./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_04_good.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_fe71ef11-b2c5-4cad-a770-21748d0af89a/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe71ef11-b2c5-4cad-a770-21748d0af89a/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_fe71ef11-b2c5-4cad-a770-21748d0af89a/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe71ef11-b2c5-4cad-a770-21748d0af89a/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_04_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe71ef11-b2c5-4cad-a770-21748d0af89a/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_fe71ef11-b2c5-4cad-a770-21748d0af89a/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 5ac49e246ef6e57eac4d8b67d1692efdce59582a771daf5619e79bb61725ee9e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:54:26,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:54:26,449 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe71ef11-b2c5-4cad-a770-21748d0af89a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 12:54:26,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:54:26,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:54:26,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:54:26,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:54:26,480 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:54:26,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:54:26,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:54:26,482 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:54:26,483 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:54:26,483 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:54:26,484 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:54:26,484 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:54:26,485 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:54:26,485 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:54:26,485 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:54:26,486 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:54:26,486 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:54:26,487 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:54:26,487 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:54:26,488 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:54:26,489 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:54:26,489 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:54:26,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:54:26,490 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:54:26,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:54:26,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:54:26,491 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 12:54:26,491 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 12:54:26,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:54:26,492 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:54:26,493 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:54:26,493 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:54:26,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:54:26,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:54:26,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:54:26,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:54:26,495 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:54:26,495 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:54:26,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:54:26,495 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:54:26,495 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:54:26,496 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:54:26,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:54:26,496 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_fe71ef11-b2c5-4cad-a770-21748d0af89a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe71ef11-b2c5-4cad-a770-21748d0af89a/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ac49e246ef6e57eac4d8b67d1692efdce59582a771daf5619e79bb61725ee9e [2023-12-02 12:54:26,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:54:26,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:54:26,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:54:26,742 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:54:26,742 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:54:26,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe71ef11-b2c5-4cad-a770-21748d0af89a/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_04_good.i [2023-12-02 12:54:29,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:54:29,872 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:54:29,872 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe71ef11-b2c5-4cad-a770-21748d0af89a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_04_good.i [2023-12-02 12:54:29,894 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe71ef11-b2c5-4cad-a770-21748d0af89a/bin/utaipan-verify-nQ1chXbOIh/data/9b867b444/98323d22a7e7400488dd0dbebd5da208/FLAG73bc15247 [2023-12-02 12:54:29,906 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe71ef11-b2c5-4cad-a770-21748d0af89a/bin/utaipan-verify-nQ1chXbOIh/data/9b867b444/98323d22a7e7400488dd0dbebd5da208 [2023-12-02 12:54:29,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:54:29,910 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:54:29,911 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:54:29,911 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:54:29,916 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:54:29,916 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:54:29" (1/1) ... [2023-12-02 12:54:29,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eeb3426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:29, skipping insertion in model container [2023-12-02 12:54:29,917 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:54:29" (1/1) ... [2023-12-02 12:54:29,973 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:54:30,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:54:30,692 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:54:30,781 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:54:30,874 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:54:30,874 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:54:30,874 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:54:30,874 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:54:30,874 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:54:30,881 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:54:30,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:30 WrapperNode [2023-12-02 12:54:30,881 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:54:30,882 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:54:30,882 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:54:30,882 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:54:30,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:30" (1/1) ... [2023-12-02 12:54:30,936 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:30" (1/1) ... [2023-12-02 12:54:30,964 INFO L138 Inliner]: procedures = 503, calls = 86, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 141 [2023-12-02 12:54:30,964 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:54:30,965 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:54:30,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:54:30,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:54:30,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:30" (1/1) ... [2023-12-02 12:54:30,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:30" (1/1) ... [2023-12-02 12:54:30,978 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:30" (1/1) ... [2023-12-02 12:54:30,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:30" (1/1) ... [2023-12-02 12:54:30,986 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:30" (1/1) ... [2023-12-02 12:54:30,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:30" (1/1) ... [2023-12-02 12:54:30,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:30" (1/1) ... [2023-12-02 12:54:30,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:30" (1/1) ... [2023-12-02 12:54:30,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:54:30,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:54:30,997 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:54:30,997 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:54:30,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:30" (1/1) ... [2023-12-02 12:54:31,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:54:31,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe71ef11-b2c5-4cad-a770-21748d0af89a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:54:31,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe71ef11-b2c5-4cad-a770-21748d0af89a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:54:31,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe71ef11-b2c5-4cad-a770-21748d0af89a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:54:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-02 12:54:31,075 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-02 12:54:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-02 12:54:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 12:54:31,076 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 12:54:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 12:54:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 12:54:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:54:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:54:31,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:54:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 12:54:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 12:54:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:54:31,241 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:54:31,244 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:54:31,446 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:54:31,493 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:54:31,493 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 12:54:31,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:54:31 BoogieIcfgContainer [2023-12-02 12:54:31,495 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:54:31,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:54:31,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:54:31,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:54:31,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:54:29" (1/3) ... [2023-12-02 12:54:31,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c681dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:54:31, skipping insertion in model container [2023-12-02 12:54:31,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:30" (2/3) ... [2023-12-02 12:54:31,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c681dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:54:31, skipping insertion in model container [2023-12-02 12:54:31,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:54:31" (3/3) ... [2023-12-02 12:54:31,504 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_04_good.i [2023-12-02 12:54:31,523 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:54:31,523 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-12-02 12:54:31,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:54:31,577 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;@480b86f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:54:31,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-12-02 12:54:31,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 40 states have (on average 1.475) internal successors, (59), 48 states have internal predecessors, (59), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-02 12:54:31,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 12:54:31,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:31,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:31,590 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 12:54:31,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:31,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1506465904, now seen corresponding path program 1 times [2023-12-02 12:54:31,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:31,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187389140] [2023-12-02 12:54:31,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:31,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:31,869 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 12:54:31,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:31,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187389140] [2023-12-02 12:54:31,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187389140] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:31,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:31,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:54:31,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281711047] [2023-12-02 12:54:31,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:31,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:54:31,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:31,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:54:31,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:54:31,909 INFO L87 Difference]: Start difference. First operand has 63 states, 40 states have (on average 1.475) internal successors, (59), 48 states have internal predecessors, (59), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 12:54:31,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:31,968 INFO L93 Difference]: Finished difference Result 118 states and 154 transitions. [2023-12-02 12:54:31,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:54:31,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 9 [2023-12-02 12:54:31,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:31,978 INFO L225 Difference]: With dead ends: 118 [2023-12-02 12:54:31,978 INFO L226 Difference]: Without dead ends: 57 [2023-12-02 12:54:31,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 12:54:31,984 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 75 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:31,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 67 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:54:32,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-12-02 12:54:32,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-12-02 12:54:32,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 44 states have internal predecessors, (50), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 12:54:32,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 70 transitions. [2023-12-02 12:54:32,028 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 70 transitions. Word has length 9 [2023-12-02 12:54:32,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:32,030 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 70 transitions. [2023-12-02 12:54:32,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 12:54:32,030 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 70 transitions. [2023-12-02 12:54:32,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 12:54:32,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:32,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:32,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 12:54:32,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 12:54:32,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:32,033 INFO L85 PathProgramCache]: Analyzing trace with hash -20331883, now seen corresponding path program 1 times [2023-12-02 12:54:32,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:32,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746098454] [2023-12-02 12:54:32,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:32,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:32,141 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 12:54:32,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:32,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746098454] [2023-12-02 12:54:32,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746098454] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:32,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:32,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 12:54:32,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051590786] [2023-12-02 12:54:32,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:32,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:54:32,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:32,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:54:32,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:54:32,145 INFO L87 Difference]: Start difference. First operand 57 states and 70 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 12:54:32,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:32,171 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2023-12-02 12:54:32,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:54:32,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 11 [2023-12-02 12:54:32,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:32,173 INFO L225 Difference]: With dead ends: 57 [2023-12-02 12:54:32,173 INFO L226 Difference]: Without dead ends: 56 [2023-12-02 12:54:32,173 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 12:54:32,175 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 2 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:32,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 121 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:54:32,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-12-02 12:54:32,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-12-02 12:54:32,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 43 states have internal predecessors, (49), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 12:54:32,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2023-12-02 12:54:32,186 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 11 [2023-12-02 12:54:32,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:32,186 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2023-12-02 12:54:32,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 12:54:32,187 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2023-12-02 12:54:32,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 12:54:32,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:32,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:32,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 12:54:32,188 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 12:54:32,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:32,189 INFO L85 PathProgramCache]: Analyzing trace with hash -630288300, now seen corresponding path program 1 times [2023-12-02 12:54:32,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:32,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15032211] [2023-12-02 12:54:32,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:32,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:32,282 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 12:54:32,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:32,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15032211] [2023-12-02 12:54:32,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15032211] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:32,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:32,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:54:32,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301303816] [2023-12-02 12:54:32,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:32,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:54:32,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:32,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:54:32,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:54:32,285 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 12:54:32,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:32,335 INFO L93 Difference]: Finished difference Result 56 states and 69 transitions. [2023-12-02 12:54:32,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:54:32,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 12 [2023-12-02 12:54:32,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:32,337 INFO L225 Difference]: With dead ends: 56 [2023-12-02 12:54:32,337 INFO L226 Difference]: Without dead ends: 55 [2023-12-02 12:54:32,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:54:32,339 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 10 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:32,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 162 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:54:32,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-12-02 12:54:32,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-12-02 12:54:32,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 42 states have internal predecessors, (48), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 12:54:32,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 68 transitions. [2023-12-02 12:54:32,377 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 68 transitions. Word has length 12 [2023-12-02 12:54:32,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:32,377 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 68 transitions. [2023-12-02 12:54:32,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 12:54:32,378 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2023-12-02 12:54:32,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 12:54:32,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:32,379 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:32,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 12:54:32,379 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 12:54:32,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:32,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2065519868, now seen corresponding path program 1 times [2023-12-02 12:54:32,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:32,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314048973] [2023-12-02 12:54:32,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:32,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:32,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 12:54:32,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:32,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314048973] [2023-12-02 12:54:32,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314048973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:32,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:32,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:54:32,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038558944] [2023-12-02 12:54:32,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:32,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:54:32,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:32,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:54:32,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:54:32,440 INFO L87 Difference]: Start difference. First operand 55 states and 68 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 12:54:32,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:32,459 INFO L93 Difference]: Finished difference Result 90 states and 107 transitions. [2023-12-02 12:54:32,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:54:32,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) Word has length 20 [2023-12-02 12:54:32,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:32,460 INFO L225 Difference]: With dead ends: 90 [2023-12-02 12:54:32,460 INFO L226 Difference]: Without dead ends: 51 [2023-12-02 12:54:32,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 12:54:32,462 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:32,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 54 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:54:32,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-12-02 12:54:32,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-12-02 12:54:32,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 40 states have internal predecessors, (44), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 12:54:32,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2023-12-02 12:54:32,471 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 20 [2023-12-02 12:54:32,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:32,472 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 60 transitions. [2023-12-02 12:54:32,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 12:54:32,472 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2023-12-02 12:54:32,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 12:54:32,473 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:32,473 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:32,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 12:54:32,474 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 12:54:32,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:32,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1893191958, now seen corresponding path program 1 times [2023-12-02 12:54:32,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:32,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689964952] [2023-12-02 12:54:32,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:32,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:32,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 12:54:32,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:32,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689964952] [2023-12-02 12:54:32,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689964952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:32,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:32,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 12:54:32,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724255468] [2023-12-02 12:54:32,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:32,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:54:32,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:32,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:54:32,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:54:32,542 INFO L87 Difference]: Start difference. First operand 51 states and 60 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 12:54:32,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:32,564 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2023-12-02 12:54:32,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:54:32,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 21 [2023-12-02 12:54:32,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:32,566 INFO L225 Difference]: With dead ends: 51 [2023-12-02 12:54:32,566 INFO L226 Difference]: Without dead ends: 50 [2023-12-02 12:54:32,566 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 12:54:32,567 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 2 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:32,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 101 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:54:32,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-02 12:54:32,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-12-02 12:54:32,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 39 states have internal predecessors, (43), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 12:54:32,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2023-12-02 12:54:32,576 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 21 [2023-12-02 12:54:32,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:32,576 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2023-12-02 12:54:32,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 12:54:32,576 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2023-12-02 12:54:32,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 12:54:32,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:32,577 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:32,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 12:54:32,578 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 12:54:32,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:32,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1440591552, now seen corresponding path program 1 times [2023-12-02 12:54:32,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:32,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287558381] [2023-12-02 12:54:32,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:32,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:32,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 12:54:32,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:32,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287558381] [2023-12-02 12:54:32,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287558381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:32,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:32,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:54:32,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516429510] [2023-12-02 12:54:32,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:32,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:54:32,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:32,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:54:32,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:54:32,657 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 12:54:32,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:32,691 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2023-12-02 12:54:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:54:32,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 22 [2023-12-02 12:54:32,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:32,692 INFO L225 Difference]: With dead ends: 50 [2023-12-02 12:54:32,692 INFO L226 Difference]: Without dead ends: 49 [2023-12-02 12:54:32,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:54:32,694 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 8 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:32,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 135 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:54:32,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-12-02 12:54:32,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-12-02 12:54:32,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 35 states have (on average 1.2) internal successors, (42), 38 states have internal predecessors, (42), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 12:54:32,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2023-12-02 12:54:32,702 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 22 [2023-12-02 12:54:32,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:32,703 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2023-12-02 12:54:32,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 12:54:32,703 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2023-12-02 12:54:32,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 12:54:32,704 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:32,704 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:32,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 12:54:32,705 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 12:54:32,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:32,705 INFO L85 PathProgramCache]: Analyzing trace with hash -928663012, now seen corresponding path program 1 times [2023-12-02 12:54:32,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:32,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880604453] [2023-12-02 12:54:32,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:32,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:32,774 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 12:54:32,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:32,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880604453] [2023-12-02 12:54:32,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880604453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:32,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:32,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:54:32,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129448299] [2023-12-02 12:54:32,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:32,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:54:32,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:32,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:54:32,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:54:32,777 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 12:54:32,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:32,806 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2023-12-02 12:54:32,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:54:32,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-12-02 12:54:32,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:32,808 INFO L225 Difference]: With dead ends: 49 [2023-12-02 12:54:32,808 INFO L226 Difference]: Without dead ends: 48 [2023-12-02 12:54:32,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:54:32,809 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 5 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:32,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 144 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:54:32,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-12-02 12:54:32,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-12-02 12:54:32,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 37 states have internal predecessors, (41), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 12:54:32,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2023-12-02 12:54:32,816 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 28 [2023-12-02 12:54:32,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:32,817 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2023-12-02 12:54:32,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 12:54:32,817 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2023-12-02 12:54:32,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-02 12:54:32,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:32,818 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:32,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 12:54:32,818 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 12:54:32,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:32,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1276217832, now seen corresponding path program 1 times [2023-12-02 12:54:32,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:32,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805188012] [2023-12-02 12:54:32,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:32,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:32,886 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 12:54:32,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:32,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805188012] [2023-12-02 12:54:32,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805188012] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:32,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:32,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:54:32,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394987063] [2023-12-02 12:54:32,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:32,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 12:54:32,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:32,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 12:54:32,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 12:54:32,888 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 12:54:32,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:32,916 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2023-12-02 12:54:32,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 12:54:32,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2023-12-02 12:54:32,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:32,917 INFO L225 Difference]: With dead ends: 48 [2023-12-02 12:54:32,917 INFO L226 Difference]: Without dead ends: 47 [2023-12-02 12:54:32,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:54:32,918 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 3 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:32,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 142 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:54:32,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-12-02 12:54:32,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-12-02 12:54:32,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 36 states have internal predecessors, (40), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 12:54:32,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2023-12-02 12:54:32,925 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 29 [2023-12-02 12:54:32,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:32,926 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2023-12-02 12:54:32,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 12:54:32,926 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2023-12-02 12:54:32,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 12:54:32,927 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:32,928 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:32,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 12:54:32,928 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 12:54:32,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:32,928 INFO L85 PathProgramCache]: Analyzing trace with hash -245624308, now seen corresponding path program 1 times [2023-12-02 12:54:32,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:32,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095767888] [2023-12-02 12:54:32,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:32,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:33,060 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 12:54:33,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:33,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095767888] [2023-12-02 12:54:33,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095767888] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:33,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:33,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 12:54:33,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047072220] [2023-12-02 12:54:33,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:33,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:54:33,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:33,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:54:33,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:54:33,062 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 12:54:33,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:33,107 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2023-12-02 12:54:33,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 12:54:33,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2023-12-02 12:54:33,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:33,108 INFO L225 Difference]: With dead ends: 47 [2023-12-02 12:54:33,108 INFO L226 Difference]: Without dead ends: 46 [2023-12-02 12:54:33,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 12:54:33,109 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 37 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:33,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 132 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:54:33,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-12-02 12:54:33,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-12-02 12:54:33,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 35 states have (on average 1.1142857142857143) internal successors, (39), 35 states have internal predecessors, (39), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 12:54:33,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2023-12-02 12:54:33,117 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 36 [2023-12-02 12:54:33,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:33,117 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2023-12-02 12:54:33,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 12:54:33,117 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2023-12-02 12:54:33,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 12:54:33,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:33,119 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:33,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 12:54:33,119 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 12:54:33,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:33,119 INFO L85 PathProgramCache]: Analyzing trace with hash 975581195, now seen corresponding path program 1 times [2023-12-02 12:54:33,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:33,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435177551] [2023-12-02 12:54:33,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:33,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:33,233 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 12:54:33,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:33,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435177551] [2023-12-02 12:54:33,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435177551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:33,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:33,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 12:54:33,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032788728] [2023-12-02 12:54:33,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:33,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:54:33,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:33,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:54:33,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:54:33,236 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 12:54:33,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:33,277 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2023-12-02 12:54:33,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 12:54:33,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2023-12-02 12:54:33,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:33,279 INFO L225 Difference]: With dead ends: 46 [2023-12-02 12:54:33,279 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 12:54:33,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 12:54:33,280 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 33 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:33,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 132 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 12:54:33,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 12:54:33,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 12:54:33,281 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 12:54:33,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 12:54:33,281 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2023-12-02 12:54:33,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:33,282 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 12:54:33,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 12:54:33,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 12:54:33,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 12:54:33,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-12-02 12:54:33,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-12-02 12:54:33,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-12-02 12:54:33,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-12-02 12:54:33,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-12-02 12:54:33,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-12-02 12:54:33,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-12-02 12:54:33,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-12-02 12:54:33,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 12:54:33,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 12:54:33,361 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-12-02 12:54:33,361 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-12-02 12:54:33,361 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-12-02 12:54:33,361 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-12-02 12:54:33,361 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1608) no Hoare annotation was computed. [2023-12-02 12:54:33,362 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1650) no Hoare annotation was computed. [2023-12-02 12:54:33,362 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1576) no Hoare annotation was computed. [2023-12-02 12:54:33,362 INFO L895 garLoopResultBuilder]: At program point L1564(line 1564) the Hoare annotation is: (and (= ~STATIC_CONST_TRUE~0 1) (= ~STATIC_CONST_FALSE~0 0) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647)) [2023-12-02 12:54:33,362 INFO L899 garLoopResultBuilder]: For program point L1564-1(line 1564) no Hoare annotation was computed. [2023-12-02 12:54:33,362 INFO L899 garLoopResultBuilder]: For program point L1622(lines 1622 1629) no Hoare annotation was computed. [2023-12-02 12:54:33,362 INFO L899 garLoopResultBuilder]: For program point L1622-2(lines 1619 1638) no Hoare annotation was computed. [2023-12-02 12:54:33,362 INFO L895 garLoopResultBuilder]: At program point L1614(line 1614) the Hoare annotation is: (and (= ~STATIC_CONST_TRUE~0 1) (= ~STATIC_CONST_FALSE~0 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2023-12-02 12:54:33,363 INFO L899 garLoopResultBuilder]: For program point L1614-1(line 1614) no Hoare annotation was computed. [2023-12-02 12:54:33,363 INFO L899 garLoopResultBuilder]: For program point L1639(lines 1639 1655) no Hoare annotation was computed. [2023-12-02 12:54:33,363 INFO L899 garLoopResultBuilder]: For program point L1606(lines 1606 1615) no Hoare annotation was computed. [2023-12-02 12:54:33,363 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1576) no Hoare annotation was computed. [2023-12-02 12:54:33,363 INFO L899 garLoopResultBuilder]: For program point L1590(lines 1590 1603) no Hoare annotation was computed. [2023-12-02 12:54:33,363 INFO L899 garLoopResultBuilder]: For program point L1590-2(lines 1587 1617) no Hoare annotation was computed. [2023-12-02 12:54:33,363 INFO L895 garLoopResultBuilder]: At program point L1582(line 1582) the Hoare annotation is: (and (= ~STATIC_CONST_TRUE~0 1) (= ~STATIC_CONST_FALSE~0 0) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647)) [2023-12-02 12:54:33,363 INFO L899 garLoopResultBuilder]: For program point L1582-1(line 1582) no Hoare annotation was computed. [2023-12-02 12:54:33,363 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 12:54:33,363 INFO L899 garLoopResultBuilder]: For program point L1574(lines 1574 1583) no Hoare annotation was computed. [2023-12-02 12:54:33,364 INFO L899 garLoopResultBuilder]: For program point L1574-2(lines 1550 1585) no Hoare annotation was computed. [2023-12-02 12:54:33,364 INFO L895 garLoopResultBuilder]: At program point L1624(line 1624) the Hoare annotation is: false [2023-12-02 12:54:33,364 INFO L899 garLoopResultBuilder]: For program point L1624-1(line 1624) no Hoare annotation was computed. [2023-12-02 12:54:33,364 INFO L899 garLoopResultBuilder]: For program point L1558(lines 1558 1565) no Hoare annotation was computed. [2023-12-02 12:54:33,364 INFO L899 garLoopResultBuilder]: For program point L1558-2(lines 1558 1565) no Hoare annotation was computed. [2023-12-02 12:54:33,364 INFO L899 garLoopResultBuilder]: For program point L1608(line 1608) no Hoare annotation was computed. [2023-12-02 12:54:33,364 INFO L899 garLoopResultBuilder]: For program point L1608-1(line 1608) no Hoare annotation was computed. [2023-12-02 12:54:33,364 INFO L895 garLoopResultBuilder]: At program point L1666(line 1666) the Hoare annotation is: (and (= ~STATIC_CONST_TRUE~0 1) (= ~STATIC_CONST_FALSE~0 0)) [2023-12-02 12:54:33,364 INFO L899 garLoopResultBuilder]: For program point L1666-1(line 1666) no Hoare annotation was computed. [2023-12-02 12:54:33,364 INFO L899 garLoopResultBuilder]: For program point L1633(line 1633) no Hoare annotation was computed. [2023-12-02 12:54:33,365 INFO L895 garLoopResultBuilder]: At program point L1600(line 1600) the Hoare annotation is: (and (= ~STATIC_CONST_TRUE~0 1) (= ~STATIC_CONST_FALSE~0 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2023-12-02 12:54:33,365 INFO L899 garLoopResultBuilder]: For program point L1633-1(line 1633) no Hoare annotation was computed. [2023-12-02 12:54:33,365 INFO L899 garLoopResultBuilder]: For program point L1600-1(line 1600) no Hoare annotation was computed. [2023-12-02 12:54:33,365 INFO L899 garLoopResultBuilder]: For program point L1650(line 1650) no Hoare annotation was computed. [2023-12-02 12:54:33,365 INFO L899 garLoopResultBuilder]: For program point L1650-1(line 1650) no Hoare annotation was computed. [2023-12-02 12:54:33,365 INFO L899 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2023-12-02 12:54:33,365 INFO L899 garLoopResultBuilder]: For program point L1576-1(line 1576) no Hoare annotation was computed. [2023-12-02 12:54:33,365 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1633) no Hoare annotation was computed. [2023-12-02 12:54:33,365 INFO L899 garLoopResultBuilder]: For program point L1618(lines 1618 1638) no Hoare annotation was computed. [2023-12-02 12:54:33,366 INFO L895 garLoopResultBuilder]: At program point L1610(line 1610) the Hoare annotation is: (and (= ~STATIC_CONST_TRUE~0 1) (= ~STATIC_CONST_FALSE~0 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2023-12-02 12:54:33,366 INFO L899 garLoopResultBuilder]: For program point L1610-1(line 1610) no Hoare annotation was computed. [2023-12-02 12:54:33,366 INFO L899 garLoopResultBuilder]: For program point L1643-2(lines 1640 1655) no Hoare annotation was computed. [2023-12-02 12:54:33,366 INFO L895 garLoopResultBuilder]: At program point L1668(line 1668) the Hoare annotation is: (= ~STATIC_CONST_TRUE~0 1) [2023-12-02 12:54:33,366 INFO L895 garLoopResultBuilder]: At program point L1635(line 1635) the Hoare annotation is: (and (= ~STATIC_CONST_TRUE~0 1) (= ~STATIC_CONST_FALSE~0 0) (<= (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|) 0)) [2023-12-02 12:54:33,366 INFO L899 garLoopResultBuilder]: For program point L1668-1(line 1668) no Hoare annotation was computed. [2023-12-02 12:54:33,366 INFO L899 garLoopResultBuilder]: For program point L1635-1(line 1635) no Hoare annotation was computed. [2023-12-02 12:54:33,366 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 12:54:33,366 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1633) no Hoare annotation was computed. [2023-12-02 12:54:33,366 INFO L899 garLoopResultBuilder]: For program point L1594(lines 1594 1601) no Hoare annotation was computed. [2023-12-02 12:54:33,367 INFO L899 garLoopResultBuilder]: For program point L1594-2(lines 1594 1601) no Hoare annotation was computed. [2023-12-02 12:54:33,367 INFO L895 garLoopResultBuilder]: At program point L1652(line 1652) the Hoare annotation is: (= ~STATIC_CONST_TRUE~0 1) [2023-12-02 12:54:33,367 INFO L899 garLoopResultBuilder]: For program point L1652-1(line 1652) no Hoare annotation was computed. [2023-12-02 12:54:33,367 INFO L899 garLoopResultBuilder]: For program point L1586(lines 1586 1617) no Hoare annotation was computed. [2023-12-02 12:54:33,367 INFO L895 garLoopResultBuilder]: At program point L1578(line 1578) the Hoare annotation is: (and (= ~STATIC_CONST_TRUE~0 1) (= ~STATIC_CONST_FALSE~0 0) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647)) [2023-12-02 12:54:33,367 INFO L899 garLoopResultBuilder]: For program point L1578-1(line 1578) no Hoare annotation was computed. [2023-12-02 12:54:33,367 INFO L895 garLoopResultBuilder]: At program point L1570(line 1570) the Hoare annotation is: false [2023-12-02 12:54:33,367 INFO L899 garLoopResultBuilder]: For program point L1570-1(line 1570) no Hoare annotation was computed. [2023-12-02 12:54:33,368 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1608) no Hoare annotation was computed. [2023-12-02 12:54:33,368 INFO L899 garLoopResultBuilder]: For program point L1554(lines 1554 1567) no Hoare annotation was computed. [2023-12-02 12:54:33,368 INFO L899 garLoopResultBuilder]: For program point L1554-2(lines 1551 1585) no Hoare annotation was computed. [2023-12-02 12:54:33,368 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1650) no Hoare annotation was computed. [2023-12-02 12:54:33,371 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:33,373 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 12:54:33,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:54:33 BoogieIcfgContainer [2023-12-02 12:54:33,378 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:54:33,378 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:54:33,378 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:54:33,378 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:54:33,379 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:54:31" (3/4) ... [2023-12-02 12:54:33,381 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 12:54:33,384 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-12-02 12:54:33,384 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-12-02 12:54:33,390 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-12-02 12:54:33,390 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-12-02 12:54:33,391 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-02 12:54:33,391 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 12:54:33,392 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 12:54:33,488 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe71ef11-b2c5-4cad-a770-21748d0af89a/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 12:54:33,489 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe71ef11-b2c5-4cad-a770-21748d0af89a/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 12:54:33,489 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:54:33,490 INFO L158 Benchmark]: Toolchain (without parser) took 3579.83ms. Allocated memory is still 182.5MB. Free memory was 144.5MB in the beginning and 88.0MB in the end (delta: 56.5MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2023-12-02 12:54:33,490 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:54:33,490 INFO L158 Benchmark]: CACSL2BoogieTranslator took 970.56ms. Allocated memory is still 182.5MB. Free memory was 144.5MB in the beginning and 79.1MB in the end (delta: 65.4MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2023-12-02 12:54:33,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.20ms. Allocated memory is still 182.5MB. Free memory was 79.1MB in the beginning and 147.9MB in the end (delta: -68.8MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2023-12-02 12:54:33,491 INFO L158 Benchmark]: Boogie Preprocessor took 31.37ms. Allocated memory is still 182.5MB. Free memory was 147.9MB in the beginning and 146.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:54:33,491 INFO L158 Benchmark]: RCFGBuilder took 497.90ms. Allocated memory is still 182.5MB. Free memory was 146.8MB in the beginning and 126.7MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 12:54:33,492 INFO L158 Benchmark]: TraceAbstraction took 1880.32ms. Allocated memory is still 182.5MB. Free memory was 125.8MB in the beginning and 94.2MB in the end (delta: 31.5MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2023-12-02 12:54:33,492 INFO L158 Benchmark]: Witness Printer took 110.89ms. Allocated memory is still 182.5MB. Free memory was 94.2MB in the beginning and 88.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 12:54:33,494 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 970.56ms. Allocated memory is still 182.5MB. Free memory was 144.5MB in the beginning and 79.1MB in the end (delta: 65.4MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.20ms. Allocated memory is still 182.5MB. Free memory was 79.1MB in the beginning and 147.9MB in the end (delta: -68.8MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.37ms. Allocated memory is still 182.5MB. Free memory was 147.9MB in the beginning and 146.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 497.90ms. Allocated memory is still 182.5MB. Free memory was 146.8MB in the beginning and 126.7MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1880.32ms. Allocated memory is still 182.5MB. Free memory was 125.8MB in the beginning and 94.2MB in the end (delta: 31.5MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. * Witness Printer took 110.89ms. Allocated memory is still 182.5MB. Free memory was 94.2MB in the beginning and 88.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1608]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1608]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1633]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1633]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1650]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1650]: 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, 63 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 237 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 229 mSDsluCounter, 1190 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 659 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 175 IncrementalHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 531 mSDtfsCounter, 175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=0, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 38 PreInvPairs, 46 NumberOfFragments, 89 HoareAnnotationTreeSize, 38 FomulaSimplifications, 64 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 36 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 215 ConstructedInterpolants, 0 QuantifiedInterpolants, 433 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 30/30 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-02 12:54:33,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe71ef11-b2c5-4cad-a770-21748d0af89a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE