./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 0e0057cc 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_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/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_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-24 23:55:45,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:55:45,838 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-24 23:55:45,850 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:55:45,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:55:45,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:55:45,891 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:55:45,892 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:55:45,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:55:45,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:55:45,899 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:55:45,900 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:55:45,901 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:55:45,903 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:55:45,903 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:55:45,904 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:55:45,904 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:55:45,905 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:55:45,906 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:55:45,906 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:55:45,907 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:55:45,907 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:55:45,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:55:45,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:55:45,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:55:45,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:55:45,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:55:45,911 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:55:45,912 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:55:45,912 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:55:45,913 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:55:45,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:55:45,914 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:55:45,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:55:45,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:55:45,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:55:45,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:55:45,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:55:45,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:55:45,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:55:45,917 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:55:45,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:55:45,917 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:55:45,918 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:55:45,918 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:55:45,919 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:55:45,919 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_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d5c8c451beb9221ae3ccfb201911d5862963c40de0699ef2809344939376120 [2023-11-24 23:55:46,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:55:46,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:55:46,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:55:46,228 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:55:46,230 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:55:46,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_12_good.i [2023-11-24 23:55:49,354 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:55:49,831 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:55:49,833 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_12_good.i [2023-11-24 23:55:49,870 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/data/1010aa46f/078340645ea94d0a97203deba6d9fd3b/FLAG195712da6 [2023-11-24 23:55:49,889 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/data/1010aa46f/078340645ea94d0a97203deba6d9fd3b [2023-11-24 23:55:49,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:55:49,897 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:55:49,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:55:49,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:55:49,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:55:49,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:55:49" (1/1) ... [2023-11-24 23:55:49,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5004f6e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:49, skipping insertion in model container [2023-11-24 23:55:49,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:55:49" (1/1) ... [2023-11-24 23:55:50,019 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:55:51,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:55:51,131 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:55:51,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:55:51,378 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:51,378 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:51,379 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:51,379 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:51,379 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:55:51,387 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:55:51,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:51 WrapperNode [2023-11-24 23:55:51,388 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:55:51,389 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:55:51,390 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:55:51,390 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:55:51,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:51" (1/1) ... [2023-11-24 23:55:51,435 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:51" (1/1) ... [2023-11-24 23:55:51,465 INFO L138 Inliner]: procedures = 501, calls = 84, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 137 [2023-11-24 23:55:51,465 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:55:51,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:55:51,466 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:55:51,466 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:55:51,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:51" (1/1) ... [2023-11-24 23:55:51,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:51" (1/1) ... [2023-11-24 23:55:51,488 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:51" (1/1) ... [2023-11-24 23:55:51,494 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:51" (1/1) ... [2023-11-24 23:55:51,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:51" (1/1) ... [2023-11-24 23:55:51,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:51" (1/1) ... [2023-11-24 23:55:51,519 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:51" (1/1) ... [2023-11-24 23:55:51,521 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:51" (1/1) ... [2023-11-24 23:55:51,525 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:55:51,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:55:51,532 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:55:51,532 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:55:51,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:51" (1/1) ... [2023-11-24 23:55:51,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:55:51,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:55:51,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:55:51,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:55:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-24 23:55:51,609 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-24 23:55:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-24 23:55:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2023-11-24 23:55:51,611 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2023-11-24 23:55:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:55:51,611 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:55:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:55:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:55:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:55:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:55:51,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:55:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:55:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:55:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:55:51,790 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:55:51,793 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:55:52,056 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:55:52,133 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:55:52,134 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:55:52,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:55:52 BoogieIcfgContainer [2023-11-24 23:55:52,135 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:55:52,138 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:55:52,138 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:55:52,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:55:52,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:55:49" (1/3) ... [2023-11-24 23:55:52,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25efc884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:55:52, skipping insertion in model container [2023-11-24 23:55:52,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:51" (2/3) ... [2023-11-24 23:55:52,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25efc884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:55:52, skipping insertion in model container [2023-11-24 23:55:52,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:55:52" (3/3) ... [2023-11-24 23:55:52,145 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_12_good.i [2023-11-24 23:55:52,164 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:55:52,164 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-24 23:55:52,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:55:52,219 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;@232f4bf7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:55:52,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-24 23:55:52,224 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 45 states have internal predecessors, (52), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-24 23:55:52,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 23:55:52,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:52,233 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:52,234 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-24 23:55:52,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:52,240 INFO L85 PathProgramCache]: Analyzing trace with hash 956362861, now seen corresponding path program 1 times [2023-11-24 23:55:52,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:52,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969850300] [2023-11-24 23:55:52,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:52,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:52,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:55:52,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:52,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969850300] [2023-11-24 23:55:52,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969850300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:52,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:52,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:55:52,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120005613] [2023-11-24 23:55:52,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:52,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:55:52,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:52,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:55:52,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:55:52,779 INFO L87 Difference]: Start difference. First operand has 63 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 45 states have internal predecessors, (52), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 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) [2023-11-24 23:55:52,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:52,897 INFO L93 Difference]: Finished difference Result 64 states and 81 transitions. [2023-11-24 23:55:52,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:55:52,900 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 [2023-11-24 23:55:52,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:52,909 INFO L225 Difference]: With dead ends: 64 [2023-11-24 23:55:52,909 INFO L226 Difference]: Without dead ends: 55 [2023-11-24 23:55:52,914 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 [2023-11-24 23:55:52,919 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 23 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:52,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 163 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:55:52,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-24 23:55:52,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2023-11-24 23:55:52,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 39 states have internal predecessors, (45), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 23:55:52,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 67 transitions. [2023-11-24 23:55:52,973 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 67 transitions. Word has length 19 [2023-11-24 23:55:52,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:52,975 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 67 transitions. [2023-11-24 23:55:52,975 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) [2023-11-24 23:55:52,976 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 67 transitions. [2023-11-24 23:55:52,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 23:55:52,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:52,978 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:52,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:55:52,979 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-24 23:55:52,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:52,980 INFO L85 PathProgramCache]: Analyzing trace with hash 956378749, now seen corresponding path program 1 times [2023-11-24 23:55:52,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:52,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244445083] [2023-11-24 23:55:52,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:52,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:53,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:55:53,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:53,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244445083] [2023-11-24 23:55:53,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244445083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:53,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:53,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:55:53,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46265945] [2023-11-24 23:55:53,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:53,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:55:53,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:53,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:55:53,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:55:53,227 INFO L87 Difference]: Start difference. First operand 54 states and 67 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) [2023-11-24 23:55:53,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:53,289 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2023-11-24 23:55:53,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:55:53,290 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 [2023-11-24 23:55:53,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:53,292 INFO L225 Difference]: With dead ends: 55 [2023-11-24 23:55:53,292 INFO L226 Difference]: Without dead ends: 54 [2023-11-24 23:55:53,293 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 [2023-11-24 23:55:53,294 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 22 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:53,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 132 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:55:53,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-24 23:55:53,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2023-11-24 23:55:53,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 38 states have internal predecessors, (44), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 23:55:53,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2023-11-24 23:55:53,307 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 66 transitions. Word has length 19 [2023-11-24 23:55:53,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:53,307 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 66 transitions. [2023-11-24 23:55:53,308 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) [2023-11-24 23:55:53,308 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2023-11-24 23:55:53,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 23:55:53,309 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:53,309 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:53,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:55:53,310 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-24 23:55:53,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:53,311 INFO L85 PathProgramCache]: Analyzing trace with hash -417522297, now seen corresponding path program 1 times [2023-11-24 23:55:53,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:53,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66617891] [2023-11-24 23:55:53,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:53,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:53,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:55:53,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:53,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66617891] [2023-11-24 23:55:53,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66617891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:53,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:53,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:55:53,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076126941] [2023-11-24 23:55:53,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:53,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:55:53,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:53,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:55:53,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:53,386 INFO L87 Difference]: Start difference. First operand 53 states and 66 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) [2023-11-24 23:55:53,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:53,412 INFO L93 Difference]: Finished difference Result 53 states and 66 transitions. [2023-11-24 23:55:53,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:55:53,413 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 [2023-11-24 23:55:53,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:53,415 INFO L225 Difference]: With dead ends: 53 [2023-11-24 23:55:53,415 INFO L226 Difference]: Without dead ends: 52 [2023-11-24 23:55:53,415 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 [2023-11-24 23:55:53,417 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 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 [2023-11-24 23:55:53,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:55:53,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-24 23:55:53,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-24 23:55:53,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.303030303030303) internal successors, (43), 37 states have internal predecessors, (43), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 23:55:53,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 65 transitions. [2023-11-24 23:55:53,429 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 65 transitions. Word has length 20 [2023-11-24 23:55:53,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:53,430 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 65 transitions. [2023-11-24 23:55:53,430 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) [2023-11-24 23:55:53,430 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 65 transitions. [2023-11-24 23:55:53,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 23:55:53,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:53,432 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:53,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:55:53,433 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-24 23:55:53,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:53,433 INFO L85 PathProgramCache]: Analyzing trace with hash -417029753, now seen corresponding path program 1 times [2023-11-24 23:55:53,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:53,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277364444] [2023-11-24 23:55:53,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:53,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:55:53,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:53,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277364444] [2023-11-24 23:55:53,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277364444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:53,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:53,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:55:53,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839893277] [2023-11-24 23:55:53,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:53,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:55:53,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:53,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:55:53,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:53,517 INFO L87 Difference]: Start difference. First operand 52 states and 65 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) [2023-11-24 23:55:53,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:53,560 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2023-11-24 23:55:53,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:55:53,561 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 [2023-11-24 23:55:53,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:53,565 INFO L225 Difference]: With dead ends: 52 [2023-11-24 23:55:53,565 INFO L226 Difference]: Without dead ends: 51 [2023-11-24 23:55:53,567 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 [2023-11-24 23:55:53,578 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 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 [2023-11-24 23:55:53,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:55:53,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-24 23:55:53,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-24 23:55:53,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 36 states have internal predecessors, (42), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 23:55:53,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2023-11-24 23:55:53,599 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 20 [2023-11-24 23:55:53,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:53,600 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2023-11-24 23:55:53,600 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) [2023-11-24 23:55:53,600 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2023-11-24 23:55:53,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-24 23:55:53,603 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:53,603 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, 1] [2023-11-24 23:55:53,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:55:53,604 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-24 23:55:53,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:53,605 INFO L85 PathProgramCache]: Analyzing trace with hash 2008498594, now seen corresponding path program 1 times [2023-11-24 23:55:53,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:53,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045081694] [2023-11-24 23:55:53,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:53,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:53,808 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-24 23:55:53,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:53,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045081694] [2023-11-24 23:55:53,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045081694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:53,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:53,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:55:53,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987725259] [2023-11-24 23:55:53,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:53,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:55:53,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:53,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:55:53,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:55:53,812 INFO L87 Difference]: Start difference. First operand 51 states and 64 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-11-24 23:55:53,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:53,863 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2023-11-24 23:55:53,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:55:53,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 33 [2023-11-24 23:55:53,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:53,867 INFO L225 Difference]: With dead ends: 51 [2023-11-24 23:55:53,867 INFO L226 Difference]: Without dead ends: 47 [2023-11-24 23:55:53,867 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 [2023-11-24 23:55:53,869 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 7 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:53,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 155 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:55:53,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-24 23:55:53,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-24 23:55:53,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 32 states have internal predecessors, (38), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 23:55:53,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 60 transitions. [2023-11-24 23:55:53,893 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 60 transitions. Word has length 33 [2023-11-24 23:55:53,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:53,895 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 60 transitions. [2023-11-24 23:55:53,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-11-24 23:55:53,896 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 60 transitions. [2023-11-24 23:55:53,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-24 23:55:53,902 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:53,903 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, 1] [2023-11-24 23:55:53,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:55:53,903 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-24 23:55:53,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:53,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2008498338, now seen corresponding path program 1 times [2023-11-24 23:55:53,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:53,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232133934] [2023-11-24 23:55:53,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:53,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:54,092 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-24 23:55:54,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:54,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232133934] [2023-11-24 23:55:54,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232133934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:54,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:54,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:55:54,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426652964] [2023-11-24 23:55:54,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:54,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:55:54,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:54,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:55:54,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:55:54,105 INFO L87 Difference]: Start difference. First operand 47 states and 60 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-11-24 23:55:54,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:54,147 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2023-11-24 23:55:54,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:55:54,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 33 [2023-11-24 23:55:54,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:54,149 INFO L225 Difference]: With dead ends: 47 [2023-11-24 23:55:54,149 INFO L226 Difference]: Without dead ends: 0 [2023-11-24 23:55:54,150 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 [2023-11-24 23:55:54,151 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 3 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 149 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 [2023-11-24 23:55:54,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 149 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:55:54,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-24 23:55:54,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-24 23:55:54,154 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) [2023-11-24 23:55:54,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-24 23:55:54,154 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2023-11-24 23:55:54,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:54,156 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-24 23:55:54,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-11-24 23:55:54,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-24 23:55:54,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:55:54,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-24 23:55:54,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-24 23:55:54,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-24 23:55:54,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-24 23:55:54,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-24 23:55:54,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-24 23:55:54,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-24 23:55:54,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-24 23:55:54,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 23:55:54,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-24 23:55:54,198 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-11-24 23:55:54,198 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-11-24 23:55:54,199 INFO L899 garLoopResultBuilder]: For program point globalReturnsTrueOrFalseEXIT(lines 1518 1521) no Hoare annotation was computed. [2023-11-24 23:55:54,199 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1518 1521) the Hoare annotation is: true [2023-11-24 23:55:54,199 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-11-24 23:55:54,199 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-11-24 23:55:54,200 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1597) no Hoare annotation was computed. [2023-11-24 23:55:54,200 INFO L899 garLoopResultBuilder]: For program point L1584(line 1584) no Hoare annotation was computed. [2023-11-24 23:55:54,201 INFO L899 garLoopResultBuilder]: For program point L1584-1(line 1584) no Hoare annotation was computed. [2023-11-24 23:55:54,201 INFO L902 garLoopResultBuilder]: At program point L1646(line 1646) the Hoare annotation is: true [2023-11-24 23:55:54,201 INFO L899 garLoopResultBuilder]: For program point L1646-1(line 1646) no Hoare annotation was computed. [2023-11-24 23:55:54,201 INFO L899 garLoopResultBuilder]: For program point L1580(line 1580) no Hoare annotation was computed. [2023-11-24 23:55:54,201 INFO L899 garLoopResultBuilder]: For program point L1580-1(lines 1580 1605) no Hoare annotation was computed. [2023-11-24 23:55:54,202 INFO L895 garLoopResultBuilder]: At program point L1576(line 1576) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-24 23:55:54,202 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1630) no Hoare annotation was computed. [2023-11-24 23:55:54,202 INFO L899 garLoopResultBuilder]: For program point L1576-1(line 1576) no Hoare annotation was computed. [2023-11-24 23:55:54,203 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1584) no Hoare annotation was computed. [2023-11-24 23:55:54,203 INFO L899 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2023-11-24 23:55:54,203 INFO L899 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2023-11-24 23:55:54,203 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1622) no Hoare annotation was computed. [2023-11-24 23:55:54,204 INFO L899 garLoopResultBuilder]: For program point L1630-1(line 1630) no Hoare annotation was computed. [2023-11-24 23:55:54,204 INFO L899 garLoopResultBuilder]: For program point L1597-1(line 1597) no Hoare annotation was computed. [2023-11-24 23:55:54,204 INFO L899 garLoopResultBuilder]: For program point L1622(line 1622) no Hoare annotation was computed. [2023-11-24 23:55:54,204 INFO L899 garLoopResultBuilder]: For program point L1622-1(line 1622) no Hoare annotation was computed. [2023-11-24 23:55:54,204 INFO L899 garLoopResultBuilder]: For program point L1556(lines 1556 1563) no Hoare annotation was computed. [2023-11-24 23:55:54,205 INFO L899 garLoopResultBuilder]: For program point L1556-2(lines 1556 1563) no Hoare annotation was computed. [2023-11-24 23:55:54,205 INFO L895 garLoopResultBuilder]: At program point L1552(line 1552) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-24 23:55:54,205 INFO L899 garLoopResultBuilder]: For program point L1552-1(line 1552) no Hoare annotation was computed. [2023-11-24 23:55:54,205 INFO L899 garLoopResultBuilder]: For program point L1552-2(lines 1552 1579) no Hoare annotation was computed. [2023-11-24 23:55:54,205 INFO L895 garLoopResultBuilder]: At program point L1552-4(lines 1552 1579) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-24 23:55:54,206 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1584) no Hoare annotation was computed. [2023-11-24 23:55:54,206 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-24 23:55:54,206 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1622) no Hoare annotation was computed. [2023-11-24 23:55:54,207 INFO L895 garLoopResultBuilder]: At program point L1590(line 1590) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-24 23:55:54,207 INFO L899 garLoopResultBuilder]: For program point L1590-1(line 1590) no Hoare annotation was computed. [2023-11-24 23:55:54,207 INFO L899 garLoopResultBuilder]: For program point L1619(line 1619) no Hoare annotation was computed. [2023-11-24 23:55:54,207 INFO L895 garLoopResultBuilder]: At program point L1586(line 1586) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-24 23:55:54,208 INFO L899 garLoopResultBuilder]: For program point L1619-1(lines 1619 1634) no Hoare annotation was computed. [2023-11-24 23:55:54,208 INFO L899 garLoopResultBuilder]: For program point L1586-1(line 1586) no Hoare annotation was computed. [2023-11-24 23:55:54,208 INFO L899 garLoopResultBuilder]: For program point L1582(lines 1582 1591) no Hoare annotation was computed. [2023-11-24 23:55:54,208 INFO L902 garLoopResultBuilder]: At program point L1644(line 1644) the Hoare annotation is: true [2023-11-24 23:55:54,208 INFO L899 garLoopResultBuilder]: For program point L1644-1(line 1644) no Hoare annotation was computed. [2023-11-24 23:55:54,209 INFO L902 garLoopResultBuilder]: At program point L1611(line 1611) the Hoare annotation is: true [2023-11-24 23:55:54,209 INFO L899 garLoopResultBuilder]: For program point L1611-1(line 1611) no Hoare annotation was computed. [2023-11-24 23:55:54,209 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-24 23:55:54,209 INFO L895 garLoopResultBuilder]: At program point L1611-4(lines 1611 1618) the Hoare annotation is: (= |ULTIMATE.start_goodG2B_~data~1#1| 2) [2023-11-24 23:55:54,209 INFO L899 garLoopResultBuilder]: For program point L1607(lines 1607 1635) no Hoare annotation was computed. [2023-11-24 23:55:54,210 INFO L895 garLoopResultBuilder]: At program point L1603(line 1603) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-24 23:55:54,210 INFO L899 garLoopResultBuilder]: For program point L1570(lines 1570 1577) no Hoare annotation was computed. [2023-11-24 23:55:54,210 INFO L899 garLoopResultBuilder]: For program point L1603-1(line 1603) no Hoare annotation was computed. [2023-11-24 23:55:54,210 INFO L899 garLoopResultBuilder]: For program point L1570-2(lines 1570 1577) no Hoare annotation was computed. [2023-11-24 23:55:54,210 INFO L902 garLoopResultBuilder]: At program point L1632(line 1632) the Hoare annotation is: true [2023-11-24 23:55:54,211 INFO L895 garLoopResultBuilder]: At program point L1599(line 1599) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-24 23:55:54,211 INFO L899 garLoopResultBuilder]: For program point L1632-1(line 1632) no Hoare annotation was computed. [2023-11-24 23:55:54,211 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1597) no Hoare annotation was computed. [2023-11-24 23:55:54,211 INFO L899 garLoopResultBuilder]: For program point L1599-1(line 1599) no Hoare annotation was computed. [2023-11-24 23:55:54,211 INFO L899 garLoopResultBuilder]: For program point L1595(lines 1595 1604) no Hoare annotation was computed. [2023-11-24 23:55:54,212 INFO L895 garLoopResultBuilder]: At program point L1562(line 1562) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2023-11-24 23:55:54,212 INFO L899 garLoopResultBuilder]: For program point L1562-1(line 1562) no Hoare annotation was computed. [2023-11-24 23:55:54,212 INFO L899 garLoopResultBuilder]: For program point L1595-2(lines 1548 1606) no Hoare annotation was computed. [2023-11-24 23:55:54,212 INFO L902 garLoopResultBuilder]: At program point L1624(line 1624) the Hoare annotation is: true [2023-11-24 23:55:54,212 INFO L899 garLoopResultBuilder]: For program point L1624-1(line 1624) no Hoare annotation was computed. [2023-11-24 23:55:54,213 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1630) no Hoare annotation was computed. [2023-11-24 23:55:54,218 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-24 23:55:54,227 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:55:54,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:55:54 BoogieIcfgContainer [2023-11-24 23:55:54,235 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:55:54,236 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:55:54,236 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:55:54,236 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:55:54,237 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:55:52" (3/4) ... [2023-11-24 23:55:54,239 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:55:54,242 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-24 23:55:54,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrueOrFalse [2023-11-24 23:55:54,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-24 23:55:54,252 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-11-24 23:55:54,253 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-24 23:55:54,253 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-24 23:55:54,254 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:55:54,255 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:55:54,387 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-24 23:55:54,388 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-24 23:55:54,388 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:55:54,389 INFO L158 Benchmark]: Toolchain (without parser) took 4491.99ms. Allocated memory was 113.2MB in the beginning and 192.9MB in the end (delta: 79.7MB). Free memory was 57.9MB in the beginning and 123.1MB in the end (delta: -65.2MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2023-11-24 23:55:54,389 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:55:54,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1483.31ms. Allocated memory was 113.2MB in the beginning and 159.4MB in the end (delta: 46.1MB). Free memory was 57.7MB in the beginning and 77.2MB in the end (delta: -19.5MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2023-11-24 23:55:54,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.86ms. Allocated memory is still 159.4MB. Free memory was 77.2MB in the beginning and 74.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:55:54,394 INFO L158 Benchmark]: Boogie Preprocessor took 65.24ms. Allocated memory is still 159.4MB. Free memory was 74.4MB in the beginning and 72.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:55:54,394 INFO L158 Benchmark]: RCFGBuilder took 603.88ms. Allocated memory is still 159.4MB. Free memory was 72.3MB in the beginning and 107.7MB in the end (delta: -35.5MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2023-11-24 23:55:54,395 INFO L158 Benchmark]: TraceAbstraction took 2097.25ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 107.7MB in the beginning and 129.4MB in the end (delta: -21.7MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2023-11-24 23:55:54,395 INFO L158 Benchmark]: Witness Printer took 152.61ms. Allocated memory is still 192.9MB. Free memory was 129.4MB in the beginning and 123.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 23:55:54,398 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1483.31ms. Allocated memory was 113.2MB in the beginning and 159.4MB in the end (delta: 46.1MB). Free memory was 57.7MB in the beginning and 77.2MB in the end (delta: -19.5MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.86ms. Allocated memory is still 159.4MB. Free memory was 77.2MB in the beginning and 74.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.24ms. Allocated memory is still 159.4MB. Free memory was 74.4MB in the beginning and 72.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 603.88ms. Allocated memory is still 159.4MB. Free memory was 72.3MB in the beginning and 107.7MB in the end (delta: -35.5MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2097.25ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 107.7MB in the beginning and 129.4MB in the end (delta: -21.7MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Witness Printer took 152.61ms. Allocated memory is still 192.9MB. Free memory was 129.4MB in the beginning and 123.1MB 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, 63 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55 mSDsluCounter, 823 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 483 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 340 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=63occurred 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 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! [2023-11-24 23:55:54,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5456c494-8914-4638-a0a4-701a85738902/bin/utaipan-verify-SwPr7d2a91/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