./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_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_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh --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 c3f973fa7d7be30fc3df78d2bddf09b810e00b412f10b5f2e2735413d8d4f793 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:07:50,733 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:07:50,794 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 16:07:50,798 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:07:50,798 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:07:50,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:07:50,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:07:50,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:07:50,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:07:50,821 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:07:50,821 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:07:50,822 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:07:50,822 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:07:50,823 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:07:50,823 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:07:50,824 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:07:50,824 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:07:50,825 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:07:50,825 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:07:50,826 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:07:50,827 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:07:50,827 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:07:50,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:07:50,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:07:50,829 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:07:50,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:07:50,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:07:50,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:07:50,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:07:50,831 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 16:07:50,831 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 16:07:50,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:07:50,832 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:07:50,832 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:07:50,832 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:07:50,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:07:50,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:07:50,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:07:50,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:07:50,833 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:07:50,834 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:07:50,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:07:50,834 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:07:50,834 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:07:50,835 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:07:50,835 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:07:50,835 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_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3f973fa7d7be30fc3df78d2bddf09b810e00b412f10b5f2e2735413d8d4f793 [2023-12-02 16:07:51,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:07:51,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:07:51,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:07:51,095 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:07:51,096 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:07:51,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_good.i [2023-12-02 16:07:53,916 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:07:54,206 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:07:54,207 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_good.i [2023-12-02 16:07:54,232 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/data/9a253e821/ad826752468d4c5283334c7f4ed17322/FLAG549f6d58f [2023-12-02 16:07:54,247 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/data/9a253e821/ad826752468d4c5283334c7f4ed17322 [2023-12-02 16:07:54,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:07:54,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:07:54,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:07:54,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:07:54,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:07:54,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:07:54" (1/1) ... [2023-12-02 16:07:54,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dbe0bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:54, skipping insertion in model container [2023-12-02 16:07:54,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:07:54" (1/1) ... [2023-12-02 16:07:54,320 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:07:55,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:07:55,211 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:07:55,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:07:55,438 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:07:55,438 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:07:55,439 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:07:55,439 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:07:55,439 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:07:55,447 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:07:55,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:55 WrapperNode [2023-12-02 16:07:55,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:07:55,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:07:55,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:07:55,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:07:55,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:55" (1/1) ... [2023-12-02 16:07:55,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:55" (1/1) ... [2023-12-02 16:07:55,512 INFO L138 Inliner]: procedures = 501, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 102 [2023-12-02 16:07:55,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:07:55,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:07:55,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:07:55,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:07:55,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:55" (1/1) ... [2023-12-02 16:07:55,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:55" (1/1) ... [2023-12-02 16:07:55,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:55" (1/1) ... [2023-12-02 16:07:55,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:55" (1/1) ... [2023-12-02 16:07:55,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:55" (1/1) ... [2023-12-02 16:07:55,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:55" (1/1) ... [2023-12-02 16:07:55,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:55" (1/1) ... [2023-12-02 16:07:55,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:55" (1/1) ... [2023-12-02 16:07:55,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:07:55,546 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:07:55,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:07:55,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:07:55,547 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:55" (1/1) ... [2023-12-02 16:07:55,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:07:55,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:07:55,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:07:55,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:07:55,629 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-02 16:07:55,630 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-02 16:07:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-02 16:07:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 16:07:55,630 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 16:07:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 16:07:55,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 16:07:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 16:07:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:07:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:07:55,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:07:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 16:07:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 16:07:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 16:07:55,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:07:55,776 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:07:55,779 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:07:55,920 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:07:55,962 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:07:55,962 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 16:07:55,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:07:55 BoogieIcfgContainer [2023-12-02 16:07:55,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:07:55,967 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:07:55,967 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:07:55,970 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:07:55,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:07:54" (1/3) ... [2023-12-02 16:07:55,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edc2182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:07:55, skipping insertion in model container [2023-12-02 16:07:55,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:55" (2/3) ... [2023-12-02 16:07:55,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edc2182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:07:55, skipping insertion in model container [2023-12-02 16:07:55,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:07:55" (3/3) ... [2023-12-02 16:07:55,973 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_32_good.i [2023-12-02 16:07:55,993 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:07:55,993 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-02 16:07:56,036 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:07:56,042 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;@7194ff34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:07:56,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-02 16:07:56,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 21 states have internal predecessors, (23), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 16:07:56,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 16:07:56,053 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:07:56,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 16:07:56,055 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:07:56,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:07:56,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1292098434, now seen corresponding path program 1 times [2023-12-02 16:07:56,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:07:56,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530581231] [2023-12-02 16:07:56,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:07:56,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:07:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:07:56,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:07:56,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:07:56,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530581231] [2023-12-02 16:07:56,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530581231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:07:56,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:07:56,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:07:56,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541384169] [2023-12-02 16:07:56,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:07:56,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:07:56,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:07:56,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:07:56,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:07:56,533 INFO L87 Difference]: Start difference. First operand has 30 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 21 states have internal predecessors, (23), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 16:07:56,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:07:56,575 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2023-12-02 16:07:56,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:07:56,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 6 [2023-12-02 16:07:56,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:07:56,583 INFO L225 Difference]: With dead ends: 30 [2023-12-02 16:07:56,583 INFO L226 Difference]: Without dead ends: 21 [2023-12-02 16:07:56,585 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 [2023-12-02 16:07:56,588 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 2 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:07:56,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:07:56,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-12-02 16:07:56,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-12-02 16:07:56,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 16:07:56,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2023-12-02 16:07:56,616 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 6 [2023-12-02 16:07:56,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:07:56,618 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2023-12-02 16:07:56,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 16:07:56,618 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2023-12-02 16:07:56,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 16:07:56,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:07:56,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:07:56,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:07:56,620 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:07:56,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:07:56,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1400345742, now seen corresponding path program 1 times [2023-12-02 16:07:56,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:07:56,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131080215] [2023-12-02 16:07:56,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:07:56,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:07:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:07:56,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:07:56,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:07:56,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131080215] [2023-12-02 16:07:56,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131080215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:07:56,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:07:56,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:07:56,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094566461] [2023-12-02 16:07:56,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:07:56,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:07:56,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:07:56,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:07:56,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:07:56,748 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 16:07:56,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:07:56,766 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2023-12-02 16:07:56,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:07:56,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2023-12-02 16:07:56,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:07:56,768 INFO L225 Difference]: With dead ends: 21 [2023-12-02 16:07:56,768 INFO L226 Difference]: Without dead ends: 20 [2023-12-02 16:07:56,769 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 [2023-12-02 16:07:56,770 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:07:56,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 28 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:07:56,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-12-02 16:07:56,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-12-02 16:07:56,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 16:07:56,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2023-12-02 16:07:56,776 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 7 [2023-12-02 16:07:56,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:07:56,776 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2023-12-02 16:07:56,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 16:07:56,777 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2023-12-02 16:07:56,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 16:07:56,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:07:56,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:07:56,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 16:07:56,778 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:07:56,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:07:56,779 INFO L85 PathProgramCache]: Analyzing trace with hash -660357613, now seen corresponding path program 1 times [2023-12-02 16:07:56,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:07:56,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27132830] [2023-12-02 16:07:56,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:07:56,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:07:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:07:56,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:07:56,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:07:56,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27132830] [2023-12-02 16:07:56,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27132830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:07:56,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:07:56,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:07:56,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163109213] [2023-12-02 16:07:56,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:07:56,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:07:56,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:07:56,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:07:56,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:07:56,843 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:07:56,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:07:56,862 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2023-12-02 16:07:56,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:07:56,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-12-02 16:07:56,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:07:56,864 INFO L225 Difference]: With dead ends: 20 [2023-12-02 16:07:56,864 INFO L226 Difference]: Without dead ends: 19 [2023-12-02 16:07:56,864 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 [2023-12-02 16:07:56,866 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:07:56,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 26 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:07:56,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-12-02 16:07:56,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-12-02 16:07:56,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 16:07:56,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2023-12-02 16:07:56,871 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 15 [2023-12-02 16:07:56,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:07:56,872 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2023-12-02 16:07:56,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:07:56,872 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2023-12-02 16:07:56,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 16:07:56,873 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:07:56,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:07:56,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 16:07:56,874 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 16:07:56,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:07:56,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1003750545, now seen corresponding path program 1 times [2023-12-02 16:07:56,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:07:56,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5341052] [2023-12-02 16:07:56,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:07:56,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:07:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:07:57,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:07:57,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:07:57,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5341052] [2023-12-02 16:07:57,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5341052] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:07:57,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:07:57,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:07:57,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17691710] [2023-12-02 16:07:57,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:07:57,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:07:57,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:07:57,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:07:57,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:07:57,080 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:07:57,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:07:57,118 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2023-12-02 16:07:57,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:07:57,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-12-02 16:07:57,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:07:57,119 INFO L225 Difference]: With dead ends: 19 [2023-12-02 16:07:57,120 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 16:07:57,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:07:57,121 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:07:57,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 32 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:07:57,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 16:07:57,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 16:07:57,123 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) [2023-12-02 16:07:57,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 16:07:57,123 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2023-12-02 16:07:57,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:07:57,123 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 16:07:57,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 16:07:57,124 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 16:07:57,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 16:07:57,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-12-02 16:07:57,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-12-02 16:07:57,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-12-02 16:07:57,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-12-02 16:07:57,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 16:07:57,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 16:07:57,151 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-12-02 16:07:57,151 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-12-02 16:07:57,152 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-12-02 16:07:57,152 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-12-02 16:07:57,152 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1562) no Hoare annotation was computed. [2023-12-02 16:07:57,152 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 16:07:57,152 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1593) no Hoare annotation was computed. [2023-12-02 16:07:57,152 INFO L895 garLoopResultBuilder]: At program point L1584(line 1584) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G_~data~4#1| 2147483647) (= |ULTIMATE.start_goodB2G_~dataPtr1~1#1.offset| |ULTIMATE.start_goodB2G_~dataPtr2~1#1.offset|) (= |ULTIMATE.start_goodB2G_~dataPtr2~1#1.base| |ULTIMATE.start_goodB2G_~dataPtr1~1#1.base|)) [2023-12-02 16:07:57,153 INFO L899 garLoopResultBuilder]: For program point L1584-1(line 1584) no Hoare annotation was computed. [2023-12-02 16:07:57,153 INFO L902 garLoopResultBuilder]: At program point L1613(line 1613) the Hoare annotation is: true [2023-12-02 16:07:57,153 INFO L899 garLoopResultBuilder]: For program point L1613-1(line 1613) no Hoare annotation was computed. [2023-12-02 16:07:57,153 INFO L902 garLoopResultBuilder]: At program point L1611(line 1611) the Hoare annotation is: true [2023-12-02 16:07:57,153 INFO L899 garLoopResultBuilder]: For program point L1611-1(line 1611) no Hoare annotation was computed. [2023-12-02 16:07:57,153 INFO L899 garLoopResultBuilder]: For program point L1578(lines 1578 1585) no Hoare annotation was computed. [2023-12-02 16:07:57,154 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 16:07:57,154 INFO L899 garLoopResultBuilder]: For program point L1578-2(lines 1578 1585) no Hoare annotation was computed. [2023-12-02 16:07:57,154 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1562) no Hoare annotation was computed. [2023-12-02 16:07:57,154 INFO L902 garLoopResultBuilder]: At program point L1599(line 1599) the Hoare annotation is: true [2023-12-02 16:07:57,154 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1593) no Hoare annotation was computed. [2023-12-02 16:07:57,154 INFO L899 garLoopResultBuilder]: For program point L1599-1(line 1599) no Hoare annotation was computed. [2023-12-02 16:07:57,154 INFO L895 garLoopResultBuilder]: At program point L1564(line 1564) the Hoare annotation is: (<= (+ |ULTIMATE.start_goodG2B_~data~2#1| 2) 0) [2023-12-02 16:07:57,155 INFO L899 garLoopResultBuilder]: For program point L1564-1(line 1564) no Hoare annotation was computed. [2023-12-02 16:07:57,155 INFO L902 garLoopResultBuilder]: At program point L1595(line 1595) the Hoare annotation is: true [2023-12-02 16:07:57,155 INFO L899 garLoopResultBuilder]: For program point L1562(line 1562) no Hoare annotation was computed. [2023-12-02 16:07:57,155 INFO L899 garLoopResultBuilder]: For program point L1595-1(line 1595) no Hoare annotation was computed. [2023-12-02 16:07:57,155 INFO L899 garLoopResultBuilder]: For program point L1562-1(line 1562) no Hoare annotation was computed. [2023-12-02 16:07:57,155 INFO L899 garLoopResultBuilder]: For program point L1593(line 1593) no Hoare annotation was computed. [2023-12-02 16:07:57,155 INFO L899 garLoopResultBuilder]: For program point L1593-1(line 1593) no Hoare annotation was computed. [2023-12-02 16:07:57,156 INFO L899 garLoopResultBuilder]: For program point L1591(lines 1591 1600) no Hoare annotation was computed. [2023-12-02 16:07:57,156 INFO L899 garLoopResultBuilder]: For program point L1591-2(lines 1591 1600) no Hoare annotation was computed. [2023-12-02 16:07:57,159 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-02 16:07:57,161 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:07:57,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:07:57 BoogieIcfgContainer [2023-12-02 16:07:57,166 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:07:57,167 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:07:57,167 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:07:57,167 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:07:57,168 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:07:55" (3/4) ... [2023-12-02 16:07:57,170 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 16:07:57,173 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-12-02 16:07:57,173 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-12-02 16:07:57,179 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2023-12-02 16:07:57,179 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-12-02 16:07:57,179 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-02 16:07:57,180 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 16:07:57,272 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 16:07:57,273 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 16:07:57,273 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:07:57,274 INFO L158 Benchmark]: Toolchain (without parser) took 3022.43ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 87.6MB in the beginning and 125.5MB in the end (delta: -37.9MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2023-12-02 16:07:57,274 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory was 110.4MB in the beginning and 110.4MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:07:57,274 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1194.99ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 87.2MB in the beginning and 108.2MB in the end (delta: -21.0MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2023-12-02 16:07:57,275 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.17ms. Allocated memory is still 184.5MB. Free memory was 108.2MB in the beginning and 105.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 16:07:57,275 INFO L158 Benchmark]: Boogie Preprocessor took 31.80ms. Allocated memory is still 184.5MB. Free memory was 105.1MB in the beginning and 104.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:07:57,276 INFO L158 Benchmark]: RCFGBuilder took 418.46ms. Allocated memory is still 184.5MB. Free memory was 104.0MB in the beginning and 85.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 16:07:57,276 INFO L158 Benchmark]: TraceAbstraction took 1199.43ms. Allocated memory is still 184.5MB. Free memory was 84.1MB in the beginning and 130.8MB in the end (delta: -46.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:07:57,277 INFO L158 Benchmark]: Witness Printer took 106.08ms. Allocated memory is still 184.5MB. Free memory was 130.8MB in the beginning and 125.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 16:07:57,279 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory was 110.4MB in the beginning and 110.4MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1194.99ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 87.2MB in the beginning and 108.2MB in the end (delta: -21.0MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.17ms. Allocated memory is still 184.5MB. Free memory was 108.2MB in the beginning and 105.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.80ms. Allocated memory is still 184.5MB. Free memory was 105.1MB in the beginning and 104.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 418.46ms. Allocated memory is still 184.5MB. Free memory was 104.0MB in the beginning and 85.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1199.43ms. Allocated memory is still 184.5MB. Free memory was 84.1MB in the beginning and 130.8MB in the end (delta: -46.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 106.08ms. Allocated memory is still 184.5MB. Free memory was 130.8MB in the beginning and 125.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 1562]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1562]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: 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 3 procedures, 30 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 66 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 21 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 77 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-02 16:07:57,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09aec437-3fab-409d-8843-1d64cf466904/bin/utaipan-verify-nQ1chXbOIh/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