./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 232b8770d72be0c69bb3b6e33b82b59b612dcbb47eb932e66c113d1f5f5b981f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:08,388 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:08,489 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-23 21:09:08,497 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:08,498 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:08,554 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:08,555 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:08,556 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:08,557 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:08,558 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:08,558 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:08,559 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:08,560 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:08,561 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:09:08,561 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:08,562 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:08,563 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:09:08,563 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:09:08,564 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:08,565 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:09:08,565 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:09:08,566 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:09:08,567 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:08,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:08,568 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:09:08,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:09:08,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:09:08,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:08,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:08,583 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:08,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:08,584 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:09:08,585 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:09:08,585 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:09:08,586 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:08,586 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:08,587 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:08,587 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:08,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:08,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:08,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:08,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:08,590 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:08,590 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:09:08,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:09:08,591 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:08,591 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:08,592 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:08,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:08,592 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 232b8770d72be0c69bb3b6e33b82b59b612dcbb47eb932e66c113d1f5f5b981f [2023-11-23 21:09:08,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:08,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:08,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:08,972 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:08,988 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:08,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-2.i [2023-11-23 21:09:12,630 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:12,922 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:12,923 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-2.i [2023-11-23 21:09:12,957 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/data/4a11f880a/db8adc573602483b8547a75328c380c1/FLAG3d5bafecc [2023-11-23 21:09:12,974 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/data/4a11f880a/db8adc573602483b8547a75328c380c1 [2023-11-23 21:09:12,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:12,999 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:13,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:13,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:13,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:13,014 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:12" (1/1) ... [2023-11-23 21:09:13,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b435bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:13, skipping insertion in model container [2023-11-23 21:09:13,016 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:12" (1/1) ... [2023-11-23 21:09:13,068 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:13,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:13,537 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:13,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:13,649 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:13,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:13 WrapperNode [2023-11-23 21:09:13,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:13,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:13,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:13,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:13,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:13" (1/1) ... [2023-11-23 21:09:13,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:13" (1/1) ... [2023-11-23 21:09:13,718 INFO L138 Inliner]: procedures = 126, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2023-11-23 21:09:13,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:13,720 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:13,720 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:13,721 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:13,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:13" (1/1) ... [2023-11-23 21:09:13,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:13" (1/1) ... [2023-11-23 21:09:13,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:13" (1/1) ... [2023-11-23 21:09:13,740 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:13" (1/1) ... [2023-11-23 21:09:13,760 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:13" (1/1) ... [2023-11-23 21:09:13,775 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:13" (1/1) ... [2023-11-23 21:09:13,779 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:13" (1/1) ... [2023-11-23 21:09:13,791 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:13" (1/1) ... [2023-11-23 21:09:13,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:13,800 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:13,800 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:13,801 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:13,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:13" (1/1) ... [2023-11-23 21:09:13,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:13,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:13,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:13,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:13,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:09:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:09:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:09:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure create_data [2023-11-23 21:09:13,905 INFO L138 BoogieDeclarations]: Found implementation of procedure create_data [2023-11-23 21:09:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:09:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:09:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:09:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:09:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:09:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:09:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:13,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:14,052 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:14,056 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:14,589 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:14,706 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:14,706 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-23 21:09:14,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:14 BoogieIcfgContainer [2023-11-23 21:09:14,709 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:14,712 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:14,712 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:14,716 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:14,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:12" (1/3) ... [2023-11-23 21:09:14,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf51aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:14, skipping insertion in model container [2023-11-23 21:09:14,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:13" (2/3) ... [2023-11-23 21:09:14,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf51aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:14, skipping insertion in model container [2023-11-23 21:09:14,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:14" (3/3) ... [2023-11-23 21:09:14,720 INFO L112 eAbstractionObserver]: Analyzing ICFG complex_data_creation_test01-2.i [2023-11-23 21:09:14,742 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:14,742 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-23 21:09:14,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:14,819 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=LoopHeads, 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;@506c3d9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:14,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-23 21:09:14,825 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 25 states have (on average 1.64) internal successors, (41), 31 states have internal predecessors, (41), 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) [2023-11-23 21:09:14,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 21:09:14,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:14,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:14,837 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:09:14,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:14,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1418020291, now seen corresponding path program 1 times [2023-11-23 21:09:14,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:14,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139208142] [2023-11-23 21:09:14,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:14,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:15,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:15,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139208142] [2023-11-23 21:09:15,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139208142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:15,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:15,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:15,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790530486] [2023-11-23 21:09:15,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:15,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:09:15,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:15,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:09:15,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:09:15,435 INFO L87 Difference]: Start difference. First operand has 35 states, 25 states have (on average 1.64) internal successors, (41), 31 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-23 21:09:15,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:15,596 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2023-11-23 21:09:15,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:09:15,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 8 [2023-11-23 21:09:15,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:15,612 INFO L225 Difference]: With dead ends: 72 [2023-11-23 21:09:15,613 INFO L226 Difference]: Without dead ends: 34 [2023-11-23 21:09:15,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:09:15,626 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 3 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:15,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 94 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:09:15,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-23 21:09:15,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-23 21:09:15,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.44) internal successors, (36), 30 states have internal predecessors, (36), 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) [2023-11-23 21:09:15,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2023-11-23 21:09:15,674 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 8 [2023-11-23 21:09:15,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:15,675 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2023-11-23 21:09:15,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-23 21:09:15,676 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2023-11-23 21:09:15,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 21:09:15,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:15,678 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:15,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:09:15,679 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:09:15,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:15,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1055891398, now seen corresponding path program 1 times [2023-11-23 21:09:15,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:15,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536758809] [2023-11-23 21:09:15,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:15,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:15,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:15,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:15,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536758809] [2023-11-23 21:09:15,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536758809] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:09:15,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069906762] [2023-11-23 21:09:15,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:15,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:15,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:15,954 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:16,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:09:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:16,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:09:16,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:16,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:16,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:16,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069906762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:16,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:09:16,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-23 21:09:16,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076487690] [2023-11-23 21:09:16,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:16,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:09:16,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:16,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:09:16,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:09:16,287 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2023-11-23 21:09:16,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:16,396 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2023-11-23 21:09:16,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:09:16,397 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), 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 11 [2023-11-23 21:09:16,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:16,401 INFO L225 Difference]: With dead ends: 36 [2023-11-23 21:09:16,402 INFO L226 Difference]: Without dead ends: 35 [2023-11-23 21:09:16,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:09:16,405 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 24 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:16,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 118 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:09:16,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-23 21:09:16,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2023-11-23 21:09:16,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.4) internal successors, (35), 29 states have internal predecessors, (35), 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) [2023-11-23 21:09:16,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2023-11-23 21:09:16,428 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 11 [2023-11-23 21:09:16,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:16,430 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2023-11-23 21:09:16,430 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), 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) [2023-11-23 21:09:16,431 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2023-11-23 21:09:16,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 21:09:16,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:16,433 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:16,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:16,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:16,647 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:09:16,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:16,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1627104976, now seen corresponding path program 1 times [2023-11-23 21:09:16,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:16,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821938712] [2023-11-23 21:09:16,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:16,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:16,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 21:09:16,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:16,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821938712] [2023-11-23 21:09:16,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821938712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:16,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:16,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:09:16,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480949494] [2023-11-23 21:09:16,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:16,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:16,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:16,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:16,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:16,819 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-23 21:09:16,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:16,852 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2023-11-23 21:09:16,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:16,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 12 [2023-11-23 21:09:16,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:16,854 INFO L225 Difference]: With dead ends: 33 [2023-11-23 21:09:16,854 INFO L226 Difference]: Without dead ends: 32 [2023-11-23 21:09:16,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:16,856 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:16,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:09:16,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-23 21:09:16,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2023-11-23 21:09:16,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.391304347826087) internal successors, (32), 26 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:09:16,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2023-11-23 21:09:16,871 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 12 [2023-11-23 21:09:16,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:16,872 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2023-11-23 21:09:16,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-23 21:09:16,872 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2023-11-23 21:09:16,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 21:09:16,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:16,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:16,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:09:16,875 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:09:16,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:16,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1100074966, now seen corresponding path program 1 times [2023-11-23 21:09:16,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:16,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401489029] [2023-11-23 21:09:16,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:16,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:16,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:16,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:16,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401489029] [2023-11-23 21:09:16,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401489029] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:09:16,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093243538] [2023-11-23 21:09:16,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:16,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:16,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:16,998 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:17,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:09:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:17,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:09:17,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:17,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:17,175 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:09:17,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:17,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093243538] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:09:17,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [705084266] [2023-11-23 21:09:17,240 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2023-11-23 21:09:17,240 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:09:17,244 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:09:17,250 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:09:17,251 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:09:17,483 INFO L197 IcfgInterpreter]: Interpreting procedure create_data with input of size 97 for LOIs [2023-11-23 21:09:18,971 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:09:26,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [705084266] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:26,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:09:26,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5, 5, 5] total 21 [2023-11-23 21:09:26,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611261108] [2023-11-23 21:09:26,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:26,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 21:09:26,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:26,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 21:09:26,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=353, Unknown=3, NotChecked=0, Total=420 [2023-11-23 21:09:26,324 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 13 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2023-11-23 21:09:28,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:09:32,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:32,038 INFO L93 Difference]: Finished difference Result 96 states and 118 transitions. [2023-11-23 21:09:32,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 21:09:32,040 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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 13 [2023-11-23 21:09:32,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:32,042 INFO L225 Difference]: With dead ends: 96 [2023-11-23 21:09:32,042 INFO L226 Difference]: Without dead ends: 67 [2023-11-23 21:09:32,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=64, Invalid=353, Unknown=3, NotChecked=0, Total=420 [2023-11-23 21:09:32,044 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 38 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:32,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 98 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 190 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2023-11-23 21:09:32,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-23 21:09:32,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 54. [2023-11-23 21:09:32,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 45 states have (on average 1.3777777777777778) internal successors, (62), 49 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:09:32,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2023-11-23 21:09:32,057 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 13 [2023-11-23 21:09:32,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:32,057 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2023-11-23 21:09:32,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2023-11-23 21:09:32,058 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2023-11-23 21:09:32,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 21:09:32,058 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:32,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:32,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:32,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:32,284 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting create_dataErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:09:32,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:32,285 INFO L85 PathProgramCache]: Analyzing trace with hash 610036640, now seen corresponding path program 1 times [2023-11-23 21:09:32,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:32,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025804419] [2023-11-23 21:09:32,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:32,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:32,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:32,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:32,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025804419] [2023-11-23 21:09:32,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025804419] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:09:32,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408645717] [2023-11-23 21:09:32,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:32,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:32,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:32,443 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:32,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:09:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:32,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:09:32,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:32,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:32,596 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:09:32,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:32,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408645717] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:09:32,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [822542004] [2023-11-23 21:09:32,637 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-11-23 21:09:32,637 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:09:32,637 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:09:32,638 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:09:32,638 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:09:32,765 INFO L197 IcfgInterpreter]: Interpreting procedure create_data with input of size 97 for LOIs [2023-11-23 21:09:35,968 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:09:44,106 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '749#(and (exists ((|v_create_data_#t~nondet20_7| Int)) (and (not (= |v_create_data_#t~nondet20_7| 0)) (<= |v_create_data_#t~nondet20_7| 2147483647) (<= 0 (+ |v_create_data_#t~nondet20_7| 2147483648)))) (= create_data_~data~0.offset 0) (exists ((|v_#memory_$Pointer$.offset_93| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_93| create_data_~nextData~0.base (store (select |v_#memory_$Pointer$.offset_93| create_data_~nextData~0.base) 4 0)))) (exists ((|v_#memory_int_96| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_96| create_data_~nextData~0.base (store (select |v_#memory_int_96| create_data_~nextData~0.base) 4 (select (select |#memory_int| create_data_~nextData~0.base) 4))))) (<= 1 |#StackHeapBarrier|) (= create_data_~prevData.base 0) (= |create_data_#t~mem22| (select (select |#memory_int| create_data_~data~0.base) 0)) (= |create_data_#in~prevData.offset| 0) (<= 20 create_data_~counter~0) (= create_data_~nextData~0.offset 0) (= |create_data_#in~prevData.base| 0) (exists ((|v_#length_28| (Array Int Int))) (= |#length| (store |v_#length_28| create_data_~nextData~0.base 16))) (exists ((|v_#valid_49| (Array Int Int))) (and (= |#valid| (store |v_#valid_49| create_data_~nextData~0.base 1)) (= (select |v_#valid_49| create_data_~nextData~0.base) 0))) (<= (+ create_data_~nextData~0.base 1) |#StackHeapBarrier|) (<= create_data_~userInput~0 2147483647) (<= (+ 2147483449 |create_data_#t~mem22|) 0) (not (= create_data_~nextData~0.base 0)) (<= 0 (+ create_data_~userInput~0 2147483648)) (= create_data_~prevData.offset 0) (exists ((|v_#memory_$Pointer$.base_93| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_93| create_data_~nextData~0.base (store (select |v_#memory_$Pointer$.base_93| create_data_~nextData~0.base) 4 0)))))' at error location [2023-11-23 21:09:44,106 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-23 21:09:44,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:09:44,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-23 21:09:44,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859646689] [2023-11-23 21:09:44,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:09:44,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 21:09:44,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:44,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 21:09:44,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=469, Unknown=5, NotChecked=0, Total=552 [2023-11-23 21:09:44,109 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 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) [2023-11-23 21:09:44,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:44,232 INFO L93 Difference]: Finished difference Result 110 states and 143 transitions. [2023-11-23 21:09:44,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:09:44,241 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 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 15 [2023-11-23 21:09:44,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:44,245 INFO L225 Difference]: With dead ends: 110 [2023-11-23 21:09:44,245 INFO L226 Difference]: Without dead ends: 66 [2023-11-23 21:09:44,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=95, Invalid=550, Unknown=5, NotChecked=0, Total=650 [2023-11-23 21:09:44,249 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:44,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 187 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:09:44,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-23 21:09:44,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-23 21:09:44,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 61 states have internal predecessors, (74), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:09:44,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 80 transitions. [2023-11-23 21:09:44,260 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 80 transitions. Word has length 15 [2023-11-23 21:09:44,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:44,260 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 80 transitions. [2023-11-23 21:09:44,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 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) [2023-11-23 21:09:44,261 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 80 transitions. [2023-11-23 21:09:44,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 21:09:44,261 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:44,262 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:44,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:44,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:44,464 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting create_dataErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:09:44,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:44,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1614071744, now seen corresponding path program 2 times [2023-11-23 21:09:44,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:44,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151366985] [2023-11-23 21:09:44,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:44,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:44,671 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:44,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:44,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151366985] [2023-11-23 21:09:44,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151366985] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:09:44,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099130880] [2023-11-23 21:09:44,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 21:09:44,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:44,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:44,673 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:44,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:09:44,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-23 21:09:44,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:09:44,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 21:09:44,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:44,864 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-11-23 21:09:44,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2023-11-23 21:09:44,955 INFO L378 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 [2023-11-23 21:09:45,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:09:45,031 INFO L378 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 [2023-11-23 21:09:45,051 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:09:45,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:45,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099130880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:45,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:09:45,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-11-23 21:09:45,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361784664] [2023-11-23 21:09:45,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:45,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:09:45,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:45,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:09:45,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:09:45,054 INFO L87 Difference]: Start difference. First operand 66 states and 80 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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) [2023-11-23 21:09:45,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:45,259 INFO L93 Difference]: Finished difference Result 90 states and 111 transitions. [2023-11-23 21:09:45,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:09:45,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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 21 [2023-11-23 21:09:45,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:45,261 INFO L225 Difference]: With dead ends: 90 [2023-11-23 21:09:45,261 INFO L226 Difference]: Without dead ends: 89 [2023-11-23 21:09:45,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:09:45,262 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 34 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:45,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 68 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:09:45,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-23 21:09:45,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 74. [2023-11-23 21:09:45,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 69 states have internal predecessors, (85), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:09:45,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2023-11-23 21:09:45,277 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 21 [2023-11-23 21:09:45,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:45,278 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2023-11-23 21:09:45,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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) [2023-11-23 21:09:45,278 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2023-11-23 21:09:45,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 21:09:45,279 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:45,279 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:45,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:45,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:45,488 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting create_dataErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:09:45,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:45,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1503383584, now seen corresponding path program 1 times [2023-11-23 21:09:45,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:45,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030807648] [2023-11-23 21:09:45,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:45,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:45,705 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:45,705 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:45,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030807648] [2023-11-23 21:09:45,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030807648] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:09:45,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315609025] [2023-11-23 21:09:45,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:45,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:45,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:45,708 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:45,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 21:09:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:45,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:09:45,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:45,907 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:45,907 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:09:46,034 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:46,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315609025] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:09:46,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2096810328] [2023-11-23 21:09:46,036 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2023-11-23 21:09:46,036 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:09:46,037 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:09:46,037 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:09:46,037 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:09:46,136 INFO L197 IcfgInterpreter]: Interpreting procedure create_data with input of size 97 for LOIs [2023-11-23 21:09:47,027 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:09:54,516 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1410#(and (= create_data_~data~0.offset 0) (<= 1 |#StackHeapBarrier|) (exists ((|v_#memory_$Pointer$.base_107| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_107| create_data_~nextData~0.base (store (select |v_#memory_$Pointer$.base_107| create_data_~nextData~0.base) 4 0)))) (= create_data_~prevData.base 0) (= |create_data_#t~mem22| (select (select |#memory_int| create_data_~data~0.base) 0)) (= |create_data_#in~prevData.offset| 0) (exists ((|v_#memory_$Pointer$.offset_107| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_107| create_data_~nextData~0.base (store (select |v_#memory_$Pointer$.offset_107| create_data_~nextData~0.base) 4 0)))) (exists ((|v_#memory_int_112| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_112| create_data_~nextData~0.base (store (select |v_#memory_int_112| create_data_~nextData~0.base) 4 (select (select |#memory_int| create_data_~nextData~0.base) 4))))) (<= 20 create_data_~counter~0) (= create_data_~nextData~0.offset 0) (= |create_data_#in~prevData.base| 0) (<= (+ create_data_~nextData~0.base 1) |#StackHeapBarrier|) (<= create_data_~userInput~0 2147483647) (<= 2147483848 |create_data_#t~mem22|) (exists ((|v_#valid_57| (Array Int Int))) (and (= (store |v_#valid_57| create_data_~nextData~0.base 1) |#valid|) (= (select |v_#valid_57| create_data_~nextData~0.base) 0))) (exists ((|v_create_data_#t~nondet20_9| Int)) (and (<= 0 (+ |v_create_data_#t~nondet20_9| 2147483648)) (<= |v_create_data_#t~nondet20_9| 2147483647) (not (= |v_create_data_#t~nondet20_9| 0)))) (exists ((|v_#length_34| (Array Int Int))) (= (store |v_#length_34| create_data_~nextData~0.base 16) |#length|)) (not (= create_data_~nextData~0.base 0)) (<= 0 (+ create_data_~userInput~0 2147483648)) (= create_data_~prevData.offset 0))' at error location [2023-11-23 21:09:54,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-23 21:09:54,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:09:54,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-23 21:09:54,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683780383] [2023-11-23 21:09:54,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:09:54,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-23 21:09:54,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:54,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-23 21:09:54,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=907, Unknown=5, NotChecked=0, Total=1056 [2023-11-23 21:09:54,518 INFO L87 Difference]: Start difference. First operand 74 states and 91 transitions. Second operand has 18 states, 18 states have (on average 2.0) internal successors, (36), 18 states have internal predecessors, (36), 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) [2023-11-23 21:09:54,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:54,795 INFO L93 Difference]: Finished difference Result 156 states and 199 transitions. [2023-11-23 21:09:54,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 21:09:54,796 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.0) internal successors, (36), 18 states have internal predecessors, (36), 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 22 [2023-11-23 21:09:54,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:54,797 INFO L225 Difference]: With dead ends: 156 [2023-11-23 21:09:54,797 INFO L226 Difference]: Without dead ends: 98 [2023-11-23 21:09:54,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=225, Invalid=1252, Unknown=5, NotChecked=0, Total=1482 [2023-11-23 21:09:54,799 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 28 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:54,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 215 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:09:54,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-23 21:09:54,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-11-23 21:09:54,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 89 states have (on average 1.2247191011235956) internal successors, (109), 93 states have internal predecessors, (109), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:09:54,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 115 transitions. [2023-11-23 21:09:54,814 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 115 transitions. Word has length 22 [2023-11-23 21:09:54,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:54,815 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 115 transitions. [2023-11-23 21:09:54,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0) internal successors, (36), 18 states have internal predecessors, (36), 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) [2023-11-23 21:09:54,815 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 115 transitions. [2023-11-23 21:09:54,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 21:09:54,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:54,817 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:54,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:55,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-23 21:09:55,024 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting create_dataErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:09:55,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:55,025 INFO L85 PathProgramCache]: Analyzing trace with hash 294012640, now seen corresponding path program 2 times [2023-11-23 21:09:55,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:55,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181555305] [2023-11-23 21:09:55,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:55,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:55,481 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:55,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:55,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181555305] [2023-11-23 21:09:55,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181555305] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:09:55,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832711829] [2023-11-23 21:09:55,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 21:09:55,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:55,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:55,485 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:55,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 21:09:55,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-23 21:09:55,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:09:55,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 21:09:55,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:55,657 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-11-23 21:09:55,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2023-11-23 21:09:55,824 INFO L378 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 [2023-11-23 21:09:55,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:09:55,899 INFO L378 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 [2023-11-23 21:09:55,926 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-23 21:09:55,926 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:55,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832711829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:55,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:09:55,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 20 [2023-11-23 21:09:55,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369839503] [2023-11-23 21:09:55,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:55,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:09:55,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:55,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:09:55,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2023-11-23 21:09:55,929 INFO L87 Difference]: Start difference. First operand 98 states and 115 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-23 21:09:56,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:56,198 INFO L93 Difference]: Finished difference Result 113 states and 133 transitions. [2023-11-23 21:09:56,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:09:56,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 34 [2023-11-23 21:09:56,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:56,200 INFO L225 Difference]: With dead ends: 113 [2023-11-23 21:09:56,200 INFO L226 Difference]: Without dead ends: 112 [2023-11-23 21:09:56,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2023-11-23 21:09:56,202 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 30 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:56,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 69 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:09:56,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-23 21:09:56,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 100. [2023-11-23 21:09:56,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 91 states have (on average 1.2197802197802199) internal successors, (111), 95 states have internal predecessors, (111), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:09:56,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 117 transitions. [2023-11-23 21:09:56,219 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 117 transitions. Word has length 34 [2023-11-23 21:09:56,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:56,219 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 117 transitions. [2023-11-23 21:09:56,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-23 21:09:56,220 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 117 transitions. [2023-11-23 21:09:56,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 21:09:56,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:56,221 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:56,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:56,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:56,428 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:09:56,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:56,429 INFO L85 PathProgramCache]: Analyzing trace with hash 576050073, now seen corresponding path program 1 times [2023-11-23 21:09:56,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:56,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360078788] [2023-11-23 21:09:56,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:56,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:56,892 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:09:56,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:56,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360078788] [2023-11-23 21:09:56,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360078788] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:09:56,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129206477] [2023-11-23 21:09:56,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:56,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:56,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:56,896 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:56,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 21:09:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:57,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 21:09:57,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:57,172 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:09:57,172 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:09:57,583 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:09:57,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129206477] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:09:57,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1983461933] [2023-11-23 21:09:57,585 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2023-11-23 21:09:57,585 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:09:57,586 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:09:57,586 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:09:57,586 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:09:57,675 INFO L197 IcfgInterpreter]: Interpreting procedure create_data with input of size 97 for LOIs [2023-11-23 21:09:58,843 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:10:03,839 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2385#(and (= create_data_~data~0.offset 0) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 199 create_data_~userInput~0)) (= create_data_~prevData.base 0) (= |create_data_#in~prevData.offset| 0) (<= 20 create_data_~counter~0) (= |create_data_#in~prevData.base| 0) (<= 0 (+ |create_data_#t~nondet17| 2147483648)) (<= (+ 2147483649 |create_data_#t~mem18| |create_data_#t~nondet17|) 0) (<= |create_data_#t~nondet17| 2147483647) (<= create_data_~userInput~0 199) (= create_data_~prevData.offset 0))' at error location [2023-11-23 21:10:03,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-23 21:10:03,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:10:03,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2023-11-23 21:10:03,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694459030] [2023-11-23 21:10:03,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:10:03,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-23 21:10:03,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:03,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-23 21:10:03,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=1726, Unknown=2, NotChecked=0, Total=2070 [2023-11-23 21:10:03,843 INFO L87 Difference]: Start difference. First operand 100 states and 117 transitions. Second operand has 34 states, 34 states have (on average 1.7352941176470589) internal successors, (59), 34 states have internal predecessors, (59), 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) [2023-11-23 21:10:04,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:04,626 INFO L93 Difference]: Finished difference Result 220 states and 271 transitions. [2023-11-23 21:10:04,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 21:10:04,627 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.7352941176470589) internal successors, (59), 34 states have internal predecessors, (59), 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 35 [2023-11-23 21:10:04,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:04,631 INFO L225 Difference]: With dead ends: 220 [2023-11-23 21:10:04,632 INFO L226 Difference]: Without dead ends: 148 [2023-11-23 21:10:04,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 69 SyntacticMatches, 7 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1456 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=695, Invalid=2843, Unknown=2, NotChecked=0, Total=3540 [2023-11-23 21:10:04,638 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 60 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:04,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 186 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:10:04,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-23 21:10:04,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-11-23 21:10:04,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 139 states have (on average 1.143884892086331) internal successors, (159), 143 states have internal predecessors, (159), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:10:04,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 165 transitions. [2023-11-23 21:10:04,661 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 165 transitions. Word has length 35 [2023-11-23 21:10:04,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:04,662 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 165 transitions. [2023-11-23 21:10:04,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.7352941176470589) internal successors, (59), 34 states have internal predecessors, (59), 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) [2023-11-23 21:10:04,662 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 165 transitions. [2023-11-23 21:10:04,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-23 21:10:04,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:04,664 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:04,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:04,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:10:04,880 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [create_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, create_dataErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:10:04,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:04,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1788278297, now seen corresponding path program 2 times [2023-11-23 21:10:04,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:04,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831047571] [2023-11-23 21:10:04,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:04,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:06,323 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:10:06,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:10:06,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831047571] [2023-11-23 21:10:06,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831047571] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:10:06,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740583608] [2023-11-23 21:10:06,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 21:10:06,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:10:06,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:10:06,325 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:10:06,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1317558-91b7-4d15-ad74-268e7b77f7cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process