./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.07-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/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_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.07-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 468953385e0ecb57effbe4a67e36beea0bc9797d81fab044af341dde527767a1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:54:09,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:54:09,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:54:09,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:54:09,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:54:09,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:54:09,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:54:09,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:54:09,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:54:09,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:54:09,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:54:09,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:54:09,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:54:09,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:54:09,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:54:09,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:54:09,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:54:09,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:54:09,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:54:09,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:54:09,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:54:09,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:54:09,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:54:09,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:54:09,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:54:09,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:54:09,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:54:09,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:54:09,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:54:09,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:54:09,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:54:09,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:54:09,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:54:09,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:54:09,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:54:09,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:54:09,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:54:09,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:54:09,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:54:09,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:54:09,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:54:09,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 01:54:09,657 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:54:09,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:54:09,659 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:54:09,659 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:54:09,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:54:09,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:54:09,661 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:54:09,661 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:54:09,661 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:54:09,662 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:54:09,663 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:54:09,663 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:54:09,664 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:54:09,664 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:54:09,664 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:54:09,664 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:54:09,665 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:54:09,665 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:54:09,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:54:09,667 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:54:09,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:54:09,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:54:09,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:54:09,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:54:09,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:54:09,668 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:54:09,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:54:09,669 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:54:09,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:54:09,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:54:09,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:54:09,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:54:09,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:54:09,672 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:54:09,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:54:09,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:54:09,672 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:54:09,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:54:09,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:54:09,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:54:09,673 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_e4c7efc0-004c-4290-97a6-beb1dc932b9d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 468953385e0ecb57effbe4a67e36beea0bc9797d81fab044af341dde527767a1 [2022-11-22 01:54:10,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:54:10,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:54:10,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:54:10,099 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:54:10,100 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:54:10,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/termination-memory-alloca/b.07-alloca.i [2022-11-22 01:54:13,502 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:54:13,781 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:54:13,781 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/sv-benchmarks/c/termination-memory-alloca/b.07-alloca.i [2022-11-22 01:54:13,790 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/data/14763ceaa/4329826dee754bb6a88ed19a6ff00eb1/FLAGfcec4e1e7 [2022-11-22 01:54:13,804 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/data/14763ceaa/4329826dee754bb6a88ed19a6ff00eb1 [2022-11-22 01:54:13,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:54:13,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:54:13,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:54:13,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:54:13,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:54:13,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:54:13" (1/1) ... [2022-11-22 01:54:13,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1765cb33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:13, skipping insertion in model container [2022-11-22 01:54:13,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:54:13" (1/1) ... [2022-11-22 01:54:13,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:54:13,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:54:14,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:54:14,156 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:54:14,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:54:14,220 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:54:14,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:14 WrapperNode [2022-11-22 01:54:14,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:54:14,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:54:14,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:54:14,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:54:14,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:14" (1/1) ... [2022-11-22 01:54:14,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:14" (1/1) ... [2022-11-22 01:54:14,263 INFO L138 Inliner]: procedures = 111, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2022-11-22 01:54:14,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:54:14,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:54:14,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:54:14,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:54:14,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:14" (1/1) ... [2022-11-22 01:54:14,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:14" (1/1) ... [2022-11-22 01:54:14,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:14" (1/1) ... [2022-11-22 01:54:14,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:14" (1/1) ... [2022-11-22 01:54:14,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:14" (1/1) ... [2022-11-22 01:54:14,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:14" (1/1) ... [2022-11-22 01:54:14,304 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:14" (1/1) ... [2022-11-22 01:54:14,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:14" (1/1) ... [2022-11-22 01:54:14,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:54:14,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:54:14,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:54:14,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:54:14,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:14" (1/1) ... [2022-11-22 01:54:14,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:54:14,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:54:14,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:54:14,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:54:14,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:54:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:54:14,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:54:14,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:54:14,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:54:14,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:54:14,529 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:54:14,532 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:54:14,704 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:54:14,826 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:54:14,826 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:54:14,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:54:14 BoogieIcfgContainer [2022-11-22 01:54:14,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:54:14,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:54:14,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:54:14,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:54:14,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:54:13" (1/3) ... [2022-11-22 01:54:14,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44458116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:54:14, skipping insertion in model container [2022-11-22 01:54:14,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:14" (2/3) ... [2022-11-22 01:54:14,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44458116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:54:14, skipping insertion in model container [2022-11-22 01:54:14,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:54:14" (3/3) ... [2022-11-22 01:54:14,838 INFO L112 eAbstractionObserver]: Analyzing ICFG b.07-alloca.i [2022-11-22 01:54:14,866 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:54:14,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 01:54:14,920 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:54:14,928 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;@1d3c52d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:54:14,928 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-22 01:54:14,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:14,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:54:14,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:14,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:54:14,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:54:14,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:14,949 INFO L85 PathProgramCache]: Analyzing trace with hash 2095557, now seen corresponding path program 1 times [2022-11-22 01:54:14,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:14,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427606758] [2022-11-22 01:54:14,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:14,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:16,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:54:16,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:16,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427606758] [2022-11-22 01:54:16,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427606758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:54:16,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:54:16,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:54:16,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399579209] [2022-11-22 01:54:16,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:16,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:54:16,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:16,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:54:16,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:54:16,670 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:16,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:16,762 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-11-22 01:54:16,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:54:16,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 01:54:16,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:16,778 INFO L225 Difference]: With dead ends: 27 [2022-11-22 01:54:16,779 INFO L226 Difference]: Without dead ends: 20 [2022-11-22 01:54:16,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:54:16,787 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:16,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 16 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:54:16,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-22 01:54:16,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 14. [2022-11-22 01:54:16,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:16,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-22 01:54:16,830 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 4 [2022-11-22 01:54:16,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:16,831 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-22 01:54:16,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:16,831 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-22 01:54:16,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:54:16,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:16,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:54:16,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:54:16,834 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:54:16,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:16,834 INFO L85 PathProgramCache]: Analyzing trace with hash 64962319, now seen corresponding path program 1 times [2022-11-22 01:54:16,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:16,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754493545] [2022-11-22 01:54:16,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:16,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:17,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:54:17,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:17,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754493545] [2022-11-22 01:54:17,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754493545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:54:17,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:54:17,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:54:17,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567029973] [2022-11-22 01:54:17,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:17,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:54:17,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:17,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:54:17,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:54:17,522 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:17,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:17,594 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-22 01:54:17,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:54:17,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:54:17,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:17,596 INFO L225 Difference]: With dead ends: 14 [2022-11-22 01:54:17,596 INFO L226 Difference]: Without dead ends: 13 [2022-11-22 01:54:17,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:54:17,603 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:17,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 9 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:54:17,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-22 01:54:17,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-22 01:54:17,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.3) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:17,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-11-22 01:54:17,608 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 5 [2022-11-22 01:54:17,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:17,609 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-11-22 01:54:17,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:17,609 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-11-22 01:54:17,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:54:17,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:17,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:54:17,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:54:17,611 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:54:17,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:17,612 INFO L85 PathProgramCache]: Analyzing trace with hash 2013831943, now seen corresponding path program 1 times [2022-11-22 01:54:17,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:17,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600466867] [2022-11-22 01:54:17,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:17,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:18,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:54:18,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:18,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600466867] [2022-11-22 01:54:18,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600466867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:54:18,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:54:18,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:54:18,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586061817] [2022-11-22 01:54:18,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:18,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:54:18,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:18,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:54:18,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:54:18,294 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:18,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:18,328 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-11-22 01:54:18,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:54:18,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 01:54:18,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:18,330 INFO L225 Difference]: With dead ends: 13 [2022-11-22 01:54:18,330 INFO L226 Difference]: Without dead ends: 12 [2022-11-22 01:54:18,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:54:18,339 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:18,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:54:18,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-22 01:54:18,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-22 01:54:18,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:18,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-22 01:54:18,350 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 6 [2022-11-22 01:54:18,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:18,350 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-22 01:54:18,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:18,350 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-22 01:54:18,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:54:18,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:18,351 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:54:18,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:54:18,352 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:54:18,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:18,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1995719151, now seen corresponding path program 1 times [2022-11-22 01:54:18,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:18,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713513208] [2022-11-22 01:54:18,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:18,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:18,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:54:18,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:18,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713513208] [2022-11-22 01:54:18,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713513208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:54:18,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:54:18,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:54:18,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037476304] [2022-11-22 01:54:18,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:18,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:54:18,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:18,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:54:18,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:54:18,970 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:19,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:19,060 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-11-22 01:54:19,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:54:19,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 01:54:19,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:19,061 INFO L225 Difference]: With dead ends: 12 [2022-11-22 01:54:19,061 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 01:54:19,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:54:19,063 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:19,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:54:19,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 01:54:19,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-22 01:54:19,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2022-11-22 01:54:19,066 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2022-11-22 01:54:19,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:19,067 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2022-11-22 01:54:19,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:19,067 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2022-11-22 01:54:19,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 01:54:19,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:19,068 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:54:19,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:54:19,068 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:54:19,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:19,069 INFO L85 PathProgramCache]: Analyzing trace with hash 763120856, now seen corresponding path program 1 times [2022-11-22 01:54:19,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:19,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075219841] [2022-11-22 01:54:19,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:19,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:19,267 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:54:19,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:19,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075219841] [2022-11-22 01:54:19,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075219841] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:54:19,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055185491] [2022-11-22 01:54:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:19,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:54:19,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:54:19,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:54:19,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:54:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:19,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-22 01:54:19,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:54:19,525 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 11 treesize of output 7 [2022-11-22 01:54:19,641 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:54:19,642 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 1 case distinctions, treesize of input 19 treesize of output 22 [2022-11-22 01:54:19,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2022-11-22 01:54:19,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:54:19,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:54:19,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:54:19,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055185491] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:54:19,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:54:19,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 15 [2022-11-22 01:54:19,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901792092] [2022-11-22 01:54:19,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:19,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:54:19,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:19,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:54:19,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:54:19,898 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:19,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:19,948 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2022-11-22 01:54:19,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:54:19,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 01:54:19,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:19,949 INFO L225 Difference]: With dead ends: 11 [2022-11-22 01:54:19,949 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:54:19,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:54:19,951 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:19,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:54:19,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:54:19,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:54:19,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:19,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:54:19,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2022-11-22 01:54:19,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:19,953 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:54:19,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:19,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:54:19,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:54:19,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-22 01:54:19,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-22 01:54:19,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-22 01:54:19,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-22 01:54:19,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 01:54:20,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:54:20,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:54:20,212 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 558) no Hoare annotation was computed. [2022-11-22 01:54:20,213 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:54:20,213 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 559) no Hoare annotation was computed. [2022-11-22 01:54:20,213 INFO L899 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2022-11-22 01:54:20,213 INFO L899 garLoopResultBuilder]: For program point L558-1(line 558) no Hoare annotation was computed. [2022-11-22 01:54:20,213 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 558) no Hoare annotation was computed. [2022-11-22 01:54:20,214 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 559) no Hoare annotation was computed. [2022-11-22 01:54:20,214 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:54:20,214 INFO L899 garLoopResultBuilder]: For program point L559(line 559) no Hoare annotation was computed. [2022-11-22 01:54:20,214 INFO L899 garLoopResultBuilder]: For program point L559-1(line 559) no Hoare annotation was computed. [2022-11-22 01:54:20,214 INFO L899 garLoopResultBuilder]: For program point L557-3(lines 557 560) no Hoare annotation was computed. [2022-11-22 01:54:20,215 INFO L895 garLoopResultBuilder]: At program point L557-5(lines 557 560) the Hoare annotation is: (and (not (= |ULTIMATE.start_test_fun_~y_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (< (select (select |#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|) |ULTIMATE.start_test_fun_~x_ref~0#1.offset|) 2147483649) (<= (select (select |#memory_int| |ULTIMATE.start_test_fun_~y_ref~0#1.base|) |ULTIMATE.start_test_fun_~y_ref~0#1.offset|) 2147483647) (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_test_fun_~z_ref~0#1.base|) |ULTIMATE.start_test_fun_~z_ref~0#1.offset|) 2147483648))) [2022-11-22 01:54:20,215 INFO L902 garLoopResultBuilder]: At program point L557-6(lines 557 560) the Hoare annotation is: true [2022-11-22 01:54:20,218 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-22 01:54:20,221 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:54:20,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:54:20 BoogieIcfgContainer [2022-11-22 01:54:20,236 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:54:20,236 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:54:20,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:54:20,237 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:54:20,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:54:14" (3/4) ... [2022-11-22 01:54:20,241 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:54:20,251 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-22 01:54:20,251 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-22 01:54:20,252 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 01:54:20,252 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:54:20,285 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:54:20,285 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:54:20,286 INFO L158 Benchmark]: Toolchain (without parser) took 6476.81ms. Allocated memory was 176.2MB in the beginning and 274.7MB in the end (delta: 98.6MB). Free memory was 129.4MB in the beginning and 108.8MB in the end (delta: 20.7MB). Peak memory consumption was 120.8MB. Max. memory is 16.1GB. [2022-11-22 01:54:20,286 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory was 69.3MB in the beginning and 69.2MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:54:20,287 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.83ms. Allocated memory is still 176.2MB. Free memory was 129.4MB in the beginning and 113.7MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 01:54:20,287 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.07ms. Allocated memory is still 176.2MB. Free memory was 113.7MB in the beginning and 112.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:54:20,287 INFO L158 Benchmark]: Boogie Preprocessor took 43.58ms. Allocated memory is still 176.2MB. Free memory was 112.2MB in the beginning and 110.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:54:20,288 INFO L158 Benchmark]: RCFGBuilder took 520.51ms. Allocated memory is still 176.2MB. Free memory was 110.6MB in the beginning and 142.2MB in the end (delta: -31.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-11-22 01:54:20,288 INFO L158 Benchmark]: TraceAbstraction took 5405.24ms. Allocated memory was 176.2MB in the beginning and 274.7MB in the end (delta: 98.6MB). Free memory was 141.2MB in the beginning and 110.9MB in the end (delta: 30.3MB). Peak memory consumption was 129.9MB. Max. memory is 16.1GB. [2022-11-22 01:54:20,289 INFO L158 Benchmark]: Witness Printer took 48.81ms. Allocated memory is still 274.7MB. Free memory was 110.9MB in the beginning and 108.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:54:20,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory was 69.3MB in the beginning and 69.2MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 410.83ms. Allocated memory is still 176.2MB. Free memory was 129.4MB in the beginning and 113.7MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.07ms. Allocated memory is still 176.2MB. Free memory was 113.7MB in the beginning and 112.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.58ms. Allocated memory is still 176.2MB. Free memory was 112.2MB in the beginning and 110.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 520.51ms. Allocated memory is still 176.2MB. Free memory was 110.6MB in the beginning and 142.2MB in the end (delta: -31.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5405.24ms. Allocated memory was 176.2MB in the beginning and 274.7MB in the end (delta: 98.6MB). Free memory was 141.2MB in the beginning and 110.9MB in the end (delta: 30.3MB). Peak memory consumption was 129.9MB. Max. memory is 16.1GB. * Witness Printer took 48.81ms. Allocated memory is still 274.7MB. Free memory was 110.9MB in the beginning and 108.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 558]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 558]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 13 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=1, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 29 HoareAnnotationTreeSize, 2 FomulaSimplifications, 7 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 45 ConstructedInterpolants, 1 QuantifiedInterpolants, 369 SizeOfPredicates, 9 NumberOfNonLiveVariables, 176 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 3/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: ((!(y_ref == x_ref) && unknown-#memory_int-unknown[x_ref][x_ref] < 2147483649) && unknown-#memory_int-unknown[y_ref][y_ref] <= 2147483647) && 0 <= unknown-#memory_int-unknown[z_ref][z_ref] + 2147483648 - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-22 01:54:20,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c7efc0-004c-4290-97a6-beb1dc932b9d/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE