./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.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_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/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_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/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_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/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 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac --- 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 00:20:22,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:20:22,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:20:22,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:20:22,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:20:22,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:20:22,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:20:22,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:20:22,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:20:22,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:20:22,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:20:22,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:20:22,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:20:22,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:20:22,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:20:22,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:20:22,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:20:22,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:20:22,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:20:22,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:20:22,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:20:22,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:20:22,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:20:22,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:20:22,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:20:22,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:20:22,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:20:22,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:20:22,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:20:22,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:20:22,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:20:22,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:20:22,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:20:22,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:20:22,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:20:22,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:20:22,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:20:22,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:20:22,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:20:22,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:20:22,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:20:22,651 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 00:20:22,674 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:20:22,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:20:22,674 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:20:22,675 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:20:22,675 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:20:22,676 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:20:22,676 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:20:22,676 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:20:22,676 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:20:22,676 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:20:22,677 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:20:22,677 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:20:22,677 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:20:22,677 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:20:22,677 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:20:22,678 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:20:22,678 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:20:22,678 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:20:22,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:20:22,679 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:20:22,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:20:22,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:20:22,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:20:22,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:20:22,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:20:22,680 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 00:20:22,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:20:22,680 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:20:22,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:20:22,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:20:22,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:20:22,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:20:22,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:20:22,682 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:20:22,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:20:22,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:20:22,682 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:20:22,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:20:22,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:20:22,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:20:22,683 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_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac [2022-11-22 00:20:22,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:20:22,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:20:22,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:20:22,931 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:20:22,932 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:20:22,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2022-11-22 00:20:25,830 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:20:26,087 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:20:26,088 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2022-11-22 00:20:26,093 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/data/2d1175d2c/93924682567e4ebf8affc17bf8de8949/FLAG206275312 [2022-11-22 00:20:26,111 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/data/2d1175d2c/93924682567e4ebf8affc17bf8de8949 [2022-11-22 00:20:26,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:20:26,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:20:26,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:20:26,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:20:26,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:20:26,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:20:26" (1/1) ... [2022-11-22 00:20:26,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e05074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:26, skipping insertion in model container [2022-11-22 00:20:26,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:20:26" (1/1) ... [2022-11-22 00:20:26,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:20:26,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:20:26,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:20:26,334 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:20:26,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:20:26,369 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:20:26,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:26 WrapperNode [2022-11-22 00:20:26,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:20:26,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:20:26,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:20:26,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:20:26,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:26" (1/1) ... [2022-11-22 00:20:26,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:26" (1/1) ... [2022-11-22 00:20:26,401 INFO L138 Inliner]: procedures = 11, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-11-22 00:20:26,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:20:26,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:20:26,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:20:26,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:20:26,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:26" (1/1) ... [2022-11-22 00:20:26,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:26" (1/1) ... [2022-11-22 00:20:26,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:26" (1/1) ... [2022-11-22 00:20:26,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:26" (1/1) ... [2022-11-22 00:20:26,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:26" (1/1) ... [2022-11-22 00:20:26,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:26" (1/1) ... [2022-11-22 00:20:26,420 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:26" (1/1) ... [2022-11-22 00:20:26,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:26" (1/1) ... [2022-11-22 00:20:26,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:20:26,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:20:26,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:20:26,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:20:26,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:26" (1/1) ... [2022-11-22 00:20:26,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:20:26,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:20:26,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:20:26,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:20:26,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:20:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:20:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2022-11-22 00:20:26,499 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2022-11-22 00:20:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:20:26,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:20:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:20:26,567 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:20:26,570 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:20:26,699 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:20:26,714 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:20:26,714 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 00:20:26,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:20:26 BoogieIcfgContainer [2022-11-22 00:20:26,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:20:26,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:20:26,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:20:26,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:20:26,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:20:26" (1/3) ... [2022-11-22 00:20:26,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72562872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:20:26, skipping insertion in model container [2022-11-22 00:20:26,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:20:26" (2/3) ... [2022-11-22 00:20:26,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72562872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:20:26, skipping insertion in model container [2022-11-22 00:20:26,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:20:26" (3/3) ... [2022-11-22 00:20:26,727 INFO L112 eAbstractionObserver]: Analyzing ICFG chunk1-2.i [2022-11-22 00:20:26,745 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:20:26,745 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 00:20:26,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:20:26,800 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;@132ddbd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:20:26,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-22 00:20:26,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.5) internal successors, (12), 12 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 00:20:26,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 00:20:26,811 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:26,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 00:20:26,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 00:20:26,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:26,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1677859040, now seen corresponding path program 1 times [2022-11-22 00:20:26,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:26,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285331238] [2022-11-22 00:20:26,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:26,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:27,371 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 00:20:27,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:27,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285331238] [2022-11-22 00:20:27,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285331238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:27,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:27,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:20:27,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026858981] [2022-11-22 00:20:27,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:27,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 00:20:27,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:27,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 00:20:27,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 00:20:27,448 INFO L87 Difference]: Start difference. First operand has 14 states, 8 states have (on average 1.5) internal successors, (12), 12 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) Second operand has 7 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:27,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:27,654 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-11-22 00:20:27,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 00:20:27,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 00:20:27,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:27,666 INFO L225 Difference]: With dead ends: 24 [2022-11-22 00:20:27,666 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 00:20:27,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-22 00:20:27,677 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:27,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 24 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:20:27,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 00:20:27,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2022-11-22 00:20:27,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:27,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-11-22 00:20:27,718 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2022-11-22 00:20:27,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:27,719 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-11-22 00:20:27,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:27,719 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-11-22 00:20:27,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 00:20:27,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:27,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:20:27,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:20:27,721 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 00:20:27,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:27,722 INFO L85 PathProgramCache]: Analyzing trace with hash 474022726, now seen corresponding path program 1 times [2022-11-22 00:20:27,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:27,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156203652] [2022-11-22 00:20:27,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:27,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:27,912 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 00:20:27,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:27,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156203652] [2022-11-22 00:20:27,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156203652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:27,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:27,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:20:27,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876228154] [2022-11-22 00:20:27,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:27,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 00:20:27,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:27,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 00:20:27,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 00:20:27,917 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:27,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:27,996 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-22 00:20:27,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 00:20:27,997 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 00:20:27,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:27,999 INFO L225 Difference]: With dead ends: 16 [2022-11-22 00:20:27,999 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 00:20:28,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-22 00:20:28,001 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:28,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:20:28,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 00:20:28,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-11-22 00:20:28,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:28,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-22 00:20:28,012 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2022-11-22 00:20:28,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:28,013 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-22 00:20:28,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:28,013 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-22 00:20:28,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 00:20:28,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:28,014 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:20:28,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:20:28,015 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 00:20:28,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:28,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1106934993, now seen corresponding path program 1 times [2022-11-22 00:20:28,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:28,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531504895] [2022-11-22 00:20:28,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:28,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:20:28,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:28,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531504895] [2022-11-22 00:20:28,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531504895] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:20:28,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467971481] [2022-11-22 00:20:28,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:28,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:20:28,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:20:28,446 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:20:28,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:20:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:28,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-22 00:20:28,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:20:28,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:20:28,644 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 16 treesize of output 17 [2022-11-22 00:20:28,727 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 19 treesize of output 18 [2022-11-22 00:20:28,814 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:20:28,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 28 treesize of output 12 [2022-11-22 00:20:28,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:20:28,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:20:28,984 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 00:20:28,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467971481] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:20:28,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2070026018] [2022-11-22 00:20:29,016 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-22 00:20:29,017 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:20:29,021 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-22 00:20:29,027 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:20:29,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 8] total 14 [2022-11-22 00:20:29,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922167086] [2022-11-22 00:20:29,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:20:29,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 00:20:29,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:29,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 00:20:29,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-11-22 00:20:29,032 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 16 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:29,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:29,220 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-22 00:20:29,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 00:20:29,221 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-22 00:20:29,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:29,223 INFO L225 Difference]: With dead ends: 14 [2022-11-22 00:20:29,223 INFO L226 Difference]: Without dead ends: 13 [2022-11-22 00:20:29,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2022-11-22 00:20:29,228 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:29,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:20:29,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-22 00:20:29,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-22 00:20:29,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:29,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-11-22 00:20:29,239 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2022-11-22 00:20:29,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:29,240 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-11-22 00:20:29,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:29,241 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-11-22 00:20:29,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 00:20:29,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:20:29,244 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-22 00:20:29,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 00:20:29,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:20:29,466 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 00:20:29,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:20:29,466 INFO L85 PathProgramCache]: Analyzing trace with hash -44753547, now seen corresponding path program 1 times [2022-11-22 00:20:29,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:20:29,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215095776] [2022-11-22 00:20:29,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:20:29,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:20:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:20:29,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:20:29,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:20:29,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215095776] [2022-11-22 00:20:29,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215095776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:20:29,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:20:29,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 00:20:29,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096409532] [2022-11-22 00:20:29,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:20:29,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 00:20:29,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:20:29,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 00:20:29,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-22 00:20:29,728 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 11 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:29,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:20:29,888 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-22 00:20:29,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 00:20:29,889 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-22 00:20:29,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:20:29,890 INFO L225 Difference]: With dead ends: 14 [2022-11-22 00:20:29,890 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 00:20:29,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-11-22 00:20:29,892 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:20:29,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:20:29,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 00:20:29,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 00:20:29,897 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 00:20:29,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 00:20:29,897 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-11-22 00:20:29,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:20:29,898 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 00:20:29,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:20:29,898 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 00:20:29,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 00:20:29,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-22 00:20:29,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-22 00:20:29,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:20:29,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 00:20:30,088 INFO L899 garLoopResultBuilder]: For program point chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-11-22 00:20:30,089 INFO L895 garLoopResultBuilder]: At program point L15(line 15) the Hoare annotation is: (let ((.cse6 (select |old(#memory_int)| |chunk_#in~data.base|)) (.cse0 (select |#memory_int| |chunk_#in~data.base|))) (let ((.cse2 (select .cse0 |chunk_#in~data.offset|)) (.cse3 (not (= |chunk_#in~data.offset| 0))) (.cse4 (select .cse6 |chunk_#in~data.offset|)) (.cse5 (not (<= (select .cse6 12) 2147483647)))) (and (or (let ((.cse1 (select |#memory_int| chunk_~data.base))) (and (= chunk_~data.offset 0) (<= (select .cse0 12) 2147483647) (<= 0 (+ 2147483647 (select .cse1 chunk_~data.offset))) (<= (select .cse1 12) 2147483647) (<= 0 (+ .cse2 2147483648)))) .cse3 (not (<= 0 (+ .cse4 2147483648))) .cse5) (or (<= 0 (+ 2147483647 .cse2)) .cse3 (not (<= 0 (+ 2147483647 .cse4))) .cse5)))) [2022-11-22 00:20:30,089 INFO L899 garLoopResultBuilder]: For program point chunkEXIT(lines 8 16) no Hoare annotation was computed. [2022-11-22 00:20:30,089 INFO L899 garLoopResultBuilder]: For program point chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-11-22 00:20:30,089 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2022-11-22 00:20:30,089 INFO L899 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2022-11-22 00:20:30,090 INFO L899 garLoopResultBuilder]: For program point chunkFINAL(lines 8 16) no Hoare annotation was computed. [2022-11-22 00:20:30,090 INFO L895 garLoopResultBuilder]: At program point chunkENTRY(lines 8 16) the Hoare annotation is: (let ((.cse5 (select |old(#memory_int)| |chunk_#in~data.base|)) (.cse6 (select |#memory_int| |chunk_#in~data.base|))) (let ((.cse1 (select .cse6 |chunk_#in~data.offset|)) (.cse0 (<= (select .cse6 12) 2147483647)) (.cse2 (not (= |chunk_#in~data.offset| 0))) (.cse3 (select .cse5 |chunk_#in~data.offset|)) (.cse4 (not (<= (select .cse5 12) 2147483647)))) (and (or (and .cse0 (<= .cse1 2147483646) (<= 0 (+ .cse1 2147483648))) .cse2 (not (<= 0 (+ .cse3 2147483648))) (not (<= .cse3 2147483646)) .cse4) (or (and (<= 0 (+ 2147483647 .cse1)) .cse0) .cse2 (not (<= 0 (+ 2147483647 .cse3))) .cse4)))) [2022-11-22 00:20:30,090 INFO L899 garLoopResultBuilder]: For program point L9(lines 9 10) no Hoare annotation was computed. [2022-11-22 00:20:30,090 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 00:20:30,090 INFO L895 garLoopResultBuilder]: At program point L30(line 30) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |ULTIMATE.start_main_~data~0#1.base|))) (let ((.cse1 (select .cse0 |ULTIMATE.start_main_~data~0#1.offset|))) (and (<= (select .cse0 (+ 12 |ULTIMATE.start_main_~data~0#1.offset|)) 2147483647) (<= |ULTIMATE.start_main_~upper~0#1| 2147483647) (= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= 0 (+ .cse1 2147483648)) (<= .cse1 2147483646)))) [2022-11-22 00:20:30,090 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 00:20:30,091 INFO L895 garLoopResultBuilder]: At program point L30-1(lines 19 33) the Hoare annotation is: (<= |ULTIMATE.start_main_~upper~0#1| 2147483647) [2022-11-22 00:20:30,091 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 26) no Hoare annotation was computed. [2022-11-22 00:20:30,098 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-22 00:20:30,100 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:20:30,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:20:30 BoogieIcfgContainer [2022-11-22 00:20:30,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:20:30,121 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:20:30,122 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:20:30,122 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:20:30,122 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:20:26" (3/4) ... [2022-11-22 00:20:30,125 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 00:20:30,131 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure chunk [2022-11-22 00:20:30,135 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-22 00:20:30,135 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 00:20:30,135 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 00:20:30,135 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 00:20:30,171 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:20:30,172 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:20:30,172 INFO L158 Benchmark]: Toolchain (without parser) took 4057.55ms. Allocated memory is still 174.1MB. Free memory was 145.6MB in the beginning and 96.5MB in the end (delta: 49.1MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2022-11-22 00:20:30,173 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:20:30,173 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.07ms. Allocated memory is still 174.1MB. Free memory was 145.6MB in the beginning and 136.4MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 00:20:30,173 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.77ms. Allocated memory is still 174.1MB. Free memory was 136.4MB in the beginning and 135.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:20:30,174 INFO L158 Benchmark]: Boogie Preprocessor took 19.98ms. Allocated memory is still 174.1MB. Free memory was 135.1MB in the beginning and 133.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:20:30,174 INFO L158 Benchmark]: RCFGBuilder took 294.36ms. Allocated memory is still 174.1MB. Free memory was 133.7MB in the beginning and 122.5MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 00:20:30,174 INFO L158 Benchmark]: TraceAbstraction took 3400.86ms. Allocated memory is still 174.1MB. Free memory was 121.8MB in the beginning and 99.7MB in the end (delta: 22.1MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2022-11-22 00:20:30,175 INFO L158 Benchmark]: Witness Printer took 50.37ms. Allocated memory is still 174.1MB. Free memory was 98.6MB in the beginning and 96.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:20:30,176 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.07ms. Allocated memory is still 174.1MB. Free memory was 145.6MB in the beginning and 136.4MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.77ms. Allocated memory is still 174.1MB. Free memory was 136.4MB in the beginning and 135.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.98ms. Allocated memory is still 174.1MB. Free memory was 135.1MB in the beginning and 133.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.36ms. Allocated memory is still 174.1MB. Free memory was 133.7MB in the beginning and 122.5MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3400.86ms. Allocated memory is still 174.1MB. Free memory was 121.8MB in the beginning and 99.7MB in the end (delta: 22.1MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * Witness Printer took 50.37ms. Allocated memory is still 174.1MB. Free memory was 98.6MB in the beginning and 96.5MB 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: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 256 IncrementalHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 14 mSDtfsCounter, 256 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 36, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 228 HoareAnnotationTreeSize, 8 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 47 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 488 SizeOfPredicates, 11 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 7/13 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 2 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: upper <= 2147483647 RESULT: Ultimate proved your program to be correct! [2022-11-22 00:20:30,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbb8561-c8bd-4f9f-b7b0-7226d5f365aa/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