:16:08,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:08,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:16:08,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:08,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:16:08,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:16:08,231 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-22 01:16:08,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:08,270 INFO L93 Difference]: Finished difference Result 59 states and 74 transitions. [2022-11-22 01:16:08,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:16:08,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 66 [2022-11-22 01:16:08,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:08,272 INFO L225 Difference]: With dead ends: 59 [2022-11-22 01:16:08,272 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:16:08,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:16:08,273 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 2 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:08,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 252 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:16:08,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:16:08,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:16:08,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:16:08,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:16:08,275 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2022-11-22 01:16:08,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:08,275 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:16:08,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-22 01:16:08,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:16:08,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:16:08,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-22 01:16:08,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-22 01:16:08,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-22 01:16:08,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-22 01:16:08,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-22 01:16:08,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-22 01:16:08,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-22 01:16:08,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-22 01:16:08,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 01:16:08,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:16:08,473 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-22 01:16:08,473 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-22 01:16:08,473 INFO L902 garLoopResultBuilder]: At program point globalReturnsFalseENTRY(lines 1514 1517) the Hoare annotation is: true [2022-11-22 01:16:08,473 INFO L899 garLoopResultBuilder]: For program point globalReturnsFalseEXIT(lines 1514 1517) no Hoare annotation was computed. [2022-11-22 01:16:08,474 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-22 01:16:08,474 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-22 01:16:08,474 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1606) no Hoare annotation was computed. [2022-11-22 01:16:08,474 INFO L895 garLoopResultBuilder]: At program point L1588(line 1588) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-22 01:16:08,475 INFO L899 garLoopResultBuilder]: For program point L1588-1(line 1588) no Hoare annotation was computed. [2022-11-22 01:16:08,475 INFO L899 garLoopResultBuilder]: For program point L1588-2(lines 1588 1601) no Hoare annotation was computed. [2022-11-22 01:16:08,475 INFO L895 garLoopResultBuilder]: At program point L1588-4(lines 1588 1601) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-22 01:16:08,475 INFO L895 garLoopResultBuilder]: At program point L1580(line 1580) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) [2022-11-22 01:16:08,475 INFO L899 garLoopResultBuilder]: For program point L1580-1(lines 1566 1582) no Hoare annotation was computed. [2022-11-22 01:16:08,476 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1648) no Hoare annotation was computed. [2022-11-22 01:16:08,476 INFO L899 garLoopResultBuilder]: For program point L1572(lines 1572 1581) no Hoare annotation was computed. [2022-11-22 01:16:08,476 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1574) no Hoare annotation was computed. [2022-11-22 01:16:08,476 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:16:08,476 INFO L895 garLoopResultBuilder]: At program point L1622(line 1622) the Hoare annotation is: false [2022-11-22 01:16:08,476 INFO L899 garLoopResultBuilder]: For program point L1556(lines 1556 1563) no Hoare annotation was computed. [2022-11-22 01:16:08,477 INFO L899 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2022-11-22 01:16:08,477 INFO L899 garLoopResultBuilder]: For program point L1606-1(line 1606) no Hoare annotation was computed. [2022-11-22 01:16:08,477 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1574) no Hoare annotation was computed. [2022-11-22 01:16:08,477 INFO L902 garLoopResultBuilder]: At program point L1664(line 1664) the Hoare annotation is: true [2022-11-22 01:16:08,477 INFO L899 garLoopResultBuilder]: For program point L1664-1(line 1664) no Hoare annotation was computed. [2022-11-22 01:16:08,478 INFO L899 garLoopResultBuilder]: For program point L1631(line 1631) no Hoare annotation was computed. [2022-11-22 01:16:08,478 INFO L895 garLoopResultBuilder]: At program point L1598(line 1598) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-22 01:16:08,478 INFO L899 garLoopResultBuilder]: For program point L1631-1(line 1631) no Hoare annotation was computed. [2022-11-22 01:16:08,478 INFO L899 garLoopResultBuilder]: For program point L1598-1(lines 1592 1599) no Hoare annotation was computed. [2022-11-22 01:16:08,478 INFO L899 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2022-11-22 01:16:08,478 INFO L899 garLoopResultBuilder]: For program point L1648-1(line 1648) no Hoare annotation was computed. [2022-11-22 01:16:08,479 INFO L899 garLoopResultBuilder]: For program point L1574(line 1574) no Hoare annotation was computed. [2022-11-22 01:16:08,479 INFO L899 garLoopResultBuilder]: For program point L1574-1(line 1574) no Hoare annotation was computed. [2022-11-22 01:16:08,479 INFO L899 garLoopResultBuilder]: For program point L1566(line 1566) no Hoare annotation was computed. [2022-11-22 01:16:08,479 INFO L899 garLoopResultBuilder]: For program point L1566-1(lines 1566 1582) no Hoare annotation was computed. [2022-11-22 01:16:08,479 INFO L899 garLoopResultBuilder]: For program point L1616(lines 1616 1636) no Hoare annotation was computed. [2022-11-22 01:16:08,479 INFO L895 garLoopResultBuilder]: At program point L1641(line 1641) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (= |ULTIMATE.start_goodG2B2_~data~3#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-22 01:16:08,480 INFO L895 garLoopResultBuilder]: At program point L1608(line 1608) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-22 01:16:08,480 INFO L899 garLoopResultBuilder]: For program point L1641-1(line 1641) no Hoare annotation was computed. [2022-11-22 01:16:08,480 INFO L895 garLoopResultBuilder]: At program point L1641-4(lines 1641 1644) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_goodG2B2_~data~3#1| 2))) (and (or (= |ULTIMATE.start_goodG2B2_~data~3#1| 0) (<= .cse0 0)) (<= 0 .cse0) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647))) [2022-11-22 01:16:08,480 INFO L902 garLoopResultBuilder]: At program point L1666(line 1666) the Hoare annotation is: true [2022-11-22 01:16:08,481 INFO L895 garLoopResultBuilder]: At program point L1633(line 1633) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-22 01:16:08,481 INFO L902 garLoopResultBuilder]: At program point L1666-1(line 1666) the Hoare annotation is: true [2022-11-22 01:16:08,481 INFO L899 garLoopResultBuilder]: For program point L1592(lines 1592 1599) no Hoare annotation was computed. [2022-11-22 01:16:08,481 INFO L902 garLoopResultBuilder]: At program point L1650(line 1650) the Hoare annotation is: true [2022-11-22 01:16:08,481 INFO L899 garLoopResultBuilder]: For program point L1584(lines 1584 1615) no Hoare annotation was computed. [2022-11-22 01:16:08,481 INFO L895 garLoopResultBuilder]: At program point L1576(line 1576) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) [2022-11-22 01:16:08,482 INFO L895 garLoopResultBuilder]: At program point L1568(line 1568) the Hoare annotation is: false [2022-11-22 01:16:08,482 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1631) no Hoare annotation was computed. [2022-11-22 01:16:08,482 INFO L895 garLoopResultBuilder]: At program point L1552(line 1552) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) [2022-11-22 01:16:08,482 INFO L899 garLoopResultBuilder]: For program point L1552-1(line 1552) no Hoare annotation was computed. [2022-11-22 01:16:08,482 INFO L899 garLoopResultBuilder]: For program point L1552-2(lines 1552 1565) no Hoare annotation was computed. [2022-11-22 01:16:08,482 INFO L895 garLoopResultBuilder]: At program point L1552-4(lines 1552 1565) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) [2022-11-22 01:16:08,483 INFO L899 garLoopResultBuilder]: For program point L1602(line 1602) no Hoare annotation was computed. [2022-11-22 01:16:08,483 INFO L899 garLoopResultBuilder]: For program point L1602-1(lines 1602 1614) no Hoare annotation was computed. [2022-11-22 01:16:08,483 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:16:08,483 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1631) no Hoare annotation was computed. [2022-11-22 01:16:08,483 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1606) no Hoare annotation was computed. [2022-11-22 01:16:08,483 INFO L899 garLoopResultBuilder]: For program point L1628(line 1628) no Hoare annotation was computed. [2022-11-22 01:16:08,484 INFO L899 garLoopResultBuilder]: For program point L1628-1(lines 1628 1635) no Hoare annotation was computed. [2022-11-22 01:16:08,484 INFO L895 garLoopResultBuilder]: At program point L1562(line 1562) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) [2022-11-22 01:16:08,484 INFO L899 garLoopResultBuilder]: For program point L1562-1(lines 1556 1563) no Hoare annotation was computed. [2022-11-22 01:16:08,484 INFO L895 garLoopResultBuilder]: At program point L1620(line 1620) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-11-22 01:16:08,484 INFO L899 garLoopResultBuilder]: For program point L1620-1(line 1620) no Hoare annotation was computed. [2022-11-22 01:16:08,485 INFO L899 garLoopResultBuilder]: For program point L1620-2(lines 1620 1627) no Hoare annotation was computed. [2022-11-22 01:16:08,485 INFO L895 garLoopResultBuilder]: At program point L1620-3(lines 1620 1627) the Hoare annotation is: (let ((.cse0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) (and (<= .cse0 0) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 .cse0))) [2022-11-22 01:16:08,485 INFO L899 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2022-11-22 01:16:08,485 INFO L895 garLoopResultBuilder]: At program point L1612(line 1612) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-22 01:16:08,485 INFO L899 garLoopResultBuilder]: For program point L1645-1(lines 1645 1652) no Hoare annotation was computed. [2022-11-22 01:16:08,486 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1648) no Hoare annotation was computed. [2022-11-22 01:16:08,486 INFO L899 garLoopResultBuilder]: For program point L1637(lines 1637 1653) no Hoare annotation was computed. [2022-11-22 01:16:08,486 INFO L899 garLoopResultBuilder]: For program point L1604(lines 1604 1613) no Hoare annotation was computed. [2022-11-22 01:16:08,486 INFO L902 garLoopResultBuilder]: At program point globalReturnsTrueENTRY(lines 1510 1513) the Hoare annotation is: true [2022-11-22 01:16:08,486 INFO L899 garLoopResultBuilder]: For program point globalReturnsTrueEXIT(lines 1510 1513) no Hoare annotation was computed. [2022-11-22 01:16:08,490 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:08,493 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:16:08,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:16:08 BoogieIcfgContainer [2022-11-22 01:16:08,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:16:08,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:16:08,506 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:16:08,506 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:16:08,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:16:03" (3/4) ... [2022-11-22 01:16:08,520 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:16:08,527 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-22 01:16:08,527 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsFalse [2022-11-22 01:16:08,527 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-22 01:16:08,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrue [2022-11-22 01:16:08,536 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-22 01:16:08,536 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-22 01:16:08,536 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-22 01:16:08,537 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:16:08,537 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:16:08,609 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:16:08,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:16:08,610 INFO L158 Benchmark]: Toolchain (without parser) took 8060.72ms. Allocated memory was 182.5MB in the beginning and 226.5MB in the end (delta: 44.0MB). Free memory was 147.5MB in the beginning and 127.9MB in the end (delta: 19.6MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. [2022-11-22 01:16:08,610 INFO L158 Benchmark]: CDTParser took 3.00ms. Allocated memory is still 123.7MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:16:08,611 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1714.63ms. Allocated memory is still 182.5MB. Free memory was 147.1MB in the beginning and 145.5MB in the end (delta: 1.6MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2022-11-22 01:16:08,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.52ms. Allocated memory is still 182.5MB. Free memory was 145.5MB in the beginning and 142.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:16:08,612 INFO L158 Benchmark]: Boogie Preprocessor took 40.51ms. Allocated memory is still 182.5MB. Free memory was 142.9MB in the beginning and 140.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:16:08,612 INFO L158 Benchmark]: RCFGBuilder took 909.42ms. Allocated memory is still 182.5MB. Free memory was 140.8MB in the beginning and 120.5MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-22 01:16:08,613 INFO L158 Benchmark]: TraceAbstraction took 5212.69ms. Allocated memory was 182.5MB in the beginning and 226.5MB in the end (delta: 44.0MB). Free memory was 119.9MB in the beginning and 132.1MB in the end (delta: -12.3MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2022-11-22 01:16:08,613 INFO L158 Benchmark]: Witness Printer took 103.13ms. Allocated memory is still 226.5MB. Free memory was 132.1MB in the beginning and 127.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 01:16:08,617 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.00ms. Allocated memory is still 123.7MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1714.63ms. Allocated memory is still 182.5MB. Free memory was 147.1MB in the beginning and 145.5MB in the end (delta: 1.6MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.52ms. Allocated memory is still 182.5MB. Free memory was 145.5MB in the beginning and 142.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.51ms. Allocated memory is still 182.5MB. Free memory was 142.9MB in the beginning and 140.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 909.42ms. Allocated memory is still 182.5MB. Free memory was 140.8MB in the beginning and 120.5MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5212.69ms. Allocated memory was 182.5MB in the beginning and 226.5MB in the end (delta: 44.0MB). Free memory was 119.9MB in the beginning and 132.1MB in the end (delta: -12.3MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * Witness Printer took 103.13ms. Allocated memory is still 226.5MB. Free memory was 132.1MB in the beginning and 127.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1631]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1631]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1648]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1648]: 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 5 procedures, 73 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 14, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 2890 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1860 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 369 IncrementalHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 1030 mSDtfsCounter, 369 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 23 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 90 PreInvPairs, 106 NumberOfFragments, 127 HoareAnnotationTreeSize, 90 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 93 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 727 NumberOfCodeBlocks, 727 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 710 ConstructedInterpolants, 0 QuantifiedInterpolants, 894 SizeOfPredicates, 0 NumberOfNonLiveVariables, 741 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 286/290 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1666]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-22 01:16:08,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687f7745-01d7-4495-9295-33e0f4184036/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE