./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_12_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_12_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c0a0030ffa27dca5bb14131b70d3aa8b11940565f5178ee0497f1eeb9a0fdf14 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:34:12,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:34:12,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:34:12,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:34:12,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:34:12,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:34:12,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:34:12,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:34:12,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:34:12,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:34:12,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:34:12,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:34:12,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:34:12,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:34:12,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:34:12,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:34:12,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:34:12,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:34:12,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:34:12,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:34:12,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:34:12,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:34:12,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:34:12,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:34:13,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:34:13,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:34:13,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:34:13,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:34:13,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:34:13,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:34:13,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:34:13,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:34:13,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:34:13,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:34:13,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:34:13,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:34:13,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:34:13,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:34:13,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:34:13,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:34:13,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:34:13,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-20 09:34:13,074 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:34:13,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:34:13,075 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:34:13,075 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:34:13,076 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:34:13,077 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:34:13,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:34:13,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:34:13,078 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:34:13,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:34:13,080 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:34:13,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:34:13,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:34:13,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:34:13,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:34:13,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:34:13,081 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 09:34:13,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:34:13,082 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:34:13,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:34:13,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:34:13,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:34:13,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:34:13,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:34:13,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:34:13,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:34:13,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:34:13,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:34:13,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:34:13,084 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:34:13,085 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:34:13,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:34:13,085 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0a0030ffa27dca5bb14131b70d3aa8b11940565f5178ee0497f1eeb9a0fdf14 [2022-11-20 09:34:13,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:34:13,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:34:13,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:34:13,455 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:34:13,456 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:34:13,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_12_good.i [2022-11-20 09:34:16,551 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:34:16,910 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:34:16,911 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_12_good.i [2022-11-20 09:34:16,928 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN/data/95d8d18a6/d639cf81ede2418b985a7c01a836cfb6/FLAG97e6aee3a [2022-11-20 09:34:16,944 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN/data/95d8d18a6/d639cf81ede2418b985a7c01a836cfb6 [2022-11-20 09:34:16,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:34:16,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:34:16,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:34:16,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:34:16,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:34:16,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:34:16" (1/1) ... [2022-11-20 09:34:16,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c07850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:16, skipping insertion in model container [2022-11-20 09:34:16,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:34:16" (1/1) ... [2022-11-20 09:34:16,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:34:17,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:34:17,394 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 09:34:18,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:34:18,021 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:34:18,039 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 09:34:18,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:34:18,267 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:34:18,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:18 WrapperNode [2022-11-20 09:34:18,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:34:18,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:34:18,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:34:18,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:34:18,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:18" (1/1) ... [2022-11-20 09:34:18,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:18" (1/1) ... [2022-11-20 09:34:18,374 INFO L138 Inliner]: procedures = 502, calls = 83, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 121 [2022-11-20 09:34:18,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:34:18,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:34:18,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:34:18,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:34:18,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:18" (1/1) ... [2022-11-20 09:34:18,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:18" (1/1) ... [2022-11-20 09:34:18,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:18" (1/1) ... [2022-11-20 09:34:18,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:18" (1/1) ... [2022-11-20 09:34:18,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:18" (1/1) ... [2022-11-20 09:34:18,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:18" (1/1) ... [2022-11-20 09:34:18,410 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:18" (1/1) ... [2022-11-20 09:34:18,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:18" (1/1) ... [2022-11-20 09:34:18,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:34:18,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:34:18,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:34:18,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:34:18,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:18" (1/1) ... [2022-11-20 09:34:18,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:34:18,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:34:18,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:34:18,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:34:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-20 09:34:18,524 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-20 09:34:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 09:34:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2022-11-20 09:34:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2022-11-20 09:34:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 09:34:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 09:34:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:34:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 09:34:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:34:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:34:18,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:34:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:34:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 09:34:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:34:18,691 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:34:18,694 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:34:18,963 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:34:18,970 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:34:18,970 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 09:34:18,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:34:18 BoogieIcfgContainer [2022-11-20 09:34:18,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:34:18,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:34:18,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:34:19,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:34:19,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:34:16" (1/3) ... [2022-11-20 09:34:19,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6e84b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:34:19, skipping insertion in model container [2022-11-20 09:34:19,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:34:18" (2/3) ... [2022-11-20 09:34:19,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6e84b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:34:19, skipping insertion in model container [2022-11-20 09:34:19,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:34:18" (3/3) ... [2022-11-20 09:34:19,007 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_12_good.i [2022-11-20 09:34:19,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:34:19,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-20 09:34:19,110 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:34:19,116 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@12c2c05c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:34:19,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 09:34:19,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 52 states have internal predecessors, (55), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-20 09:34:19,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 09:34:19,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:19,129 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:19,130 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 09:34:19,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:19,140 INFO L85 PathProgramCache]: Analyzing trace with hash 229916058, now seen corresponding path program 1 times [2022-11-20 09:34:19,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:34:19,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108981081] [2022-11-20 09:34:19,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:19,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:34:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:19,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:34:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:19,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 09:34:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:19,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:34:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:19,663 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 09:34:19,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:34:19,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108981081] [2022-11-20 09:34:19,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108981081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:19,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:19,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:34:19,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276766957] [2022-11-20 09:34:19,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:19,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:34:19,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:34:19,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:34:19,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:34:19,704 INFO L87 Difference]: Start difference. First operand has 64 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 52 states have internal predecessors, (55), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 09:34:19,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:19,769 INFO L93 Difference]: Finished difference Result 88 states and 113 transitions. [2022-11-20 09:34:19,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:34:19,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-11-20 09:34:19,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:19,781 INFO L225 Difference]: With dead ends: 88 [2022-11-20 09:34:19,781 INFO L226 Difference]: Without dead ends: 69 [2022-11-20 09:34:19,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:34:19,787 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 38 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:19,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 228 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:34:19,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-20 09:34:19,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 54. [2022-11-20 09:34:19,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 44 states have internal predecessors, (47), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 09:34:19,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 69 transitions. [2022-11-20 09:34:19,832 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 69 transitions. Word has length 24 [2022-11-20 09:34:19,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:19,832 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 69 transitions. [2022-11-20 09:34:19,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 09:34:19,833 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 69 transitions. [2022-11-20 09:34:19,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 09:34:19,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:19,835 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:19,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:34:19,835 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)] === [2022-11-20 09:34:19,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:19,836 INFO L85 PathProgramCache]: Analyzing trace with hash 229902156, now seen corresponding path program 1 times [2022-11-20 09:34:19,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:34:19,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383465639] [2022-11-20 09:34:19,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:19,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:34:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:19,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:34:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:19,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 09:34:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:34:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 09:34:20,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:34:20,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383465639] [2022-11-20 09:34:20,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383465639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:20,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:20,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:34:20,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375056308] [2022-11-20 09:34:20,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:20,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:34:20,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:34:20,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:34:20,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:34:20,034 INFO L87 Difference]: Start difference. First operand 54 states and 69 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 09:34:20,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:20,069 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2022-11-20 09:34:20,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:34:20,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-11-20 09:34:20,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:20,072 INFO L225 Difference]: With dead ends: 69 [2022-11-20 09:34:20,072 INFO L226 Difference]: Without dead ends: 68 [2022-11-20 09:34:20,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:34:20,074 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 30 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:20,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 168 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:34:20,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-20 09:34:20,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 53. [2022-11-20 09:34:20,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 33 states have (on average 1.393939393939394) internal successors, (46), 43 states have internal predecessors, (46), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 09:34:20,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2022-11-20 09:34:20,085 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 24 [2022-11-20 09:34:20,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:20,085 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2022-11-20 09:34:20,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 09:34:20,086 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2022-11-20 09:34:20,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 09:34:20,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:20,087 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:20,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:34:20,088 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 09:34:20,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:20,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1462536698, now seen corresponding path program 1 times [2022-11-20 09:34:20,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:34:20,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096961053] [2022-11-20 09:34:20,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:20,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:34:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:34:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 09:34:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:34:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 09:34:20,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:34:20,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096961053] [2022-11-20 09:34:20,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096961053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:20,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:20,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:34:20,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807973124] [2022-11-20 09:34:20,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:20,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:34:20,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:34:20,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:34:20,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:34:20,236 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-20 09:34:20,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:20,250 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2022-11-20 09:34:20,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:34:20,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 25 [2022-11-20 09:34:20,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:20,252 INFO L225 Difference]: With dead ends: 53 [2022-11-20 09:34:20,254 INFO L226 Difference]: Without dead ends: 52 [2022-11-20 09:34:20,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:34:20,256 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:20,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:34:20,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-20 09:34:20,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-20 09:34:20,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 42 states have internal predecessors, (45), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 09:34:20,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2022-11-20 09:34:20,274 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 25 [2022-11-20 09:34:20,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:20,275 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2022-11-20 09:34:20,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-20 09:34:20,275 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2022-11-20 09:34:20,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 09:34:20,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:20,277 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:20,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:34:20,278 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 09:34:20,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:20,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1462967674, now seen corresponding path program 1 times [2022-11-20 09:34:20,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:34:20,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514685376] [2022-11-20 09:34:20,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:20,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:34:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:34:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 09:34:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:34:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 09:34:20,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:34:20,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514685376] [2022-11-20 09:34:20,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514685376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:20,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:20,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:34:20,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420359948] [2022-11-20 09:34:20,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:20,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:34:20,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:34:20,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:34:20,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:34:20,380 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-20 09:34:20,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:20,391 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2022-11-20 09:34:20,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:34:20,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 25 [2022-11-20 09:34:20,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:20,393 INFO L225 Difference]: With dead ends: 52 [2022-11-20 09:34:20,393 INFO L226 Difference]: Without dead ends: 51 [2022-11-20 09:34:20,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:34:20,394 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:20,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:34:20,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-20 09:34:20,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-20 09:34:20,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 41 states have internal predecessors, (44), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 09:34:20,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2022-11-20 09:34:20,403 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 25 [2022-11-20 09:34:20,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:20,404 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2022-11-20 09:34:20,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-20 09:34:20,404 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2022-11-20 09:34:20,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 09:34:20,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:20,406 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:20,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:34:20,406 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 09:34:20,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:20,407 INFO L85 PathProgramCache]: Analyzing trace with hash 542029647, now seen corresponding path program 1 times [2022-11-20 09:34:20,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:34:20,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432281950] [2022-11-20 09:34:20,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:20,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:34:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:34:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 09:34:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:34:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 09:34:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 09:34:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:34:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 09:34:20,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:34:20,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432281950] [2022-11-20 09:34:20,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432281950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:20,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:20,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:34:20,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114348743] [2022-11-20 09:34:20,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:20,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:34:20,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:34:20,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:34:20,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:34:20,517 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 09:34:20,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:20,537 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2022-11-20 09:34:20,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:34:20,538 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2022-11-20 09:34:20,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:20,539 INFO L225 Difference]: With dead ends: 51 [2022-11-20 09:34:20,539 INFO L226 Difference]: Without dead ends: 50 [2022-11-20 09:34:20,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:34:20,541 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 9 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:20,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 174 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:34:20,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-20 09:34:20,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-20 09:34:20,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 33 states have (on average 1.303030303030303) internal successors, (43), 40 states have internal predecessors, (43), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 09:34:20,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 65 transitions. [2022-11-20 09:34:20,548 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 65 transitions. Word has length 42 [2022-11-20 09:34:20,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:20,549 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 65 transitions. [2022-11-20 09:34:20,549 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 09:34:20,549 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 65 transitions. [2022-11-20 09:34:20,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 09:34:20,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:20,551 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:20,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:34:20,551 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 09:34:20,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:20,552 INFO L85 PathProgramCache]: Analyzing trace with hash 542029871, now seen corresponding path program 1 times [2022-11-20 09:34:20,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:34:20,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895756039] [2022-11-20 09:34:20,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:20,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:34:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:34:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 09:34:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:34:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 09:34:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 09:34:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:34:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,653 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 09:34:20,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:34:20,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895756039] [2022-11-20 09:34:20,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895756039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:20,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:20,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:34:20,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122946433] [2022-11-20 09:34:20,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:20,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:34:20,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:34:20,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:34:20,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:34:20,658 INFO L87 Difference]: Start difference. First operand 50 states and 65 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 09:34:20,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:20,699 INFO L93 Difference]: Finished difference Result 50 states and 65 transitions. [2022-11-20 09:34:20,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:34:20,699 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2022-11-20 09:34:20,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:20,703 INFO L225 Difference]: With dead ends: 50 [2022-11-20 09:34:20,703 INFO L226 Difference]: Without dead ends: 49 [2022-11-20 09:34:20,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:34:20,711 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 8 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:20,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 172 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:34:20,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-20 09:34:20,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-20 09:34:20,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 39 states have internal predecessors, (42), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 09:34:20,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 64 transitions. [2022-11-20 09:34:20,731 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 64 transitions. Word has length 42 [2022-11-20 09:34:20,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:20,733 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 64 transitions. [2022-11-20 09:34:20,733 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 09:34:20,734 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2022-11-20 09:34:20,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-20 09:34:20,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:20,738 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:20,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:34:20,738 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 09:34:20,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:20,751 INFO L85 PathProgramCache]: Analyzing trace with hash -376950008, now seen corresponding path program 1 times [2022-11-20 09:34:20,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:34:20,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339089899] [2022-11-20 09:34:20,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:20,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:34:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:34:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 09:34:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:34:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 09:34:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 09:34:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:34:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,846 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 09:34:20,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:34:20,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339089899] [2022-11-20 09:34:20,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339089899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:20,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:20,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:34:20,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854497190] [2022-11-20 09:34:20,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:20,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:34:20,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:34:20,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:34:20,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:34:20,849 INFO L87 Difference]: Start difference. First operand 49 states and 64 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 09:34:20,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:20,867 INFO L93 Difference]: Finished difference Result 49 states and 64 transitions. [2022-11-20 09:34:20,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:34:20,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2022-11-20 09:34:20,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:20,868 INFO L225 Difference]: With dead ends: 49 [2022-11-20 09:34:20,869 INFO L226 Difference]: Without dead ends: 46 [2022-11-20 09:34:20,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:34:20,870 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 6 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:20,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 170 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:34:20,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-20 09:34:20,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-20 09:34:20,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 36 states have internal predecessors, (39), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 09:34:20,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2022-11-20 09:34:20,876 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 43 [2022-11-20 09:34:20,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:20,877 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2022-11-20 09:34:20,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 09:34:20,877 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2022-11-20 09:34:20,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-20 09:34:20,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:20,878 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:20,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:34:20,879 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 09:34:20,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:20,879 INFO L85 PathProgramCache]: Analyzing trace with hash -376943057, now seen corresponding path program 1 times [2022-11-20 09:34:20,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:34:20,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893301863] [2022-11-20 09:34:20,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:20,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:34:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:34:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 09:34:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 09:34:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 09:34:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 09:34:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-20 09:34:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:20,989 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 09:34:20,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:34:20,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893301863] [2022-11-20 09:34:20,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893301863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:20,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:20,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:34:20,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713886138] [2022-11-20 09:34:20,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:20,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:34:20,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:34:20,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:34:20,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:34:20,993 INFO L87 Difference]: Start difference. First operand 46 states and 61 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 09:34:21,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:21,022 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2022-11-20 09:34:21,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:34:21,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2022-11-20 09:34:21,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:21,024 INFO L225 Difference]: With dead ends: 46 [2022-11-20 09:34:21,024 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 09:34:21,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:34:21,026 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 3 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:21,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 166 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:34:21,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 09:34:21,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 09:34:21,029 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) [2022-11-20 09:34:21,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 09:34:21,029 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2022-11-20 09:34:21,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:21,030 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:34:21,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 09:34:21,030 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 09:34:21,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 09:34:21,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-20 09:34:21,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-20 09:34:21,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-20 09:34:21,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-20 09:34:21,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-20 09:34:21,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-20 09:34:21,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-20 09:34:21,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-20 09:34:21,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 09:34:21,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 09:34:21,083 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-20 09:34:21,083 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-20 09:34:21,084 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed. [2022-11-20 09:34:21,084 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed. [2022-11-20 09:34:21,084 INFO L899 garLoopResultBuilder]: For program point globalReturnsTrueOrFalseFINAL(lines 1518 1521) no Hoare annotation was computed. [2022-11-20 09:34:21,084 INFO L899 garLoopResultBuilder]: For program point globalReturnsTrueOrFalseEXIT(lines 1518 1521) no Hoare annotation was computed. [2022-11-20 09:34:21,084 INFO L902 garLoopResultBuilder]: At program point globalReturnsTrueOrFalseENTRY(lines 1518 1521) the Hoare annotation is: true [2022-11-20 09:34:21,084 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-20 09:34:21,084 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-20 09:34:21,085 INFO L899 garLoopResultBuilder]: For program point printIntLineFINAL(lines 1426 1429) no Hoare annotation was computed. [2022-11-20 09:34:21,086 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1597) no Hoare annotation was computed. [2022-11-20 09:34:21,086 INFO L899 garLoopResultBuilder]: For program point L1584(line 1584) no Hoare annotation was computed. [2022-11-20 09:34:21,086 INFO L899 garLoopResultBuilder]: For program point L1584-1(line 1584) no Hoare annotation was computed. [2022-11-20 09:34:21,086 INFO L902 garLoopResultBuilder]: At program point L1646(line 1646) the Hoare annotation is: true [2022-11-20 09:34:21,086 INFO L899 garLoopResultBuilder]: For program point L1646-1(line 1646) no Hoare annotation was computed. [2022-11-20 09:34:21,086 INFO L899 garLoopResultBuilder]: For program point L1580(line 1580) no Hoare annotation was computed. [2022-11-20 09:34:21,086 INFO L899 garLoopResultBuilder]: For program point L1580-1(lines 1580 1605) no Hoare annotation was computed. [2022-11-20 09:34:21,087 INFO L895 garLoopResultBuilder]: At program point L1576(line 1576) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-20 09:34:21,087 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1630) no Hoare annotation was computed. [2022-11-20 09:34:21,087 INFO L899 garLoopResultBuilder]: For program point L1576-1(lines 1570 1577) no Hoare annotation was computed. [2022-11-20 09:34:21,087 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 09:34:21,087 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1584) no Hoare annotation was computed. [2022-11-20 09:34:21,088 INFO L899 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2022-11-20 09:34:21,088 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 09:34:21,088 INFO L899 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2022-11-20 09:34:21,088 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1622) no Hoare annotation was computed. [2022-11-20 09:34:21,088 INFO L899 garLoopResultBuilder]: For program point L1630-1(line 1630) no Hoare annotation was computed. [2022-11-20 09:34:21,088 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 09:34:21,088 INFO L899 garLoopResultBuilder]: For program point L1597-1(line 1597) no Hoare annotation was computed. [2022-11-20 09:34:21,088 INFO L899 garLoopResultBuilder]: For program point L1622(line 1622) no Hoare annotation was computed. [2022-11-20 09:34:21,090 INFO L899 garLoopResultBuilder]: For program point L1622-1(line 1622) no Hoare annotation was computed. [2022-11-20 09:34:21,091 INFO L899 garLoopResultBuilder]: For program point L1556(lines 1556 1563) no Hoare annotation was computed. [2022-11-20 09:34:21,091 INFO L895 garLoopResultBuilder]: At program point L1552(line 1552) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-20 09:34:21,091 INFO L899 garLoopResultBuilder]: For program point L1552-1(line 1552) no Hoare annotation was computed. [2022-11-20 09:34:21,091 INFO L902 garLoopResultBuilder]: At program point L1647(lines 1641 1648) the Hoare annotation is: true [2022-11-20 09:34:21,091 INFO L899 garLoopResultBuilder]: For program point L1552-2(lines 1552 1579) no Hoare annotation was computed. [2022-11-20 09:34:21,091 INFO L895 garLoopResultBuilder]: At program point L1552-4(lines 1552 1579) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-20 09:34:21,092 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1584) no Hoare annotation was computed. [2022-11-20 09:34:21,092 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 09:34:21,093 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1622) no Hoare annotation was computed. [2022-11-20 09:34:21,094 INFO L895 garLoopResultBuilder]: At program point L1590(line 1590) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-20 09:34:21,094 INFO L899 garLoopResultBuilder]: For program point L1619(line 1619) no Hoare annotation was computed. [2022-11-20 09:34:21,096 INFO L895 garLoopResultBuilder]: At program point L1586(line 1586) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-20 09:34:21,096 INFO L899 garLoopResultBuilder]: For program point L1619-1(lines 1619 1634) no Hoare annotation was computed. [2022-11-20 09:34:21,096 INFO L899 garLoopResultBuilder]: For program point L1582(lines 1582 1591) no Hoare annotation was computed. [2022-11-20 09:34:21,097 INFO L902 garLoopResultBuilder]: At program point L1644(line 1644) the Hoare annotation is: true [2022-11-20 09:34:21,097 INFO L899 garLoopResultBuilder]: For program point L1644-1(line 1644) no Hoare annotation was computed. [2022-11-20 09:34:21,097 INFO L895 garLoopResultBuilder]: At program point L1611(line 1611) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodG2B_~data~1#1| 2)) [2022-11-20 09:34:21,097 INFO L899 garLoopResultBuilder]: For program point L1611-1(line 1611) no Hoare annotation was computed. [2022-11-20 09:34:21,097 INFO L899 garLoopResultBuilder]: For program point L1611-2(lines 1611 1618) no Hoare annotation was computed. [2022-11-20 09:34:21,097 INFO L895 garLoopResultBuilder]: At program point L1611-4(lines 1611 1618) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_goodG2B_~data~1#1| 2))) (and (<= .cse0 0) (<= 0 .cse0))) [2022-11-20 09:34:21,097 INFO L899 garLoopResultBuilder]: For program point L1636(lines 1636 1640) no Hoare annotation was computed. [2022-11-20 09:34:21,097 INFO L895 garLoopResultBuilder]: At program point L1603(line 1603) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-20 09:34:21,098 INFO L899 garLoopResultBuilder]: For program point L1570(lines 1570 1577) no Hoare annotation was computed. [2022-11-20 09:34:21,098 INFO L899 garLoopResultBuilder]: For program point L1603-1(lines 1580 1605) no Hoare annotation was computed. [2022-11-20 09:34:21,098 INFO L902 garLoopResultBuilder]: At program point L1632(line 1632) the Hoare annotation is: true [2022-11-20 09:34:21,098 INFO L895 garLoopResultBuilder]: At program point L1599(line 1599) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-20 09:34:21,098 INFO L899 garLoopResultBuilder]: For program point L1632-1(lines 1607 1635) no Hoare annotation was computed. [2022-11-20 09:34:21,098 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1597) no Hoare annotation was computed. [2022-11-20 09:34:21,098 INFO L899 garLoopResultBuilder]: For program point L1595(lines 1595 1604) no Hoare annotation was computed. [2022-11-20 09:34:21,099 INFO L895 garLoopResultBuilder]: At program point L1562(line 1562) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483647) [2022-11-20 09:34:21,099 INFO L899 garLoopResultBuilder]: For program point L1562-1(lines 1556 1563) no Hoare annotation was computed. [2022-11-20 09:34:21,099 INFO L902 garLoopResultBuilder]: At program point L1624(line 1624) the Hoare annotation is: true [2022-11-20 09:34:21,099 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1630) no Hoare annotation was computed. [2022-11-20 09:34:21,102 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:21,104 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:34:21,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:34:21 BoogieIcfgContainer [2022-11-20 09:34:21,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:34:21,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:34:21,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:34:21,117 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:34:21,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:34:18" (3/4) ... [2022-11-20 09:34:21,121 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 09:34:21,129 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-20 09:34:21,129 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrueOrFalse [2022-11-20 09:34:21,129 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-20 09:34:21,140 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-20 09:34:21,140 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-20 09:34:21,140 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 09:34:21,141 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 09:34:21,141 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 09:34:21,201 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 09:34:21,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:34:21,201 INFO L158 Benchmark]: Toolchain (without parser) took 4253.36ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 77.3MB in the beginning and 61.7MB in the end (delta: 15.6MB). Peak memory consumption was 42.0MB. Max. memory is 16.1GB. [2022-11-20 09:34:21,202 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 92.3MB. Free memory was 44.3MB in the beginning and 44.2MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:34:21,202 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1318.84ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 76.9MB in the beginning and 77.7MB in the end (delta: -797.0kB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-11-20 09:34:21,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.56ms. Allocated memory is still 151.0MB. Free memory was 77.7MB in the beginning and 74.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 09:34:21,203 INFO L158 Benchmark]: Boogie Preprocessor took 54.95ms. Allocated memory is still 151.0MB. Free memory was 74.5MB in the beginning and 73.5MB in the end (delta: 982.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:34:21,203 INFO L158 Benchmark]: RCFGBuilder took 541.69ms. Allocated memory is still 151.0MB. Free memory was 73.5MB in the beginning and 56.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 09:34:21,205 INFO L158 Benchmark]: TraceAbstraction took 2119.54ms. Allocated memory is still 151.0MB. Free memory was 118.4MB in the beginning and 65.9MB in the end (delta: 52.5MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2022-11-20 09:34:21,206 INFO L158 Benchmark]: Witness Printer took 84.39ms. Allocated memory is still 151.0MB. Free memory was 65.9MB in the beginning and 61.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 09:34:21,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 92.3MB. Free memory was 44.3MB in the beginning and 44.2MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1318.84ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 76.9MB in the beginning and 77.7MB in the end (delta: -797.0kB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.56ms. Allocated memory is still 151.0MB. Free memory was 77.7MB in the beginning and 74.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.95ms. Allocated memory is still 151.0MB. Free memory was 74.5MB in the beginning and 73.5MB in the end (delta: 982.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 541.69ms. Allocated memory is still 151.0MB. Free memory was 73.5MB in the beginning and 56.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2119.54ms. Allocated memory is still 151.0MB. Free memory was 118.4MB in the beginning and 65.9MB in the end (delta: 52.5MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. * Witness Printer took 84.39ms. Allocated memory is still 151.0MB. Free memory was 65.9MB in the beginning and 61.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1597]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1597]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1622]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1622]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 64 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 115 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 94 mSDsluCounter, 1332 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 811 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 521 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=0, InterpolantAutomatonStates: 30, 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, 8 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 32 PreInvPairs, 36 NumberOfFragments, 48 HoareAnnotationTreeSize, 32 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 268 NumberOfCodeBlocks, 268 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 372 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 100/100 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 - InvariantResult [Line: 1641]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 09:34:21,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0210e283-64c7-4fba-b484-f55ece625b00/bin/uautomizer-ug76WZFUDN/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