./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_12_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/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_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_12_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/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 64bit --witnessprinter.graph.data.programhash 5d5c8c451beb9221ae3ccfb201911d5862963c40de0699ef2809344939376120 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:38:04,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:38:04,673 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-23 20:38:04,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:38:04,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:38:04,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:38:04,728 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:38:04,729 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:38:04,730 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:38:04,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:38:04,736 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:38:04,737 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:38:04,738 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:38:04,739 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:38:04,740 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:38:04,740 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:38:04,741 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:38:04,741 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:38:04,742 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:38:04,742 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:38:04,744 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:38:04,745 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:38:04,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:38:04,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:38:04,747 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:38:04,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:38:04,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:38:04,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:38:04,748 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:38:04,749 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:38:04,750 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:38:04,750 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:38:04,751 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:38:04,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:38:04,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:38:04,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:38:04,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:38:04,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:38:04,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:38:04,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:38:04,753 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:38:04,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:38:04,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:38:04,754 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:38:04,755 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:38:04,755 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:38:04,755 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_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d5c8c451beb9221ae3ccfb201911d5862963c40de0699ef2809344939376120 [2023-11-23 20:38:05,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:38:05,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:38:05,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:38:05,082 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:38:05,083 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:38:05,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_12_good.i [2023-11-23 20:38:08,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:38:09,039 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:38:09,040 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_12_good.i [2023-11-23 20:38:09,076 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/bin/utaipan-verify-mE87zJ7Ire/data/518a34a29/9a1c4c6a226a41508d28e783ae914068/FLAG373a44e55 [2023-11-23 20:38:09,095 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/bin/utaipan-verify-mE87zJ7Ire/data/518a34a29/9a1c4c6a226a41508d28e783ae914068 [2023-11-23 20:38:09,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:38:09,100 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:38:09,102 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:38:09,102 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:38:09,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:38:09,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:38:09" (1/1) ... [2023-11-23 20:38:09,112 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@513ca6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:09, skipping insertion in model container [2023-11-23 20:38:09,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:38:09" (1/1) ... [2023-11-23 20:38:09,210 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:38:09,782 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:38:10,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:38:10,617 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:38:10,660 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:38:10,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:38:10,963 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:38:10,963 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:38:10,963 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:38:10,964 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:38:10,964 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:38:10,964 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:38:10,974 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:38:10,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:10 WrapperNode [2023-11-23 20:38:10,975 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:38:10,976 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:38:10,976 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:38:10,977 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:38:10,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:10" (1/1) ... [2023-11-23 20:38:11,022 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:10" (1/1) ... [2023-11-23 20:38:11,060 INFO L138 Inliner]: procedures = 502, calls = 85, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 125 [2023-11-23 20:38:11,060 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:38:11,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:38:11,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:38:11,062 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:38:11,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:10" (1/1) ... [2023-11-23 20:38:11,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:10" (1/1) ... [2023-11-23 20:38:11,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:10" (1/1) ... [2023-11-23 20:38:11,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:10" (1/1) ... [2023-11-23 20:38:11,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:10" (1/1) ... [2023-11-23 20:38:11,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:10" (1/1) ... [2023-11-23 20:38:11,094 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:10" (1/1) ... [2023-11-23 20:38:11,096 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:10" (1/1) ... [2023-11-23 20:38:11,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:38:11,101 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:38:11,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:38:11,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:38:11,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:10" (1/1) ... [2023-11-23 20:38:11,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:38:11,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:38:11,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:38:11,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:38:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-23 20:38:11,209 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-23 20:38:11,209 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:38:11,209 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2023-11-23 20:38:11,209 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2023-11-23 20:38:11,210 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:38:11,210 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:38:11,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:38:11,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:38:11,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:38:11,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:38:11,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:38:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:38:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:38:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:38:11,451 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:38:11,454 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:38:11,751 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:38:11,809 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:38:11,810 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:38:11,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:38:11 BoogieIcfgContainer [2023-11-23 20:38:11,812 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:38:11,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:38:11,815 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:38:11,819 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:38:11,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:38:09" (1/3) ... [2023-11-23 20:38:11,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b5c332a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:38:11, skipping insertion in model container [2023-11-23 20:38:11,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:10" (2/3) ... [2023-11-23 20:38:11,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b5c332a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:38:11, skipping insertion in model container [2023-11-23 20:38:11,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:38:11" (3/3) ... [2023-11-23 20:38:11,823 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_12_good.i [2023-11-23 20:38:11,848 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:38:11,849 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-23 20:38:11,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:38:11,919 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;@4296c0ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:38:11,919 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-23 20:38:11,925 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 45 states have internal predecessors, (48), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 20:38:11,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 20:38:11,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:11,938 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:11,938 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 20:38:11,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:11,945 INFO L85 PathProgramCache]: Analyzing trace with hash 797637576, now seen corresponding path program 1 times [2023-11-23 20:38:11,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:11,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789930380] [2023-11-23 20:38:11,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:11,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:12,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:38:12,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:12,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789930380] [2023-11-23 20:38:12,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789930380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:12,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:12,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:12,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888086212] [2023-11-23 20:38:12,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:12,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:38:12,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:12,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:38:12,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:38:12,726 INFO L87 Difference]: Start difference. First operand has 59 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 45 states have internal predecessors, (48), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 20:38:12,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:12,872 INFO L93 Difference]: Finished difference Result 60 states and 77 transitions. [2023-11-23 20:38:12,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:38:12,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2023-11-23 20:38:12,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:12,886 INFO L225 Difference]: With dead ends: 60 [2023-11-23 20:38:12,887 INFO L226 Difference]: Without dead ends: 51 [2023-11-23 20:38:12,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:38:12,895 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 19 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:12,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 156 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:38:12,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-23 20:38:12,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2023-11-23 20:38:12,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 39 states have internal predecessors, (41), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 20:38:12,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2023-11-23 20:38:12,953 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 19 [2023-11-23 20:38:12,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:12,955 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2023-11-23 20:38:12,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 20:38:12,955 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2023-11-23 20:38:12,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 20:38:12,958 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:12,958 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:12,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:38:12,959 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 20:38:12,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:12,960 INFO L85 PathProgramCache]: Analyzing trace with hash 797622681, now seen corresponding path program 1 times [2023-11-23 20:38:12,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:12,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935808172] [2023-11-23 20:38:12,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:12,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:13,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:38:13,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:13,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935808172] [2023-11-23 20:38:13,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935808172] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:13,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:13,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:13,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076422895] [2023-11-23 20:38:13,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:13,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:38:13,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:13,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:38:13,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:38:13,130 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 20:38:13,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:13,245 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2023-11-23 20:38:13,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:38:13,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2023-11-23 20:38:13,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:13,251 INFO L225 Difference]: With dead ends: 51 [2023-11-23 20:38:13,251 INFO L226 Difference]: Without dead ends: 50 [2023-11-23 20:38:13,252 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 20:38:13,253 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 18 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:13,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 123 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:38:13,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-23 20:38:13,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2023-11-23 20:38:13,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 38 states have internal predecessors, (40), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 20:38:13,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions. [2023-11-23 20:38:13,278 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 19 [2023-11-23 20:38:13,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:13,279 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 62 transitions. [2023-11-23 20:38:13,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 20:38:13,280 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2023-11-23 20:38:13,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 20:38:13,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:13,282 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:13,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:38:13,283 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 20:38:13,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:13,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1043038823, now seen corresponding path program 1 times [2023-11-23 20:38:13,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:13,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203265447] [2023-11-23 20:38:13,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:13,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:13,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:38:13,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:13,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203265447] [2023-11-23 20:38:13,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203265447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:13,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:13,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:38:13,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159953314] [2023-11-23 20:38:13,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:13,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:38:13,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:13,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:38:13,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:13,500 INFO L87 Difference]: Start difference. First operand 49 states and 62 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 20:38:13,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:13,553 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2023-11-23 20:38:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:38:13,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2023-11-23 20:38:13,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:13,559 INFO L225 Difference]: With dead ends: 49 [2023-11-23 20:38:13,559 INFO L226 Difference]: Without dead ends: 48 [2023-11-23 20:38:13,559 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 20:38:13,561 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:13,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:38:13,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-23 20:38:13,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-23 20:38:13,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 37 states have internal predecessors, (39), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 20:38:13,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2023-11-23 20:38:13,581 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 20 [2023-11-23 20:38:13,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:13,583 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2023-11-23 20:38:13,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 20:38:13,583 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2023-11-23 20:38:13,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 20:38:13,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:13,587 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:13,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:38:13,588 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 20:38:13,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:13,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1043500583, now seen corresponding path program 1 times [2023-11-23 20:38:13,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:13,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752211317] [2023-11-23 20:38:13,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:13,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:13,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:38:13,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:13,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752211317] [2023-11-23 20:38:13,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752211317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:13,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:13,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:38:13,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787747621] [2023-11-23 20:38:13,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:13,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:38:13,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:13,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:38:13,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:13,726 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 20:38:13,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:13,779 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2023-11-23 20:38:13,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:38:13,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2023-11-23 20:38:13,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:13,783 INFO L225 Difference]: With dead ends: 48 [2023-11-23 20:38:13,784 INFO L226 Difference]: Without dead ends: 47 [2023-11-23 20:38:13,787 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 20:38:13,793 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:13,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:38:13,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-23 20:38:13,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-23 20:38:13,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 36 states have internal predecessors, (38), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 20:38:13,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 60 transitions. [2023-11-23 20:38:13,818 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 60 transitions. Word has length 20 [2023-11-23 20:38:13,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:13,820 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 60 transitions. [2023-11-23 20:38:13,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 20:38:13,820 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 60 transitions. [2023-11-23 20:38:13,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 20:38:13,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:13,823 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:13,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 20:38:13,824 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 20:38:13,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:13,825 INFO L85 PathProgramCache]: Analyzing trace with hash 322429076, now seen corresponding path program 1 times [2023-11-23 20:38:13,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:13,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098916658] [2023-11-23 20:38:13,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:13,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:38:14,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:14,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098916658] [2023-11-23 20:38:14,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098916658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:14,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:14,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:14,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440693166] [2023-11-23 20:38:14,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:14,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:38:14,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:14,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:38:14,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:38:14,026 INFO L87 Difference]: Start difference. First operand 47 states and 60 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 20:38:14,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:14,097 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2023-11-23 20:38:14,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:38:14,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 32 [2023-11-23 20:38:14,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:14,099 INFO L225 Difference]: With dead ends: 47 [2023-11-23 20:38:14,099 INFO L226 Difference]: Without dead ends: 43 [2023-11-23 20:38:14,100 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 20:38:14,101 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 7 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:14,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 143 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:38:14,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-23 20:38:14,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-23 20:38:14,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 32 states have internal predecessors, (34), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 20:38:14,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2023-11-23 20:38:14,112 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 32 [2023-11-23 20:38:14,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:14,113 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2023-11-23 20:38:14,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 20:38:14,113 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2023-11-23 20:38:14,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 20:38:14,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:14,115 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:14,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 20:38:14,116 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 20:38:14,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:14,117 INFO L85 PathProgramCache]: Analyzing trace with hash 322429332, now seen corresponding path program 1 times [2023-11-23 20:38:14,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:14,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778194064] [2023-11-23 20:38:14,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:14,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:14,313 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:38:14,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:14,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778194064] [2023-11-23 20:38:14,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778194064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:14,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:14,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:14,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844145164] [2023-11-23 20:38:14,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:14,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:38:14,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:14,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:38:14,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:38:14,329 INFO L87 Difference]: Start difference. First operand 43 states and 56 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 20:38:14,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:14,391 INFO L93 Difference]: Finished difference Result 43 states and 56 transitions. [2023-11-23 20:38:14,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:38:14,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 32 [2023-11-23 20:38:14,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:14,393 INFO L225 Difference]: With dead ends: 43 [2023-11-23 20:38:14,393 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 20:38:14,394 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 20:38:14,399 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 3 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:14,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 137 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:38:14,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 20:38:14,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 20:38:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:38:14,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 20:38:14,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2023-11-23 20:38:14,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:14,407 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 20:38:14,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 20:38:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 20:38:14,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:38:14,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-23 20:38:14,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-23 20:38:14,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-23 20:38:14,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-23 20:38:14,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-23 20:38:14,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-23 20:38:14,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-23 20:38:14,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-23 20:38:14,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 20:38:14,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 20:38:14,469 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-11-23 20:38:14,470 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-11-23 20:38:14,470 INFO L899 garLoopResultBuilder]: For program point globalReturnsTrueOrFalseEXIT(lines 1518 1521) no Hoare annotation was computed. [2023-11-23 20:38:14,470 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1518 1521) the Hoare annotation is: true [2023-11-23 20:38:14,471 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-11-23 20:38:14,471 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-11-23 20:38:14,471 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1597) no Hoare annotation was computed. [2023-11-23 20:38:14,471 INFO L899 garLoopResultBuilder]: For program point L1584(line 1584) no Hoare annotation was computed. [2023-11-23 20:38:14,473 INFO L899 garLoopResultBuilder]: For program point L1584-1(line 1584) no Hoare annotation was computed. [2023-11-23 20:38:14,473 INFO L902 garLoopResultBuilder]: At program point L1646(line 1646) the Hoare annotation is: true [2023-11-23 20:38:14,473 INFO L899 garLoopResultBuilder]: For program point L1646-1(line 1646) no Hoare annotation was computed. [2023-11-23 20:38:14,474 INFO L899 garLoopResultBuilder]: For program point L1580(line 1580) no Hoare annotation was computed. [2023-11-23 20:38:14,474 INFO L899 garLoopResultBuilder]: For program point L1580-1(lines 1580 1605) no Hoare annotation was computed. [2023-11-23 20:38:14,477 INFO L895 garLoopResultBuilder]: At program point L1576(line 1576) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-23 20:38:14,478 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1630) no Hoare annotation was computed. [2023-11-23 20:38:14,478 INFO L899 garLoopResultBuilder]: For program point L1576-1(lines 1570 1577) no Hoare annotation was computed. [2023-11-23 20:38:14,479 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1584) no Hoare annotation was computed. [2023-11-23 20:38:14,479 INFO L899 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2023-11-23 20:38:14,480 INFO L899 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2023-11-23 20:38:14,480 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1622) no Hoare annotation was computed. [2023-11-23 20:38:14,480 INFO L899 garLoopResultBuilder]: For program point L1630-1(line 1630) no Hoare annotation was computed. [2023-11-23 20:38:14,480 INFO L899 garLoopResultBuilder]: For program point L1597-1(line 1597) no Hoare annotation was computed. [2023-11-23 20:38:14,481 INFO L899 garLoopResultBuilder]: For program point L1622(line 1622) no Hoare annotation was computed. [2023-11-23 20:38:14,481 INFO L899 garLoopResultBuilder]: For program point L1622-1(line 1622) no Hoare annotation was computed. [2023-11-23 20:38:14,482 INFO L899 garLoopResultBuilder]: For program point L1556(lines 1556 1563) no Hoare annotation was computed. [2023-11-23 20:38:14,482 INFO L895 garLoopResultBuilder]: At program point L1552(line 1552) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-23 20:38:14,482 INFO L899 garLoopResultBuilder]: For program point L1552-1(line 1552) no Hoare annotation was computed. [2023-11-23 20:38:14,484 INFO L899 garLoopResultBuilder]: For program point L1552-2(lines 1552 1579) no Hoare annotation was computed. [2023-11-23 20:38:14,484 INFO L895 garLoopResultBuilder]: At program point L1552-4(lines 1552 1579) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-23 20:38:14,485 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1584) no Hoare annotation was computed. [2023-11-23 20:38:14,485 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 20:38:14,485 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1622) no Hoare annotation was computed. [2023-11-23 20:38:14,486 INFO L895 garLoopResultBuilder]: At program point L1590(line 1590) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-23 20:38:14,486 INFO L899 garLoopResultBuilder]: For program point L1619(line 1619) no Hoare annotation was computed. [2023-11-23 20:38:14,486 INFO L895 garLoopResultBuilder]: At program point L1586(line 1586) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-23 20:38:14,487 INFO L899 garLoopResultBuilder]: For program point L1619-1(lines 1619 1634) no Hoare annotation was computed. [2023-11-23 20:38:14,487 INFO L899 garLoopResultBuilder]: For program point L1586-1(line 1586) no Hoare annotation was computed. [2023-11-23 20:38:14,488 INFO L899 garLoopResultBuilder]: For program point L1582(lines 1582 1591) no Hoare annotation was computed. [2023-11-23 20:38:14,488 INFO L902 garLoopResultBuilder]: At program point L1644(line 1644) the Hoare annotation is: true [2023-11-23 20:38:14,488 INFO L899 garLoopResultBuilder]: For program point L1644-1(line 1644) no Hoare annotation was computed. [2023-11-23 20:38:14,488 INFO L902 garLoopResultBuilder]: At program point L1611(line 1611) the Hoare annotation is: true [2023-11-23 20:38:14,489 INFO L899 garLoopResultBuilder]: For program point L1611-1(line 1611) no Hoare annotation was computed. [2023-11-23 20:38:14,489 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 20:38:14,489 INFO L895 garLoopResultBuilder]: At program point L1611-4(lines 1611 1618) the Hoare annotation is: (= |ULTIMATE.start_goodG2B_~data~1#1| 2) [2023-11-23 20:38:14,490 INFO L899 garLoopResultBuilder]: For program point L1607(lines 1607 1635) no Hoare annotation was computed. [2023-11-23 20:38:14,490 INFO L895 garLoopResultBuilder]: At program point L1603(line 1603) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-23 20:38:14,490 INFO L899 garLoopResultBuilder]: For program point L1570(lines 1570 1577) no Hoare annotation was computed. [2023-11-23 20:38:14,490 INFO L899 garLoopResultBuilder]: For program point L1603-1(lines 1548 1606) no Hoare annotation was computed. [2023-11-23 20:38:14,491 INFO L902 garLoopResultBuilder]: At program point L1632(line 1632) the Hoare annotation is: true [2023-11-23 20:38:14,491 INFO L895 garLoopResultBuilder]: At program point L1599(line 1599) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-23 20:38:14,491 INFO L899 garLoopResultBuilder]: For program point L1632-1(line 1632) no Hoare annotation was computed. [2023-11-23 20:38:14,491 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1597) no Hoare annotation was computed. [2023-11-23 20:38:14,492 INFO L899 garLoopResultBuilder]: For program point L1599-1(line 1599) no Hoare annotation was computed. [2023-11-23 20:38:14,492 INFO L899 garLoopResultBuilder]: For program point L1595(lines 1595 1604) no Hoare annotation was computed. [2023-11-23 20:38:14,492 INFO L895 garLoopResultBuilder]: At program point L1562(line 1562) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-23 20:38:14,493 INFO L899 garLoopResultBuilder]: For program point L1562-1(lines 1556 1563) no Hoare annotation was computed. [2023-11-23 20:38:14,493 INFO L902 garLoopResultBuilder]: At program point L1624(line 1624) the Hoare annotation is: true [2023-11-23 20:38:14,493 INFO L899 garLoopResultBuilder]: For program point L1624-1(line 1624) no Hoare annotation was computed. [2023-11-23 20:38:14,493 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1630) no Hoare annotation was computed. [2023-11-23 20:38:14,498 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-23 20:38:14,502 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:38:14,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:38:14 BoogieIcfgContainer [2023-11-23 20:38:14,514 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:38:14,515 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:38:14,515 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:38:14,516 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:38:14,516 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:38:11" (3/4) ... [2023-11-23 20:38:14,519 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:38:14,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-23 20:38:14,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrueOrFalse [2023-11-23 20:38:14,525 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-23 20:38:14,537 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-11-23 20:38:14,538 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-23 20:38:14,539 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 20:38:14,539 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:38:14,540 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:38:14,682 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 20:38:14,683 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 20:38:14,684 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:38:14,685 INFO L158 Benchmark]: Toolchain (without parser) took 5584.50ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 111.5MB in the beginning and 126.5MB in the end (delta: -15.0MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2023-11-23 20:38:14,685 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:38:14,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1873.27ms. Allocated memory is still 159.4MB. Free memory was 111.5MB in the beginning and 87.9MB in the end (delta: 23.6MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2023-11-23 20:38:14,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.53ms. Allocated memory is still 159.4MB. Free memory was 87.9MB in the beginning and 84.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:38:14,687 INFO L158 Benchmark]: Boogie Preprocessor took 39.37ms. Allocated memory is still 159.4MB. Free memory was 84.7MB in the beginning and 83.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:38:14,687 INFO L158 Benchmark]: RCFGBuilder took 710.71ms. Allocated memory is still 159.4MB. Free memory was 83.2MB in the beginning and 117.0MB in the end (delta: -33.9MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2023-11-23 20:38:14,688 INFO L158 Benchmark]: TraceAbstraction took 2699.29ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 116.2MB in the beginning and 132.8MB in the end (delta: -16.5MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2023-11-23 20:38:14,688 INFO L158 Benchmark]: Witness Printer took 168.63ms. Allocated memory is still 192.9MB. Free memory was 132.8MB in the beginning and 126.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:38:14,691 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1873.27ms. Allocated memory is still 159.4MB. Free memory was 111.5MB in the beginning and 87.9MB in the end (delta: 23.6MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.53ms. Allocated memory is still 159.4MB. Free memory was 87.9MB in the beginning and 84.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.37ms. Allocated memory is still 159.4MB. Free memory was 84.7MB in the beginning and 83.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 710.71ms. Allocated memory is still 159.4MB. Free memory was 83.2MB in the beginning and 117.0MB in the end (delta: -33.9MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2699.29ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 116.2MB in the beginning and 132.8MB in the end (delta: -16.5MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * Witness Printer took 168.63ms. Allocated memory is still 192.9MB. Free memory was 132.8MB in the beginning and 126.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1597]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1597]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1622]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1622]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 59 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 767 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 451 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 316 mSDtfsCounter, 136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 28 PreInvPairs, 28 NumberOfFragments, 51 HoareAnnotationTreeSize, 28 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 208 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 36/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-23 20:38:14,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf2a6ac-dbb0-4ab6-8bc4-0976fa8bbf76/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE