./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_rand_preinc_41_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/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_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_rand_preinc_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/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_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/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 43823a0090a39083b5ffe3fe5b19edcbdf683b92c791f7bcce46328f6e3f4c6f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:39:06,472 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:39:06,538 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 16:39:06,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:39:06,544 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:39:06,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:39:06,570 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:39:06,570 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:39:06,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:39:06,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:39:06,572 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:39:06,573 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:39:06,573 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:39:06,574 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:39:06,574 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:39:06,575 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:39:06,575 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:39:06,576 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:39:06,576 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:39:06,577 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:39:06,577 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:39:06,580 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:39:06,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:39:06,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:39:06,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:39:06,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:39:06,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:39:06,583 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:39:06,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:39:06,584 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 16:39:06,584 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 16:39:06,585 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:39:06,585 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:39:06,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:39:06,586 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:39:06,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:39:06,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:39:06,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:39:06,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:39:06,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:39:06,587 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:39:06,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:39:06,587 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:39:06,587 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:39:06,588 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:39:06,588 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:39:06,588 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_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43823a0090a39083b5ffe3fe5b19edcbdf683b92c791f7bcce46328f6e3f4c6f [2023-12-02 16:39:06,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:39:06,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:39:06,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:39:06,833 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:39:06,833 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:39:06,834 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_rand_preinc_41_bad.i [2023-12-02 16:39:09,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:39:09,834 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:39:09,835 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_rand_preinc_41_bad.i [2023-12-02 16:39:09,858 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/data/8aed5da7f/ca3efe11ca2843b2a7fb67c067633976/FLAG35377b7be [2023-12-02 16:39:09,872 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/data/8aed5da7f/ca3efe11ca2843b2a7fb67c067633976 [2023-12-02 16:39:09,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:39:09,876 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:39:09,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:39:09,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:39:09,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:39:09,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:39:09" (1/1) ... [2023-12-02 16:39:09,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9beb413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:09, skipping insertion in model container [2023-12-02 16:39:09,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:39:09" (1/1) ... [2023-12-02 16:39:09,948 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:39:10,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:39:10,780 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:39:10,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:39:11,041 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:39:11,041 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:39:11,041 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:39:11,041 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:39:11,049 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:39:11,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:11 WrapperNode [2023-12-02 16:39:11,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:39:11,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:39:11,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:39:11,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:39:11,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:11" (1/1) ... [2023-12-02 16:39:11,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:11" (1/1) ... [2023-12-02 16:39:11,104 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 94 [2023-12-02 16:39:11,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:39:11,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:39:11,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:39:11,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:39:11,112 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:11" (1/1) ... [2023-12-02 16:39:11,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:11" (1/1) ... [2023-12-02 16:39:11,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:11" (1/1) ... [2023-12-02 16:39:11,115 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:11" (1/1) ... [2023-12-02 16:39:11,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:11" (1/1) ... [2023-12-02 16:39:11,124 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:11" (1/1) ... [2023-12-02 16:39:11,126 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:11" (1/1) ... [2023-12-02 16:39:11,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:11" (1/1) ... [2023-12-02 16:39:11,130 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:39:11,131 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:39:11,131 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:39:11,131 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:39:11,132 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:11" (1/1) ... [2023-12-02 16:39:11,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:39:11,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:39:11,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:39:11,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:39:11,192 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 16:39:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 16:39:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:39:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:39:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:39:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 16:39:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:39:11,334 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:39:11,336 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:39:11,500 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:39:11,663 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:39:11,664 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 16:39:11,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:39:11 BoogieIcfgContainer [2023-12-02 16:39:11,666 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:39:11,668 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:39:11,668 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:39:11,672 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:39:11,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:39:09" (1/3) ... [2023-12-02 16:39:11,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5711aa9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:39:11, skipping insertion in model container [2023-12-02 16:39:11,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:11" (2/3) ... [2023-12-02 16:39:11,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5711aa9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:39:11, skipping insertion in model container [2023-12-02 16:39:11,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:39:11" (3/3) ... [2023-12-02 16:39:11,674 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_rand_preinc_41_bad.i [2023-12-02 16:39:11,694 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:39:11,694 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 16:39:11,741 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:39:11,748 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;@4834bc7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:39:11,748 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 16:39:11,752 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:39:11,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 16:39:11,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:39:11,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 16:39:11,760 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 16:39:11,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:39:11,767 INFO L85 PathProgramCache]: Analyzing trace with hash -216862121, now seen corresponding path program 1 times [2023-12-02 16:39:11,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:39:11,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458457155] [2023-12-02 16:39:11,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:39:11,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:39:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:39:12,202 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 16:39:12,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:39:12,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458457155] [2023-12-02 16:39:12,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458457155] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:39:12,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:39:12,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:39:12,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106755119] [2023-12-02 16:39:12,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:39:12,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:39:12,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:39:12,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:39:12,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:39:12,242 INFO L87 Difference]: Start difference. First operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 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 16:39:12,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:39:12,300 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2023-12-02 16:39:12,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:39:12,302 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 16:39:12,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:39:12,309 INFO L225 Difference]: With dead ends: 12 [2023-12-02 16:39:12,309 INFO L226 Difference]: Without dead ends: 8 [2023-12-02 16:39:12,312 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 16:39:12,315 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 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 16:39:12,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:39:12,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-12-02 16:39:12,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-12-02 16:39:12,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 16:39:12,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2023-12-02 16:39:12,349 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 6 [2023-12-02 16:39:12,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:39:12,350 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2023-12-02 16:39:12,350 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 16:39:12,350 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2023-12-02 16:39:12,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 16:39:12,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:39:12,351 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:39:12,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:39:12,351 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 16:39:12,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:39:12,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1867208962, now seen corresponding path program 1 times [2023-12-02 16:39:12,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:39:12,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569414420] [2023-12-02 16:39:12,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:39:12,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:39:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:39:12,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:39:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:39:12,563 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:39:12,564 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:39:12,565 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 16:39:12,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 16:39:12,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 16:39:12,572 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-02 16:39:12,575 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:39:12,590 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet112 [2023-12-02 16:39:12,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:39:12 BoogieIcfgContainer [2023-12-02 16:39:12,600 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:39:12,600 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:39:12,600 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:39:12,601 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:39:12,601 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:39:11" (3/4) ... [2023-12-02 16:39:12,603 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:39:12,604 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:39:12,605 INFO L158 Benchmark]: Toolchain (without parser) took 2729.09ms. Allocated memory was 165.7MB in the beginning and 205.5MB in the end (delta: 39.8MB). Free memory was 122.2MB in the beginning and 130.3MB in the end (delta: -8.1MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2023-12-02 16:39:12,606 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 98.6MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:39:12,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1172.88ms. Allocated memory was 165.7MB in the beginning and 205.5MB in the end (delta: 39.8MB). Free memory was 121.7MB in the beginning and 150.2MB in the end (delta: -28.4MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. [2023-12-02 16:39:12,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.37ms. Allocated memory is still 205.5MB. Free memory was 150.2MB in the beginning and 147.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 16:39:12,607 INFO L158 Benchmark]: Boogie Preprocessor took 25.64ms. Allocated memory is still 205.5MB. Free memory was 147.0MB in the beginning and 146.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:39:12,608 INFO L158 Benchmark]: RCFGBuilder took 534.71ms. Allocated memory is still 205.5MB. Free memory was 146.0MB in the beginning and 109.3MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-12-02 16:39:12,609 INFO L158 Benchmark]: TraceAbstraction took 931.48ms. Allocated memory is still 205.5MB. Free memory was 108.2MB in the beginning and 130.3MB in the end (delta: -22.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:39:12,609 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 205.5MB. Free memory is still 130.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:39:12,612 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 98.6MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1172.88ms. Allocated memory was 165.7MB in the beginning and 205.5MB in the end (delta: 39.8MB). Free memory was 121.7MB in the beginning and 150.2MB in the end (delta: -28.4MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.37ms. Allocated memory is still 205.5MB. Free memory was 150.2MB in the beginning and 147.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.64ms. Allocated memory is still 205.5MB. Free memory was 147.0MB in the beginning and 146.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 534.71ms. Allocated memory is still 205.5MB. Free memory was 146.0MB in the beginning and 109.3MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 931.48ms. Allocated memory is still 205.5MB. Free memory was 108.2MB in the beginning and 130.3MB in the end (delta: -22.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 205.5MB. Free memory is still 130.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet112 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1566, overapproximation of bitwiseOr at line 1560. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1566] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1566] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=6442450944, argc=6442450944, argv={6442450946:6442450945}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] CALL CWE190_Integer_Overflow__int_rand_preinc_41_bad() [L1558] int data; [L1559] data = 0 [L1560] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1560] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1560] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1560] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1560] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1561] CALL badSink(data) [L1551] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 16:39:12,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/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_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_rand_preinc_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/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 43823a0090a39083b5ffe3fe5b19edcbdf683b92c791f7bcce46328f6e3f4c6f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:39:14,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:39:14,641 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-12-02 16:39:14,645 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:39:14,646 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:39:14,673 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:39:14,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:39:14,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:39:14,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:39:14,675 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:39:14,675 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:39:14,676 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:39:14,676 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:39:14,677 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:39:14,677 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:39:14,678 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:39:14,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:39:14,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:39:14,680 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:39:14,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:39:14,681 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:39:14,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:39:14,682 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 16:39:14,682 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 16:39:14,683 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 16:39:14,683 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 16:39:14,684 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 16:39:14,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:39:14,684 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:39:14,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:39:14,685 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 16:39:14,686 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:39:14,686 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:39:14,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:39:14,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:39:14,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:39:14,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:39:14,687 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 16:39:14,687 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 16:39:14,687 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:39:14,688 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:39:14,688 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:39:14,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:39:14,688 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43823a0090a39083b5ffe3fe5b19edcbdf683b92c791f7bcce46328f6e3f4c6f [2023-12-02 16:39:14,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:39:15,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:39:15,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:39:15,004 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:39:15,005 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:39:15,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_rand_preinc_41_bad.i [2023-12-02 16:39:17,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:39:18,158 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:39:18,159 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_rand_preinc_41_bad.i [2023-12-02 16:39:18,184 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/data/c8cd13f17/2d105e48811c42caa2e0446644d16106/FLAG053180ec4 [2023-12-02 16:39:18,198 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/data/c8cd13f17/2d105e48811c42caa2e0446644d16106 [2023-12-02 16:39:18,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:39:18,202 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:39:18,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:39:18,204 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:39:18,209 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:39:18,210 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:39:18" (1/1) ... [2023-12-02 16:39:18,211 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e3841a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:18, skipping insertion in model container [2023-12-02 16:39:18,211 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:39:18" (1/1) ... [2023-12-02 16:39:18,273 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:39:19,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:39:19,083 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:39:19,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:39:19,305 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:39:19,305 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:39:19,305 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:39:19,305 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:39:19,313 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:39:19,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:19 WrapperNode [2023-12-02 16:39:19,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:39:19,314 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:39:19,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:39:19,314 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:39:19,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:19" (1/1) ... [2023-12-02 16:39:19,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:19" (1/1) ... [2023-12-02 16:39:19,373 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2023-12-02 16:39:19,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:39:19,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:39:19,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:39:19,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:39:19,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:19" (1/1) ... [2023-12-02 16:39:19,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:19" (1/1) ... [2023-12-02 16:39:19,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:19" (1/1) ... [2023-12-02 16:39:19,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:19" (1/1) ... [2023-12-02 16:39:19,398 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:19" (1/1) ... [2023-12-02 16:39:19,400 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:19" (1/1) ... [2023-12-02 16:39:19,403 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:19" (1/1) ... [2023-12-02 16:39:19,405 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:19" (1/1) ... [2023-12-02 16:39:19,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:39:19,411 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:39:19,411 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:39:19,411 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:39:19,412 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:19" (1/1) ... [2023-12-02 16:39:19,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:39:19,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:39:19,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:39:19,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:39:19,477 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 16:39:19,477 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 16:39:19,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 16:39:19,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:39:19,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:39:19,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:39:19,478 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 16:39:19,620 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:39:19,622 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:39:19,751 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:39:19,784 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:39:19,784 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 16:39:19,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:39:19 BoogieIcfgContainer [2023-12-02 16:39:19,785 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:39:19,786 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:39:19,787 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:39:19,789 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:39:19,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:39:18" (1/3) ... [2023-12-02 16:39:19,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2745abdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:39:19, skipping insertion in model container [2023-12-02 16:39:19,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:39:19" (2/3) ... [2023-12-02 16:39:19,791 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2745abdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:39:19, skipping insertion in model container [2023-12-02 16:39:19,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:39:19" (3/3) ... [2023-12-02 16:39:19,792 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_rand_preinc_41_bad.i [2023-12-02 16:39:19,807 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:39:19,808 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 16:39:19,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:39:19,850 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;@578344f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:39:19,850 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 16:39:19,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 16:39:19,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 16:39:19,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:39:19,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:39:19,861 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 16:39:19,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:39:19,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1302384734, now seen corresponding path program 1 times [2023-12-02 16:39:19,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:39:19,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547186606] [2023-12-02 16:39:19,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:39:19,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:39:19,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:39:19,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:39:19,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 16:39:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:39:19,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 16:39:19,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:39:20,011 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 16:39:20,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:39:20,012 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:39:20,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547186606] [2023-12-02 16:39:20,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547186606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:39:20,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:39:20,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 16:39:20,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602951262] [2023-12-02 16:39:20,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:39:20,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:39:20,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:39:20,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:39:20,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:39:20,044 INFO L87 Difference]: Start difference. First operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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 16:39:20,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:39:20,066 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2023-12-02 16:39:20,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:39:20,068 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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 10 [2023-12-02 16:39:20,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:39:20,074 INFO L225 Difference]: With dead ends: 16 [2023-12-02 16:39:20,074 INFO L226 Difference]: Without dead ends: 12 [2023-12-02 16:39:20,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:39:20,079 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:39:20,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:39:20,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-02 16:39:20,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-12-02 16:39:20,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 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 16:39:20,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2023-12-02 16:39:20,106 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2023-12-02 16:39:20,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:39:20,107 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-12-02 16:39:20,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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 16:39:20,107 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-12-02 16:39:20,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 16:39:20,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:39:20,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:39:20,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:39:20,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:39:20,309 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 16:39:20,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:39:20,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1719221037, now seen corresponding path program 1 times [2023-12-02 16:39:20,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:39:20,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737790897] [2023-12-02 16:39:20,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:39:20,311 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:39:20,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:39:20,312 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:39:20,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 16:39:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:39:20,391 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:39:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:39:20,446 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 16:39:20,447 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:39:20,449 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 16:39:20,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 16:39:20,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 16:39:20,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:39:20,658 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-02 16:39:20,661 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:39:20,685 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet106 [2023-12-02 16:39:20,687 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite104 could not be translated [2023-12-02 16:39:20,688 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated [2023-12-02 16:39:20,688 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet97 could not be translated [2023-12-02 16:39:20,688 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated [2023-12-02 16:39:20,688 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet103 could not be translated [2023-12-02 16:39:20,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:39:20 BoogieIcfgContainer [2023-12-02 16:39:20,697 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:39:20,698 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:39:20,698 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:39:20,698 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:39:20,698 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:39:19" (3/4) ... [2023-12-02 16:39:20,700 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:39:20,701 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:39:20,701 INFO L158 Benchmark]: Toolchain (without parser) took 2498.93ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 79.9MB in the beginning and 99.7MB in the end (delta: -19.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-12-02 16:39:20,702 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 75.5MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:39:20,703 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1109.71ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 65.5MB in the end (delta: 14.2MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2023-12-02 16:39:20,703 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.56ms. Allocated memory is still 107.0MB. Free memory was 65.5MB in the beginning and 62.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:39:20,704 INFO L158 Benchmark]: Boogie Preprocessor took 36.15ms. Allocated memory is still 107.0MB. Free memory was 62.6MB in the beginning and 60.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:39:20,704 INFO L158 Benchmark]: RCFGBuilder took 373.76ms. Allocated memory is still 107.0MB. Free memory was 60.5MB in the beginning and 75.0MB in the end (delta: -14.5MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2023-12-02 16:39:20,705 INFO L158 Benchmark]: TraceAbstraction took 910.47ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 74.4MB in the beginning and 100.4MB in the end (delta: -26.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-12-02 16:39:20,706 INFO L158 Benchmark]: Witness Printer took 3.17ms. Allocated memory is still 130.0MB. Free memory is still 99.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:39:20,709 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 75.5MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1109.71ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 65.5MB in the end (delta: 14.2MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.56ms. Allocated memory is still 107.0MB. Free memory was 65.5MB in the beginning and 62.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.15ms. Allocated memory is still 107.0MB. Free memory was 62.6MB in the beginning and 60.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 373.76ms. Allocated memory is still 107.0MB. Free memory was 60.5MB in the beginning and 75.0MB in the end (delta: -14.5MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * TraceAbstraction took 910.47ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 74.4MB in the beginning and 100.4MB in the end (delta: -26.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 3.17ms. Allocated memory is still 130.0MB. Free memory is still 99.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet106 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite104 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet97 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet103 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1566. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1566] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1566] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] CALL CWE190_Integer_Overflow__int_rand_preinc_41_bad() [L1558] int data; [L1559] data = 0 [L1560] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1560] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1561] CALL badSink(data) [L1551] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 16:39:20,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64f6d4f-446c-42f5-a2cf-cd1b690f18d0/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: UNKNOWN: Overapproximated counterexample