./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/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_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 38a2fba2a92db51b6a97ddc82d5dc9e2df7a8770315ef841bfaf5f0764404946 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:17:18,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:17:18,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:17:18,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:17:18,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:17:18,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:17:18,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:17:18,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:17:18,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:17:18,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:17:18,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:17:18,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:17:18,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:17:18,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:17:18,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:17:18,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:17:18,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:17:18,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:17:18,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:17:18,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:17:18,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:17:18,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:17:18,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:17:18,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:17:18,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:17:18,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:17:18,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:17:18,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:17:18,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:17:18,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:17:18,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:17:18,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:17:18,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:17:18,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:17:18,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:17:18,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:17:18,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:17:18,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:17:18,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:17:18,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:17:18,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:17:18,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:17:18,401 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:17:18,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:17:18,404 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:17:18,404 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:17:18,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:17:18,405 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:17:18,406 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:17:18,406 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:17:18,406 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:17:18,406 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:17:18,408 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:17:18,408 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:17:18,408 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:17:18,408 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:17:18,409 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:17:18,409 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:17:18,409 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:17:18,409 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:17:18,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:17:18,410 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:17:18,411 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:17:18,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:17:18,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:17:18,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:17:18,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:17:18,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:17:18,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:17:18,412 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:17:18,413 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:17:18,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:17:18,413 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:17:18,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:17:18,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:17:18,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:17:18,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:17:18,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:17:18,415 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:17:18,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:17:18,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:17:18,416 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:17:18,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:17:18,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:17:18,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:17:18,417 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_643decc5-db23-4891-a4fb-0501a2cbdcac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38a2fba2a92db51b6a97ddc82d5dc9e2df7a8770315ef841bfaf5f0764404946 [2022-11-22 02:17:18,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:17:18,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:17:18,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:17:18,699 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:17:18,700 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:17:18,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i [2022-11-22 02:17:21,812 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:17:22,155 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:17:22,156 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i [2022-11-22 02:17:22,169 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/data/642ad0ee8/678be7c4813e4f2f8cb46bcd0f63ab4e/FLAG8a05e5c3d [2022-11-22 02:17:22,194 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/data/642ad0ee8/678be7c4813e4f2f8cb46bcd0f63ab4e [2022-11-22 02:17:22,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:17:22,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:17:22,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:17:22,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:17:22,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:17:22,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:17:22" (1/1) ... [2022-11-22 02:17:22,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2caf6a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:22, skipping insertion in model container [2022-11-22 02:17:22,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:17:22" (1/1) ... [2022-11-22 02:17:22,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:17:22,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:17:22,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:17:22,691 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:17:22,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:17:22,836 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:17:22,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:22 WrapperNode [2022-11-22 02:17:22,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:17:22,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:17:22,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:17:22,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:17:22,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:22" (1/1) ... [2022-11-22 02:17:22,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:22" (1/1) ... [2022-11-22 02:17:22,882 INFO L138 Inliner]: procedures = 165, calls = 76, calls flagged for inlining = 22, calls inlined = 4, statements flattened = 72 [2022-11-22 02:17:22,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:17:22,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:17:22,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:17:22,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:17:22,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:22" (1/1) ... [2022-11-22 02:17:22,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:22" (1/1) ... [2022-11-22 02:17:22,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:22" (1/1) ... [2022-11-22 02:17:22,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:22" (1/1) ... [2022-11-22 02:17:22,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:22" (1/1) ... [2022-11-22 02:17:22,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:22" (1/1) ... [2022-11-22 02:17:22,910 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:22" (1/1) ... [2022-11-22 02:17:22,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:22" (1/1) ... [2022-11-22 02:17:22,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:17:22,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:17:22,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:17:22,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:17:22,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:22" (1/1) ... [2022-11-22 02:17:22,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:17:22,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:17:22,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:17:22,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:17:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:17:22,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:17:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:17:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:17:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:17:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:17:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:17:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:17:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:17:22,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:17:23,197 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:17:23,199 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:17:23,357 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:17:23,395 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:17:23,396 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-22 02:17:23,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:17:23 BoogieIcfgContainer [2022-11-22 02:17:23,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:17:23,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:17:23,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:17:23,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:17:23,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:17:22" (1/3) ... [2022-11-22 02:17:23,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ac9328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:17:23, skipping insertion in model container [2022-11-22 02:17:23,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:22" (2/3) ... [2022-11-22 02:17:23,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ac9328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:17:23, skipping insertion in model container [2022-11-22 02:17:23,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:17:23" (3/3) ... [2022-11-22 02:17:23,408 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test17_3.i [2022-11-22 02:17:23,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:17:23,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-22 02:17:23,472 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:17:23,479 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;@38424b7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:17:23,480 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-22 02:17:23,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 27 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:17:23,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:17:23,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:23,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:17:23,495 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 02:17:23,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:23,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1080968487, now seen corresponding path program 1 times [2022-11-22 02:17:23,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:23,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844488930] [2022-11-22 02:17:23,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:23,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:23,816 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 02:17:23,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:23,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844488930] [2022-11-22 02:17:23,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844488930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:17:23,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:17:23,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:17:23,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037040922] [2022-11-22 02:17:23,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:17:23,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:17:23,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:17:23,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:17:23,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:17:23,866 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 27 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:17:24,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:17:24,022 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2022-11-22 02:17:24,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:17:24,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-11-22 02:17:24,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:17:24,037 INFO L225 Difference]: With dead ends: 56 [2022-11-22 02:17:24,038 INFO L226 Difference]: Without dead ends: 48 [2022-11-22 02:17:24,042 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 02:17:24,049 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 25 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:17:24,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 103 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:17:24,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-22 02:17:24,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 31. [2022-11-22 02:17:24,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 20 states have (on average 1.55) internal successors, (31), 27 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:17:24,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2022-11-22 02:17:24,095 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 8 [2022-11-22 02:17:24,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:17:24,096 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-11-22 02:17:24,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:17:24,097 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-11-22 02:17:24,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:17:24,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:24,105 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:17:24,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:17:24,106 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 02:17:24,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:24,108 INFO L85 PathProgramCache]: Analyzing trace with hash -532530515, now seen corresponding path program 1 times [2022-11-22 02:17:24,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:24,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504996141] [2022-11-22 02:17:24,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:24,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:24,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:17:24,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:24,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504996141] [2022-11-22 02:17:24,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504996141] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:17:24,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082275428] [2022-11-22 02:17:24,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:24,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:17:24,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:17:24,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:17:24,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:17:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:24,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:17:24,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:17:24,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:17:24,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:17:24,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:17:24,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082275428] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:17:24,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1255919490] [2022-11-22 02:17:24,610 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 02:17:24,611 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:17:24,618 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:17:24,629 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:17:24,629 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:17:24,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:17:24,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:17:25,127 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:17:25,142 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 02:17:25,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 149 treesize of output 141 [2022-11-22 02:17:25,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:17:25,203 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:17:25,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 149 treesize of output 145 [2022-11-22 02:17:25,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:25,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:25,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:25,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:25,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:25,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:25,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:25,587 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 43 for LOIs [2022-11-22 02:17:25,634 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:17:26,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1255919490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:17:26,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:17:26,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 5, 5] total 18 [2022-11-22 02:17:26,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955079346] [2022-11-22 02:17:26,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:17:26,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 02:17:26,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:17:26,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 02:17:26,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2022-11-22 02:17:26,586 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 9 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:17:27,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:17:27,614 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2022-11-22 02:17:27,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 02:17:27,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-22 02:17:27,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:17:27,617 INFO L225 Difference]: With dead ends: 35 [2022-11-22 02:17:27,617 INFO L226 Difference]: Without dead ends: 33 [2022-11-22 02:17:27,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2022-11-22 02:17:27,619 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 32 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:17:27,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 109 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:17:27,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-22 02:17:27,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2022-11-22 02:17:27,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 23 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:17:27,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-11-22 02:17:27,633 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 11 [2022-11-22 02:17:27,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:17:27,634 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-11-22 02:17:27,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 02:17:27,634 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-11-22 02:17:27,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 02:17:27,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:27,635 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:17:27,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:17:27,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-22 02:17:27,841 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:17:27,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:27,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1667624743, now seen corresponding path program 1 times [2022-11-22 02:17:27,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:27,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269877025] [2022-11-22 02:17:27,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:27,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:27,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:17:27,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:27,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269877025] [2022-11-22 02:17:27,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269877025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:17:27,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:17:27,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:17:27,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615306787] [2022-11-22 02:17:27,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:17:27,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:17:27,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:17:27,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:17:27,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:17:27,987 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:17:28,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:17:28,035 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2022-11-22 02:17:28,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:17:28,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2022-11-22 02:17:28,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:17:28,038 INFO L225 Difference]: With dead ends: 50 [2022-11-22 02:17:28,039 INFO L226 Difference]: Without dead ends: 31 [2022-11-22 02:17:28,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:17:28,045 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 27 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 41 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 02:17:28,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 41 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:17:28,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-22 02:17:28,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2022-11-22 02:17:28,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 24 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:17:28,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2022-11-22 02:17:28,058 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 14 [2022-11-22 02:17:28,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:17:28,059 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2022-11-22 02:17:28,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:17:28,060 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2022-11-22 02:17:28,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 02:17:28,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:28,061 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:17:28,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:17:28,062 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 02:17:28,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:28,062 INFO L85 PathProgramCache]: Analyzing trace with hash -647673377, now seen corresponding path program 1 times [2022-11-22 02:17:28,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:28,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887798460] [2022-11-22 02:17:28,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:28,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:28,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 02:17:28,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:28,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887798460] [2022-11-22 02:17:28,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887798460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:17:28,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:17:28,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:17:28,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675999724] [2022-11-22 02:17:28,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:17:28,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:17:28,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:17:28,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:17:28,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:17:28,167 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:17:28,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:17:28,221 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2022-11-22 02:17:28,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:17:28,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-11-22 02:17:28,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:17:28,223 INFO L225 Difference]: With dead ends: 46 [2022-11-22 02:17:28,223 INFO L226 Difference]: Without dead ends: 42 [2022-11-22 02:17:28,224 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 02:17:28,224 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 11 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:17:28,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 53 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:17:28,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-22 02:17:28,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2022-11-22 02:17:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 31 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 02:17:28,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-11-22 02:17:28,249 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 17 [2022-11-22 02:17:28,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:17:28,249 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-11-22 02:17:28,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:17:28,250 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-11-22 02:17:28,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 02:17:28,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:28,251 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:17:28,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:17:28,251 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:17:28,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:28,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1893067609, now seen corresponding path program 1 times [2022-11-22 02:17:28,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:28,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453406164] [2022-11-22 02:17:28,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:28,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:28,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 02:17:28,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:28,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453406164] [2022-11-22 02:17:28,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453406164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:17:28,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:17:28,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:17:28,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825042163] [2022-11-22 02:17:28,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:17:28,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:17:28,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:17:28,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:17:28,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:17:28,349 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:17:28,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:17:28,396 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2022-11-22 02:17:28,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:17:28,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2022-11-22 02:17:28,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:17:28,397 INFO L225 Difference]: With dead ends: 43 [2022-11-22 02:17:28,397 INFO L226 Difference]: Without dead ends: 35 [2022-11-22 02:17:28,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 02:17:28,398 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:17:28,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 58 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:17:28,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-22 02:17:28,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-22 02:17:28,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 29 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 02:17:28,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-11-22 02:17:28,409 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 20 [2022-11-22 02:17:28,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:17:28,410 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-11-22 02:17:28,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:17:28,410 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-11-22 02:17:28,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-22 02:17:28,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:28,411 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:17:28,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:17:28,412 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 02:17:28,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:28,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1374365312, now seen corresponding path program 1 times [2022-11-22 02:17:28,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:28,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128738682] [2022-11-22 02:17:28,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:28,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:28,564 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 02:17:28,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:28,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128738682] [2022-11-22 02:17:28,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128738682] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:17:28,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253777560] [2022-11-22 02:17:28,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:28,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:17:28,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:17:28,566 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:17:28,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:17:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:28,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:17:28,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:17:28,755 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-22 02:17:28,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:17:28,801 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 02:17:28,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253777560] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:17:28,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1764810110] [2022-11-22 02:17:28,804 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 02:17:28,804 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:17:28,805 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:17:28,805 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:17:28,805 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:17:28,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:17:28,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:17:28,955 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:17:28,969 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:17:28,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 149 treesize of output 145 [2022-11-22 02:17:28,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:17:28,994 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 02:17:28,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 133 [2022-11-22 02:17:29,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:29,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:29,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:29,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:29,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:29,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:29,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:29,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:29,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 118 [2022-11-22 02:17:29,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:29,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 118 [2022-11-22 02:17:29,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:29,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:29,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:30,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:30,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:30,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:30,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:30,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:30,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:30,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:30,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:30,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:30,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:30,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:30,760 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 63 for LOIs [2022-11-22 02:17:30,857 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:17:33,272 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '804#(and (< 2147483646 |ULTIMATE.start_alloc_17_#t~post38#1|) (<= |ULTIMATE.start_alloc_17_~len#1| 10) (<= |ULTIMATE.start_alloc_17_~array#1.offset| 0) (= |ULTIMATE.start_entry_point_~array~0#1.offset| 0) (<= |ULTIMATE.start_alloc_17_#in~len#1| 10) (= |ULTIMATE.start_alloc_17_~p~0#1.offset| 0) (<= |ULTIMATE.start_alloc_17_#in~array#1.offset| 0) (<= 0 |ULTIMATE.start_alloc_17_~array#1.offset|) (= |~#ldv_global_msg_list~0.offset| 0) (<= 0 |ULTIMATE.start_alloc_17_~i~0#1|) (<= 0 |ULTIMATE.start_alloc_17_#in~array#1.offset|) (= 10 |ULTIMATE.start_entry_point_~len~0#1|) (<= 10 |ULTIMATE.start_entry_point_~i~1#1|) (<= 10 |ULTIMATE.start_alloc_17_#in~len#1|) (= |~#ldv_global_msg_list~0.base| 1) (<= 10 |ULTIMATE.start_alloc_17_~len#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 02:17:33,272 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:17:33,272 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:17:33,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-11-22 02:17:33,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343444141] [2022-11-22 02:17:33,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:17:33,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 02:17:33,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:17:33,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 02:17:33,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=585, Unknown=0, NotChecked=0, Total=702 [2022-11-22 02:17:33,275 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-22 02:17:33,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:17:33,427 INFO L93 Difference]: Finished difference Result 66 states and 73 transitions. [2022-11-22 02:17:33,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:17:33,428 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2022-11-22 02:17:33,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:17:33,430 INFO L225 Difference]: With dead ends: 66 [2022-11-22 02:17:33,430 INFO L226 Difference]: Without dead ends: 41 [2022-11-22 02:17:33,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2022-11-22 02:17:33,432 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 37 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:17:33,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 111 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:17:33,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-22 02:17:33,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-22 02:17:33,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 35 states have internal predecessors, (38), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 02:17:33,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2022-11-22 02:17:33,465 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 25 [2022-11-22 02:17:33,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:17:33,465 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2022-11-22 02:17:33,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-22 02:17:33,465 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2022-11-22 02:17:33,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-22 02:17:33,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:33,467 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:17:33,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:17:33,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:17:33,680 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:17:33,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:33,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1136514880, now seen corresponding path program 2 times [2022-11-22 02:17:33,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:33,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584645671] [2022-11-22 02:17:33,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:33,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:33,818 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-22 02:17:33,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:33,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584645671] [2022-11-22 02:17:33,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584645671] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:17:33,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867038244] [2022-11-22 02:17:33,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 02:17:33,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:17:33,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:17:33,824 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:17:33,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:17:33,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 02:17:33,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:17:33,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:17:33,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:17:33,989 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-22 02:17:33,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:17:34,066 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-22 02:17:34,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867038244] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:17:34,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2109361600] [2022-11-22 02:17:34,069 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 02:17:34,070 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:17:34,070 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:17:34,070 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:17:34,070 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:17:34,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:17:34,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:17:34,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:34,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:17:34,196 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:17:34,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 149 treesize of output 145 [2022-11-22 02:17:34,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:17:34,217 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 02:17:34,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 133 [2022-11-22 02:17:34,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:34,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:34,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:34,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:34,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:34,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:34,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:34,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 133 [2022-11-22 02:17:34,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 133 [2022-11-22 02:17:34,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:34,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:35,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:35,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:35,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:35,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:35,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:35,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:35,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:35,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:35,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:35,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:35,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:35,653 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 63 for LOIs [2022-11-22 02:17:35,719 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:17:37,888 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1156#(and (< 2147483646 |ULTIMATE.start_alloc_17_#t~post38#1|) (<= |ULTIMATE.start_alloc_17_~len#1| 10) (<= |ULTIMATE.start_alloc_17_~array#1.offset| 0) (= |ULTIMATE.start_entry_point_~array~0#1.offset| 0) (<= |ULTIMATE.start_alloc_17_#in~len#1| 10) (= |ULTIMATE.start_alloc_17_~p~0#1.offset| 0) (<= |ULTIMATE.start_alloc_17_#in~array#1.offset| 0) (<= 0 |ULTIMATE.start_alloc_17_~array#1.offset|) (= |~#ldv_global_msg_list~0.offset| 0) (<= 0 |ULTIMATE.start_alloc_17_~i~0#1|) (<= 0 |ULTIMATE.start_alloc_17_#in~array#1.offset|) (= 10 |ULTIMATE.start_entry_point_~len~0#1|) (<= 10 |ULTIMATE.start_entry_point_~i~1#1|) (<= 10 |ULTIMATE.start_alloc_17_#in~len#1|) (= |~#ldv_global_msg_list~0.base| 1) (<= 10 |ULTIMATE.start_alloc_17_~len#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 02:17:37,888 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:17:37,888 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:17:37,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-22 02:17:37,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605677012] [2022-11-22 02:17:37,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:17:37,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:17:37,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:17:37,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:17:37,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2022-11-22 02:17:37,890 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 02:17:38,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:17:38,148 INFO L93 Difference]: Finished difference Result 85 states and 101 transitions. [2022-11-22 02:17:38,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 02:17:38,150 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 31 [2022-11-22 02:17:38,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:17:38,152 INFO L225 Difference]: With dead ends: 85 [2022-11-22 02:17:38,152 INFO L226 Difference]: Without dead ends: 83 [2022-11-22 02:17:38,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 69 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2022-11-22 02:17:38,153 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 46 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:17:38,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 129 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:17:38,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-22 02:17:38,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 59. [2022-11-22 02:17:38,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 45 states have (on average 1.288888888888889) internal successors, (58), 50 states have internal predecessors, (58), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 02:17:38,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2022-11-22 02:17:38,168 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 31 [2022-11-22 02:17:38,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:17:38,169 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2022-11-22 02:17:38,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 02:17:38,169 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2022-11-22 02:17:38,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 02:17:38,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:38,170 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:17:38,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:17:38,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:17:38,381 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:17:38,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:38,381 INFO L85 PathProgramCache]: Analyzing trace with hash 872222994, now seen corresponding path program 1 times [2022-11-22 02:17:38,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:38,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541451] [2022-11-22 02:17:38,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:38,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:38,576 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 02:17:38,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:38,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541451] [2022-11-22 02:17:38,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541451] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:17:38,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210711072] [2022-11-22 02:17:38,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:38,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:17:38,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:17:38,578 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:17:38,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:17:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:38,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 02:17:38,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:17:38,804 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 02:17:38,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:17:38,921 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 02:17:38,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210711072] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:17:38,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1906413966] [2022-11-22 02:17:38,924 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 02:17:38,924 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:17:38,924 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:17:38,925 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:17:38,925 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:17:38,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:17:38,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:17:39,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:17:39,081 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 02:17:39,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 149 treesize of output 141 [2022-11-22 02:17:39,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:17:39,112 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:17:39,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 149 treesize of output 145 [2022-11-22 02:17:39,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:39,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:39,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:39,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:39,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:39,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:39,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:39,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:39,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:39,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 118 [2022-11-22 02:17:39,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:39,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 118 [2022-11-22 02:17:39,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:39,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:39,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:39,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:40,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:40,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:40,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:40,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:40,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:40,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:40,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:40,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:40,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:40,495 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 63 for LOIs [2022-11-22 02:17:40,558 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:17:42,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1906413966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:17:42,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:17:42,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [10, 10, 10] total 38 [2022-11-22 02:17:42,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389372607] [2022-11-22 02:17:42,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:17:42,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-22 02:17:42,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:17:42,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-22 02:17:42,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1183, Unknown=0, NotChecked=0, Total=1406 [2022-11-22 02:17:42,601 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:17:45,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:17:45,532 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2022-11-22 02:17:45,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-22 02:17:45,533 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-11-22 02:17:45,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:17:45,535 INFO L225 Difference]: With dead ends: 59 [2022-11-22 02:17:45,536 INFO L226 Difference]: Without dead ends: 55 [2022-11-22 02:17:45,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 65 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 996 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=320, Invalid=1936, Unknown=0, NotChecked=0, Total=2256 [2022-11-22 02:17:45,537 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 54 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:17:45,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 38 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:17:45,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-22 02:17:45,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 35. [2022-11-22 02:17:45,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 29 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 02:17:45,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-11-22 02:17:45,566 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 32 [2022-11-22 02:17:45,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:17:45,567 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-11-22 02:17:45,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:17:45,568 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-11-22 02:17:45,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-22 02:17:45,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:45,571 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:17:45,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:17:45,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:17:45,777 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:17:45,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:45,777 INFO L85 PathProgramCache]: Analyzing trace with hash 639008678, now seen corresponding path program 1 times [2022-11-22 02:17:45,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:45,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852915933] [2022-11-22 02:17:45,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:45,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:45,965 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 02:17:45,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:45,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852915933] [2022-11-22 02:17:45,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852915933] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:17:45,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189018647] [2022-11-22 02:17:45,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:45,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:17:45,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:17:45,967 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:17:45,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 02:17:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:46,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 02:17:46,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:17:46,194 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 02:17:46,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:17:46,305 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 02:17:46,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189018647] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:17:46,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [611276111] [2022-11-22 02:17:46,310 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-22 02:17:46,310 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:17:46,311 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:17:46,311 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:17:46,311 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:17:46,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:17:46,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:17:46,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:46,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:17:46,444 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 02:17:46,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 149 treesize of output 141 [2022-11-22 02:17:46,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:17:46,465 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:17:46,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 149 treesize of output 145 [2022-11-22 02:17:46,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:46,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:46,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:46,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:46,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:46,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:46,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:46,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:46,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:46,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:46,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:46,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 118 [2022-11-22 02:17:46,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:46,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 118 [2022-11-22 02:17:47,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:47,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:47,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:47,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:47,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:47,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:47,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:47,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:47,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:47,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:47,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:47,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:47,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2022-11-22 02:17:47,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:17:48,046 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 63 for LOIs [2022-11-22 02:17:48,114 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:17:51,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [611276111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:17:51,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:17:51,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [10, 10, 10] total 41 [2022-11-22 02:17:51,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661033806] [2022-11-22 02:17:51,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:17:51,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-22 02:17:51,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:17:51,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-22 02:17:51,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=1393, Unknown=0, NotChecked=0, Total=1640 [2022-11-22 02:17:51,227 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:17:54,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:17:54,903 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2022-11-22 02:17:54,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 02:17:54,903 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2022-11-22 02:17:54,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:17:54,904 INFO L225 Difference]: With dead ends: 40 [2022-11-22 02:17:54,904 INFO L226 Difference]: Without dead ends: 38 [2022-11-22 02:17:54,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1236 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=380, Invalid=2482, Unknown=0, NotChecked=0, Total=2862 [2022-11-22 02:17:54,906 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 57 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:17:54,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 23 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:17:54,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-22 02:17:54,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-22 02:17:54,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 32 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 02:17:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-11-22 02:17:54,917 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 34 [2022-11-22 02:17:54,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:17:54,918 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-11-22 02:17:54,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:17:54,918 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-11-22 02:17:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-22 02:17:54,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:54,919 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:17:54,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-22 02:17:55,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:17:55,124 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 02:17:55,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:55,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1412575340, now seen corresponding path program 1 times [2022-11-22 02:17:55,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:55,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810194183] [2022-11-22 02:17:55,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:55,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:55,293 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 02:17:55,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:55,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810194183] [2022-11-22 02:17:55,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810194183] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:17:55,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102873304] [2022-11-22 02:17:55,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:55,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:17:55,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:17:55,295 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:17:55,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 02:17:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:55,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 02:17:55,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:17:55,535 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 02:17:55,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:17:55,642 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 02:17:55,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102873304] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:17:55,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1937341335] [2022-11-22 02:17:55,647 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2022-11-22 02:17:55,647 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:17:55,647 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:17:55,647 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:17:55,648 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:17:55,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:17:55,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:17:55,758 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:17:55,769 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 02:17:55,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 149 treesize of output 141 [2022-11-22 02:17:55,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:17:55,792 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:17:55,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 149 treesize of output 145 [2022-11-22 02:17:55,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:55,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:55,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:55,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:55,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:55,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:55,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:56,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:56,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:56,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:56,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 133 [2022-11-22 02:17:56,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 133 [2022-11-22 02:17:56,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:56,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:56,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:56,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:56,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:17:56,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:56,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:56,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:56,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:56,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:56,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:57,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:57,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2022-11-22 02:17:57,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:17:57,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:57,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:57,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:57,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-22 02:17:57,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:17:57,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2022-11-22 02:17:57,438 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 02:17:57,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 02:17:57,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2022-11-22 02:17:57,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:17:57,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:57,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:57,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2022-11-22 02:17:57,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:17:57,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 02:17:57,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:17:57,630 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 63 for LOIs [2022-11-22 02:17:57,721 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:18:00,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1937341335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:18:00,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:18:00,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [10, 10, 10] total 41 [2022-11-22 02:18:00,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012257304] [2022-11-22 02:18:00,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:18:00,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-22 02:18:00,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:18:00,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-22 02:18:00,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=1393, Unknown=0, NotChecked=0, Total=1640 [2022-11-22 02:18:00,816 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 18 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:18:04,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:18:04,533 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2022-11-22 02:18:04,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 02:18:04,533 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2022-11-22 02:18:04,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:18:04,534 INFO L225 Difference]: With dead ends: 38 [2022-11-22 02:18:04,534 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:18:04,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 75 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=380, Invalid=2482, Unknown=0, NotChecked=0, Total=2862 [2022-11-22 02:18:04,536 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 48 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:18:04,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 2 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:18:04,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:18:04,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:18:04,537 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 02:18:04,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:18:04,538 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-11-22 02:18:04,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:18:04,538 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:18:04,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:18:04,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:18:04,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:18:04,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-22 02:18:04,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-22 02:18:04,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-22 02:18:04,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-22 02:18:04,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-22 02:18:04,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-22 02:18:04,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-22 02:18:04,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-22 02:18:04,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 02:18:04,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 02:18:04,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 02:18:06,415 INFO L895 garLoopResultBuilder]: At program point ldv_mallocENTRY(lines 525 531) the Hoare annotation is: (or (let ((.cse0 (not (= |#NULL.offset| 0))) (.cse1 (not (= |~#ldv_global_msg_list~0.offset| 0))) (.cse2 (not (= |#NULL.base| 0))) (.cse3 (not (= |~#ldv_global_msg_list~0.base| 1)))) (and (or .cse0 .cse1 (not (= |ldv_malloc_#in~size| 4)) .cse2 (not (<= 0 |#StackHeapBarrier|)) .cse3) (let ((.cse5 (select |#memory_$Pointer$.base| |~#ldv_global_msg_list~0.base|)) (.cse4 (select |#memory_$Pointer$.offset| |~#ldv_global_msg_list~0.base|)) (.cse6 (+ |~#ldv_global_msg_list~0.offset| 4))) (or (not (= (select |old(#valid)| 1) 1)) .cse0 (not (= 40 |ldv_malloc_#in~size|)) .cse1 (not (< 0 |#StackHeapBarrier|)) (not (= (select |old(#length)| 1) 8)) .cse2 (not (= (select .cse4 |~#ldv_global_msg_list~0.offset|) |~#ldv_global_msg_list~0.offset|)) (not (= |~#ldv_global_msg_list~0.base| (select .cse5 .cse6))) (not (= (select |old(#valid)| 0) 0)) (not (= |~#ldv_global_msg_list~0.base| (select .cse5 |~#ldv_global_msg_list~0.offset|))) (not (= |~#ldv_global_msg_list~0.offset| (select .cse4 .cse6))) .cse3)))) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2022-11-22 02:18:06,415 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 525 531) no Hoare annotation was computed. [2022-11-22 02:18:06,416 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 764) no Hoare annotation was computed. [2022-11-22 02:18:06,416 INFO L899 garLoopResultBuilder]: For program point L766(line 766) no Hoare annotation was computed. [2022-11-22 02:18:06,416 INFO L895 garLoopResultBuilder]: At program point L766-1(lines 760 776) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_entry_point_~array~0#1.offset| 0)) (.cse1 (= |~#ldv_global_msg_list~0.offset| 0)) (.cse2 (= 10 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse3 (= |~#ldv_global_msg_list~0.base| 1)) (.cse4 (= |#NULL.offset| 0)) (.cse5 (<= 0 |#StackHeapBarrier|)) (.cse6 (= |#NULL.base| 0))) (or (and (<= 0 |ULTIMATE.start_entry_point_~i~1#1|) .cse0 .cse1 (= |ULTIMATE.start_alloc_17_~i~0#1| 0) .cse2 .cse3 .cse4 .cse5 .cse6) (and (<= |ULTIMATE.start_alloc_17_~len#1| 10) (<= |ULTIMATE.start_alloc_17_~array#1.offset| 0) .cse0 (<= |ULTIMATE.start_alloc_17_#in~len#1| 10) (= |ULTIMATE.start_alloc_17_~p~0#1.offset| 0) (<= |ULTIMATE.start_alloc_17_#in~array#1.offset| 0) (<= 0 |ULTIMATE.start_alloc_17_~array#1.offset|) .cse1 (<= 0 |ULTIMATE.start_alloc_17_~i~0#1|) (<= 0 |ULTIMATE.start_alloc_17_#in~array#1.offset|) (= |ULTIMATE.start_alloc_17_~p~0#1.base| 0) .cse2 (< |ULTIMATE.start_alloc_17_~i~0#1| |ULTIMATE.start_alloc_17_~len#1|) (<= 10 |ULTIMATE.start_entry_point_~i~1#1|) (<= 10 |ULTIMATE.start_alloc_17_#in~len#1|) .cse3 (<= 10 |ULTIMATE.start_alloc_17_~len#1|) .cse4 .cse5 .cse6))) [2022-11-22 02:18:06,416 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 771) no Hoare annotation was computed. [2022-11-22 02:18:06,416 INFO L902 garLoopResultBuilder]: At program point L775(lines 760 776) the Hoare annotation is: true [2022-11-22 02:18:06,417 INFO L899 garLoopResultBuilder]: For program point L771(line 771) no Hoare annotation was computed. [2022-11-22 02:18:06,417 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 782) no Hoare annotation was computed. [2022-11-22 02:18:06,417 INFO L899 garLoopResultBuilder]: For program point L771-4(line 771) no Hoare annotation was computed. [2022-11-22 02:18:06,417 INFO L899 garLoopResultBuilder]: For program point L771-5(line 771) no Hoare annotation was computed. [2022-11-22 02:18:06,417 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 02:18:06,417 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 771) no Hoare annotation was computed. [2022-11-22 02:18:06,417 INFO L895 garLoopResultBuilder]: At program point L771-6(lines 771 774) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_entry_point_~i~1#1|)) (.cse1 (= |ULTIMATE.start_entry_point_~array~0#1.offset| 0)) (.cse3 (= |~#ldv_global_msg_list~0.offset| 0)) (.cse4 (= 10 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse2 (+ |ULTIMATE.start_alloc_17_~j~0#1| 1)) (.cse5 (= |~#ldv_global_msg_list~0.base| 1)) (.cse6 (= |#NULL.offset| 0)) (.cse7 (<= 0 |#StackHeapBarrier|)) (.cse8 (= |#NULL.base| 0))) (or (and .cse0 (<= |ULTIMATE.start_alloc_17_~len#1| 10) (<= |ULTIMATE.start_alloc_17_~array#1.offset| 0) .cse1 (<= |ULTIMATE.start_alloc_17_#in~len#1| 10) (<= 0 .cse2) (= |ULTIMATE.start_alloc_17_~p~0#1.offset| 0) (<= |ULTIMATE.start_alloc_17_#in~array#1.offset| 0) (<= 0 |ULTIMATE.start_alloc_17_~array#1.offset|) .cse3 (<= 0 |ULTIMATE.start_alloc_17_~i~0#1|) (<= 0 |ULTIMATE.start_alloc_17_#in~array#1.offset|) (= |ULTIMATE.start_alloc_17_~p~0#1.base| 0) .cse4 (< |ULTIMATE.start_alloc_17_~i~0#1| |ULTIMATE.start_alloc_17_~len#1|) (<= |ULTIMATE.start_alloc_17_~j~0#1| 9) (<= 10 |ULTIMATE.start_entry_point_~i~1#1|) (<= 10 |ULTIMATE.start_alloc_17_#in~len#1|) .cse5 (<= 10 |ULTIMATE.start_alloc_17_~len#1|) .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse3 (= |ULTIMATE.start_alloc_17_~i~0#1| 0) .cse4 (<= .cse2 0) .cse5 .cse6 .cse7 .cse8))) [2022-11-22 02:18:06,418 INFO L895 garLoopResultBuilder]: At program point L780(line 780) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#ldv_global_msg_list~0.base|)) (.cse1 (+ |~#ldv_global_msg_list~0.offset| 4)) (.cse2 (select |#memory_$Pointer$.offset| |~#ldv_global_msg_list~0.base|))) (and (= |~#ldv_global_msg_list~0.base| (select .cse0 |~#ldv_global_msg_list~0.offset|)) (= (select |#length| 1) 8) (= |~#ldv_global_msg_list~0.base| (select .cse0 .cse1)) (= |~#ldv_global_msg_list~0.offset| 0) (= 10 |ULTIMATE.start_entry_point_~len~0#1|) (= |~#ldv_global_msg_list~0.offset| (select .cse2 .cse1)) (= (select |#valid| 1) 1) (= |~#ldv_global_msg_list~0.base| 1) (= (select |#valid| 0) 0) (= |#NULL.offset| 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= (select .cse2 |~#ldv_global_msg_list~0.offset|) |~#ldv_global_msg_list~0.offset|))) [2022-11-22 02:18:06,418 INFO L899 garLoopResultBuilder]: For program point L780-1(line 780) no Hoare annotation was computed. [2022-11-22 02:18:06,418 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 782) no Hoare annotation was computed. [2022-11-22 02:18:06,418 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 02:18:06,418 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 771) no Hoare annotation was computed. [2022-11-22 02:18:06,418 INFO L899 garLoopResultBuilder]: For program point L764-3(line 764) no Hoare annotation was computed. [2022-11-22 02:18:06,418 INFO L899 garLoopResultBuilder]: For program point L764-4(line 764) no Hoare annotation was computed. [2022-11-22 02:18:06,419 INFO L895 garLoopResultBuilder]: At program point L764-5(lines 764 768) the Hoare annotation is: (let ((.cse0 (<= 0 |#NULL.base|)) (.cse1 (<= |ULTIMATE.start_alloc_17_~len#1| 10)) (.cse2 (<= |ULTIMATE.start_alloc_17_~array#1.offset| 0)) (.cse3 (<= 0 |~#ldv_global_msg_list~0.offset|)) (.cse4 (<= |ULTIMATE.start_entry_point_~array~0#1.offset| 0)) (.cse5 (<= |ULTIMATE.start_alloc_17_#in~len#1| 10)) (.cse6 (<= |ULTIMATE.start_alloc_17_#in~array#1.offset| 0)) (.cse7 (<= 0 |ULTIMATE.start_alloc_17_~array#1.offset|)) (.cse8 (<= 0 |ULTIMATE.start_alloc_17_#in~array#1.offset|)) (.cse9 (<= |ULTIMATE.start_entry_point_~len~0#1| 10)) (.cse10 (<= |#NULL.offset| 0)) (.cse11 (<= 10 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse12 (<= 0 |ULTIMATE.start_entry_point_~array~0#1.offset|)) (.cse13 (<= |~#ldv_global_msg_list~0.base| 1)) (.cse14 (<= 10 |ULTIMATE.start_entry_point_~i~1#1|)) (.cse15 (<= 10 |ULTIMATE.start_alloc_17_#in~len#1|)) (.cse16 (<= |#NULL.base| 0)) (.cse17 (<= |~#ldv_global_msg_list~0.offset| 0)) (.cse18 (<= 10 |ULTIMATE.start_alloc_17_~len#1|)) (.cse19 (<= 1 |~#ldv_global_msg_list~0.base|)) (.cse20 (<= 0 |#NULL.offset|)) (.cse21 (<= 0 |#StackHeapBarrier|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (<= 0 |ULTIMATE.start_alloc_17_~i~0#1|) .cse8 .cse9 .cse10 .cse11 (<= |ULTIMATE.start_alloc_17_~i~0#1| 0) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (<= 0 |ULTIMATE.start_alloc_17_~p~0#1.offset|) .cse6 .cse7 .cse8 (<= |ULTIMATE.start_alloc_17_~i~0#1| 2147483647) .cse9 .cse10 .cse11 (<= |ULTIMATE.start_alloc_17_~p~0#1.offset| 0) .cse12 .cse13 (<= 1 |ULTIMATE.start_alloc_17_~i~0#1|) .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21))) [2022-11-22 02:18:06,419 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 787) no Hoare annotation was computed. [2022-11-22 02:18:06,419 INFO L899 garLoopResultBuilder]: For program point L777(lines 777 788) no Hoare annotation was computed. [2022-11-22 02:18:06,419 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 764) no Hoare annotation was computed. [2022-11-22 02:18:06,419 INFO L895 garLoopResultBuilder]: At program point L765(line 765) the Hoare annotation is: (and (let ((.cse0 (<= 0 |#NULL.base|)) (.cse1 (<= |ULTIMATE.start_alloc_17_~len#1| 10)) (.cse2 (<= |ULTIMATE.start_alloc_17_~array#1.offset| 0)) (.cse3 (<= 0 |~#ldv_global_msg_list~0.offset|)) (.cse4 (<= |ULTIMATE.start_entry_point_~array~0#1.offset| 0)) (.cse5 (<= |ULTIMATE.start_alloc_17_#in~len#1| 10)) (.cse6 (<= |ULTIMATE.start_alloc_17_#in~array#1.offset| 0)) (.cse7 (<= 0 |ULTIMATE.start_alloc_17_~array#1.offset|)) (.cse8 (<= 0 |ULTIMATE.start_alloc_17_#in~array#1.offset|)) (.cse9 (<= |ULTIMATE.start_entry_point_~len~0#1| 10)) (.cse10 (<= |#NULL.offset| 0)) (.cse11 (<= 10 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse12 (<= 0 |ULTIMATE.start_entry_point_~array~0#1.offset|)) (.cse13 (<= |~#ldv_global_msg_list~0.base| 1)) (.cse14 (<= 10 |ULTIMATE.start_entry_point_~i~1#1|)) (.cse15 (<= 10 |ULTIMATE.start_alloc_17_#in~len#1|)) (.cse16 (<= |#NULL.base| 0)) (.cse17 (<= |~#ldv_global_msg_list~0.offset| 0)) (.cse18 (<= 10 |ULTIMATE.start_alloc_17_~len#1|)) (.cse19 (<= 1 |~#ldv_global_msg_list~0.base|)) (.cse20 (<= 0 |#NULL.offset|)) (.cse21 (<= 0 |#StackHeapBarrier|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (<= 0 |ULTIMATE.start_alloc_17_~p~0#1.offset|) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (<= |ULTIMATE.start_alloc_17_~p~0#1.offset| 0) .cse12 .cse13 (<= 1 |ULTIMATE.start_alloc_17_~i~0#1|) .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (<= 0 |ULTIMATE.start_alloc_17_~i~0#1|) .cse8 .cse9 .cse10 .cse11 (<= |ULTIMATE.start_alloc_17_~i~0#1| 0) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21))) (< |ULTIMATE.start_alloc_17_~i~0#1| |ULTIMATE.start_alloc_17_~len#1|)) [2022-11-22 02:18:06,420 INFO L899 garLoopResultBuilder]: For program point L765-1(line 765) no Hoare annotation was computed. [2022-11-22 02:18:06,420 INFO L899 garLoopResultBuilder]: For program point L782-3(line 782) no Hoare annotation was computed. [2022-11-22 02:18:06,420 INFO L899 garLoopResultBuilder]: For program point L782-4(line 782) no Hoare annotation was computed. [2022-11-22 02:18:06,420 INFO L895 garLoopResultBuilder]: At program point L782-5(lines 782 784) the Hoare annotation is: (let ((.cse6 (select |#memory_$Pointer$.offset| |~#ldv_global_msg_list~0.base|))) (and (<= 0 |ULTIMATE.start_entry_point_~i~1#1|) (= (select |#length| 1) 8) (= (select |#valid| 1) 1) (= |~#ldv_global_msg_list~0.base| 1) (= (select |#valid| 0) 0) (= |#NULL.offset| 0) (let ((.cse7 (+ |~#ldv_global_msg_list~0.offset| 4)) (.cse8 (select |#memory_$Pointer$.base| |~#ldv_global_msg_list~0.base|))) (let ((.cse0 (= |~#ldv_global_msg_list~0.base| (select .cse8 |~#ldv_global_msg_list~0.offset|))) (.cse1 (= |~#ldv_global_msg_list~0.base| (select .cse8 .cse7))) (.cse2 (= |ULTIMATE.start_entry_point_~array~0#1.offset| 0)) (.cse3 (= |~#ldv_global_msg_list~0.offset| 0)) (.cse4 (= 10 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse5 (= |~#ldv_global_msg_list~0.offset| (select .cse6 .cse7)))) (or (and .cse0 (= |ULTIMATE.start_entry_point_~array~0#1.base| 0) .cse1 .cse2 .cse3 .cse4 .cse5) (and (< |ULTIMATE.start_entry_point_~array~0#1.base| |#StackHeapBarrier|) .cse0 (= (select |#length| |ULTIMATE.start_entry_point_~array~0#1.base|) (* (mod |ULTIMATE.start_entry_point_~len~0#1| 1073741824) 4)) .cse1 .cse2 (= (select |#valid| |ULTIMATE.start_entry_point_~array~0#1.base|) 1) .cse3 .cse4 .cse5)))) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= (select .cse6 |~#ldv_global_msg_list~0.offset|) |~#ldv_global_msg_list~0.offset|))) [2022-11-22 02:18:06,420 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 771) no Hoare annotation was computed. [2022-11-22 02:18:06,423 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:18:06,425 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:18:06,445 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,446 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,447 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:18:06,447 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,447 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,448 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:18:06,448 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:18:06,449 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,450 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,450 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:18:06,450 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,451 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,451 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:18:06,451 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:18:06,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:18:06 BoogieIcfgContainer [2022-11-22 02:18:06,453 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:18:06,453 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:18:06,453 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:18:06,454 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:18:06,454 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:17:23" (3/4) ... [2022-11-22 02:18:06,457 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:18:06,462 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-11-22 02:18:06,467 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-22 02:18:06,467 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-22 02:18:06,467 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 02:18:06,493 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((0 <= i && array == 0) && ldv_global_msg_list == 0) && i == 0) && 10 == len) && ldv_global_msg_list == 1) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((len <= 10 && array <= 0) && array == 0) && \old(len) <= 10) && p == 0) && array <= 0) && 0 <= array) && ldv_global_msg_list == 0) && 0 <= i) && 0 <= array) && p == 0) && 10 == len) && i < len) && 10 <= i) && 10 <= \old(len)) && ldv_global_msg_list == 1) && 10 <= len) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2022-11-22 02:18:06,494 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((0 <= i && len <= 10) && array <= 0) && array == 0) && \old(len) <= 10) && 0 <= j + 1) && p == 0) && array <= 0) && 0 <= array) && ldv_global_msg_list == 0) && 0 <= i) && 0 <= array) && p == 0) && 10 == len) && i < len) && j <= 9) && 10 <= i) && 10 <= \old(len)) && ldv_global_msg_list == 1) && 10 <= len) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((0 <= i && array == 0) && ldv_global_msg_list == 0) && i == 0) && 10 == len) && j + 1 <= 0) && ldv_global_msg_list == 1) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2022-11-22 02:18:06,494 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((0 <= #NULL && len <= 10) && array <= 0) && 0 <= ldv_global_msg_list) && array <= 0) && \old(len) <= 10) && array <= 0) && 0 <= array) && 0 <= i) && 0 <= array) && len <= 10) && #NULL <= 0) && 10 <= len) && i <= 0) && 0 <= array) && ldv_global_msg_list <= 1) && 10 <= i) && 10 <= \old(len)) && #NULL <= 0) && ldv_global_msg_list <= 0) && 10 <= len) && 1 <= ldv_global_msg_list) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((((((((((((((((((((0 <= #NULL && len <= 10) && array <= 0) && 0 <= ldv_global_msg_list) && array <= 0) && \old(len) <= 10) && 0 <= p) && array <= 0) && 0 <= array) && 0 <= array) && i <= 2147483647) && len <= 10) && #NULL <= 0) && 10 <= len) && p <= 0) && 0 <= array) && ldv_global_msg_list <= 1) && 1 <= i) && 10 <= i) && 10 <= \old(len)) && #NULL <= 0) && ldv_global_msg_list <= 0) && 10 <= len) && 1 <= ldv_global_msg_list) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) [2022-11-22 02:18:06,505 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:18:06,505 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:18:06,506 INFO L158 Benchmark]: Toolchain (without parser) took 44307.55ms. Allocated memory was 182.5MB in the beginning and 385.9MB in the end (delta: 203.4MB). Free memory was 148.2MB in the beginning and 248.5MB in the end (delta: -100.2MB). Peak memory consumption was 105.6MB. Max. memory is 16.1GB. [2022-11-22 02:18:06,506 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 146.8MB. Free memory was 87.4MB in the beginning and 87.3MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:18:06,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 637.56ms. Allocated memory is still 182.5MB. Free memory was 148.2MB in the beginning and 126.5MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-22 02:18:06,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.00ms. Allocated memory is still 182.5MB. Free memory was 125.8MB in the beginning and 123.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:18:06,507 INFO L158 Benchmark]: Boogie Preprocessor took 30.26ms. Allocated memory is still 182.5MB. Free memory was 123.7MB in the beginning and 122.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:18:06,507 INFO L158 Benchmark]: RCFGBuilder took 484.51ms. Allocated memory is still 182.5MB. Free memory was 122.4MB in the beginning and 106.3MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 02:18:06,508 INFO L158 Benchmark]: TraceAbstraction took 43051.75ms. Allocated memory was 182.5MB in the beginning and 385.9MB in the end (delta: 203.4MB). Free memory was 105.7MB in the beginning and 251.6MB in the end (delta: -145.9MB). Peak memory consumption was 189.9MB. Max. memory is 16.1GB. [2022-11-22 02:18:06,508 INFO L158 Benchmark]: Witness Printer took 51.95ms. Allocated memory is still 385.9MB. Free memory was 251.6MB in the beginning and 248.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 02:18:06,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 146.8MB. Free memory was 87.4MB in the beginning and 87.3MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 637.56ms. Allocated memory is still 182.5MB. Free memory was 148.2MB in the beginning and 126.5MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.00ms. Allocated memory is still 182.5MB. Free memory was 125.8MB in the beginning and 123.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.26ms. Allocated memory is still 182.5MB. Free memory was 123.7MB in the beginning and 122.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 484.51ms. Allocated memory is still 182.5MB. Free memory was 122.4MB in the beginning and 106.3MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 43051.75ms. Allocated memory was 182.5MB in the beginning and 385.9MB in the end (delta: 203.4MB). Free memory was 105.7MB in the beginning and 251.6MB in the end (delta: -145.9MB). Peak memory consumption was 189.9MB. Max. memory is 16.1GB. * Witness Printer took 51.95ms. Allocated memory is still 385.9MB. Free memory was 251.6MB in the beginning and 248.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * 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: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: 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 2 procedures, 31 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 43.0s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 347 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 340 mSDsluCounter, 667 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 492 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1045 IncrementalHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 175 mSDtfsCounter, 1045 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 611 GetRequests, 351 SyntacticMatches, 19 SemanticMatches, 241 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4246 ImplicationChecksByTransitivity, 24.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=7, InterpolantAutomatonStates: 107, 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, 10 MinimizatonAttempts, 73 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 13 PreInvPairs, 26 NumberOfFragments, 812 HoareAnnotationTreeSize, 13 FomulaSimplifications, 90 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 5917 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 399 NumberOfCodeBlocks, 390 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 547 ConstructedInterpolants, 0 QuantifiedInterpolants, 1249 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1078 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 22 InterpolantComputations, 4 PerfectInterpolantSequences, 197/329 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 6.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 86, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 142, TOOLS_POST_TIME: 3.5s, TOOLS_POST_CALL_APPLICATIONS: 45, TOOLS_POST_CALL_TIME: 1.3s, TOOLS_POST_RETURN_APPLICATIONS: 38, TOOLS_POST_RETURN_TIME: 0.8s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 225, TOOLS_QUANTIFIERELIM_TIME: 5.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 316, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 55, DOMAIN_JOIN_TIME: 0.5s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 11, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 19, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 86, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 8, LOOP_SUMMARIZER_CACHE_MISSES: 8, LOOP_SUMMARIZER_OVERALL_TIME: 3.6s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.6s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 19, CALL_SUMMARIZER_APPLICATIONS: 38, CALL_SUMMARIZER_CACHE_MISSES: 4, CALL_SUMMARIZER_OVERALL_TIME: 0.2s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1400, DAG_COMPRESSION_RETAINED_NODES: 241, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 771]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((0 <= i && len <= 10) && array <= 0) && array == 0) && \old(len) <= 10) && 0 <= j + 1) && p == 0) && array <= 0) && 0 <= array) && ldv_global_msg_list == 0) && 0 <= i) && 0 <= array) && p == 0) && 10 == len) && i < len) && j <= 9) && 10 <= i) && 10 <= \old(len)) && ldv_global_msg_list == 1) && 10 <= len) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((0 <= i && array == 0) && ldv_global_msg_list == 0) && i == 0) && 10 == len) && j + 1 <= 0) && ldv_global_msg_list == 1) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: ((((((((0 <= i && array == 0) && ldv_global_msg_list == 0) && i == 0) && 10 == len) && ldv_global_msg_list == 1) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((len <= 10 && array <= 0) && array == 0) && \old(len) <= 10) && p == 0) && array <= 0) && 0 <= array) && ldv_global_msg_list == 0) && 0 <= i) && 0 <= array) && p == 0) && 10 == len) && i < len) && 10 <= i) && 10 <= \old(len)) && ldv_global_msg_list == 1) && 10 <= len) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((0 <= #NULL && len <= 10) && array <= 0) && 0 <= ldv_global_msg_list) && array <= 0) && \old(len) <= 10) && array <= 0) && 0 <= array) && 0 <= i) && 0 <= array) && len <= 10) && #NULL <= 0) && 10 <= len) && i <= 0) && 0 <= array) && ldv_global_msg_list <= 1) && 10 <= i) && 10 <= \old(len)) && #NULL <= 0) && ldv_global_msg_list <= 0) && 10 <= len) && 1 <= ldv_global_msg_list) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((((((((((((((((((((0 <= #NULL && len <= 10) && array <= 0) && 0 <= ldv_global_msg_list) && array <= 0) && \old(len) <= 10) && 0 <= p) && array <= 0) && 0 <= array) && 0 <= array) && i <= 2147483647) && len <= 10) && #NULL <= 0) && 10 <= len) && p <= 0) && 0 <= array) && ldv_global_msg_list <= 1) && 1 <= i) && 10 <= i) && 10 <= \old(len)) && #NULL <= 0) && ldv_global_msg_list <= 0) && 10 <= len) && 1 <= ldv_global_msg_list) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 782]: Loop Invariant [2022-11-22 02:18:06,524 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,524 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,524 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:18:06,525 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,525 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,525 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:18:06,525 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:18:06,526 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,527 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,527 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:18:06,527 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,528 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:18:06,528 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:18:06,528 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((((((((0 <= i && unknown-#length-unknown[1] == 8) && \valid[1] == 1) && ldv_global_msg_list == 1) && \valid[0] == 0) && #NULL == 0) && (((((((ldv_global_msg_list == #memory_$Pointer$[ldv_global_msg_list][ldv_global_msg_list] && array == 0) && ldv_global_msg_list == #memory_$Pointer$[ldv_global_msg_list][ldv_global_msg_list + 4]) && array == 0) && ldv_global_msg_list == 0) && 10 == len) && ldv_global_msg_list == #memory_$Pointer$[ldv_global_msg_list][ldv_global_msg_list + 4]) || ((((((((array < unknown-#StackHeapBarrier-unknown && ldv_global_msg_list == #memory_$Pointer$[ldv_global_msg_list][ldv_global_msg_list]) && unknown-#length-unknown[array] == len % 1073741824 * 4) && ldv_global_msg_list == #memory_$Pointer$[ldv_global_msg_list][ldv_global_msg_list + 4]) && array == 0) && \valid[array] == 1) && ldv_global_msg_list == 0) && 10 == len) && ldv_global_msg_list == #memory_$Pointer$[ldv_global_msg_list][ldv_global_msg_list + 4]))) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && #memory_$Pointer$[ldv_global_msg_list][ldv_global_msg_list] == ldv_global_msg_list RESULT: Ultimate proved your program to be correct! [2022-11-22 02:18:06,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643decc5-db23-4891-a4fb-0501a2cbdcac/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE