./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_21_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_21_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R --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 12cbffb03bad242117cb9071acc00db101d378e9513ef38b3e41091e3531c492 --- 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-38b53e6 [2022-11-25 18:02:22,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:02:22,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:02:22,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:02:22,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:02:22,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:02:22,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:02:22,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:02:22,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:02:22,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:02:22,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:02:22,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:02:22,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:02:22,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:02:22,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:02:22,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:02:22,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:02:22,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:02:22,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:02:22,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:02:22,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:02:22,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:02:22,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:02:22,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:02:22,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:02:22,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:02:22,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:02:22,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:02:22,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:02:22,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:02:22,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:02:22,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:02:22,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:02:22,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:02:22,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:02:22,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:02:22,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:02:22,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:02:22,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:02:22,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:02:22,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:02:22,686 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 18:02:22,720 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:02:22,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:02:22,721 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:02:22,722 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:02:22,722 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:02:22,723 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:02:22,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:02:22,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:02:22,724 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:02:22,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:02:22,725 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:02:22,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:02:22,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:02:22,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:02:22,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:02:22,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:02:22,726 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:02:22,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:02:22,727 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:02:22,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:02:22,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:02:22,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:02:22,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:02:22,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:02:22,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:02:22,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:02:22,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:02:22,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:02:22,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:02:22,729 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:02:22,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:02:22,729 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:02:22,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:02:22,730 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12cbffb03bad242117cb9071acc00db101d378e9513ef38b3e41091e3531c492 [2022-11-25 18:02:23,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:02:23,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:02:23,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:02:23,110 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:02:23,110 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:02:23,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_21_good.i [2022-11-25 18:02:26,240 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:02:26,661 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:02:26,662 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_21_good.i [2022-11-25 18:02:26,681 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R/data/83076b4f4/7f8de1e727c345279584f0bf411a4835/FLAG1642209d6 [2022-11-25 18:02:26,696 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R/data/83076b4f4/7f8de1e727c345279584f0bf411a4835 [2022-11-25 18:02:26,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:02:26,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:02:26,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:02:26,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:02:26,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:02:26,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:02:26" (1/1) ... [2022-11-25 18:02:26,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1571cbb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:26, skipping insertion in model container [2022-11-25 18:02:26,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:02:26" (1/1) ... [2022-11-25 18:02:26,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:02:26,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:02:27,233 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:02:27,628 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 18:02:27,636 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:02:27,637 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:02:27,640 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:02:27,640 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:02:27,688 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:02:27,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:02:27,707 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:02:27,742 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:02:27,808 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 18:02:27,810 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:02:27,811 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:02:27,813 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:02:27,814 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:02:27,821 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:02:27,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:02:27,965 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:02:27,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:27 WrapperNode [2022-11-25 18:02:27,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:02:27,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:02:27,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:02:27,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:02:27,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:27" (1/1) ... [2022-11-25 18:02:28,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:27" (1/1) ... [2022-11-25 18:02:28,051 INFO L138 Inliner]: procedures = 505, calls = 78, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 95 [2022-11-25 18:02:28,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:02:28,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:02:28,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:02:28,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:02:28,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:27" (1/1) ... [2022-11-25 18:02:28,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:27" (1/1) ... [2022-11-25 18:02:28,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:27" (1/1) ... [2022-11-25 18:02:28,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:27" (1/1) ... [2022-11-25 18:02:28,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:27" (1/1) ... [2022-11-25 18:02:28,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:27" (1/1) ... [2022-11-25 18:02:28,076 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:27" (1/1) ... [2022-11-25 18:02:28,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:27" (1/1) ... [2022-11-25 18:02:28,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:02:28,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:02:28,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:02:28,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:02:28,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:27" (1/1) ... [2022-11-25 18:02:28,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:02:28,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:02:28,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:02:28,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:02:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-25 18:02:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-25 18:02:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 18:02:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 18:02:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:02:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:02:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:02:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:02:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:02:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:02:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 18:02:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:02:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:02:28,323 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:02:28,325 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:02:28,613 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:02:28,619 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:02:28,619 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:02:28,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:02:28 BoogieIcfgContainer [2022-11-25 18:02:28,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:02:28,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:02:28,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:02:28,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:02:28,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:02:26" (1/3) ... [2022-11-25 18:02:28,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c3943e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:02:28, skipping insertion in model container [2022-11-25 18:02:28,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:02:27" (2/3) ... [2022-11-25 18:02:28,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c3943e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:02:28, skipping insertion in model container [2022-11-25 18:02:28,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:02:28" (3/3) ... [2022-11-25 18:02:28,641 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_predec_21_good.i [2022-11-25 18:02:28,660 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:02:28,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 18:02:28,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:02:28,765 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;@71602fff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:02:28,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 18:02:28,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 40 states have internal predecessors, (41), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 18:02:28,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 18:02:28,783 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:02:28,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:28,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 18:02:28,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:28,794 INFO L85 PathProgramCache]: Analyzing trace with hash 670059197, now seen corresponding path program 1 times [2022-11-25 18:02:28,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:28,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336975085] [2022-11-25 18:02:28,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:28,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:29,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:02:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:29,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:29,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:29,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336975085] [2022-11-25 18:02:29,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336975085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:29,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:29,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:02:29,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336888122] [2022-11-25 18:02:29,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:29,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:02:29,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:29,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:02:29,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:02:29,276 INFO L87 Difference]: Start difference. First operand has 46 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 40 states have internal predecessors, (41), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:02:29,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:02:29,337 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2022-11-25 18:02:29,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:02:29,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-25 18:02:29,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:02:29,350 INFO L225 Difference]: With dead ends: 46 [2022-11-25 18:02:29,351 INFO L226 Difference]: Without dead ends: 36 [2022-11-25 18:02:29,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:02:29,365 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 2 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:02:29,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 103 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:02:29,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-25 18:02:29,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-25 18:02:29,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.391304347826087) internal successors, (32), 31 states have internal predecessors, (32), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 18:02:29,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2022-11-25 18:02:29,416 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 11 [2022-11-25 18:02:29,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:02:29,417 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2022-11-25 18:02:29,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:02:29,418 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2022-11-25 18:02:29,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 18:02:29,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:02:29,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:29,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:02:29,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 18:02:29,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:29,423 INFO L85 PathProgramCache]: Analyzing trace with hash -703001316, now seen corresponding path program 1 times [2022-11-25 18:02:29,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:29,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028198006] [2022-11-25 18:02:29,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:29,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:29,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:02:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:29,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:02:29,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:29,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028198006] [2022-11-25 18:02:29,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028198006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:29,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:29,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:02:29,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621724160] [2022-11-25 18:02:29,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:29,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:02:29,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:29,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:02:29,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:02:29,682 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:02:29,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:02:29,694 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2022-11-25 18:02:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:02:29,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-25 18:02:29,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:02:29,696 INFO L225 Difference]: With dead ends: 36 [2022-11-25 18:02:29,696 INFO L226 Difference]: Without dead ends: 35 [2022-11-25 18:02:29,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:02:29,698 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 18 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:02:29,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 54 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:02:29,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-25 18:02:29,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-25 18:02:29,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 30 states have internal predecessors, (31), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 18:02:29,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2022-11-25 18:02:29,706 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 12 [2022-11-25 18:02:29,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:02:29,707 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2022-11-25 18:02:29,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:02:29,707 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2022-11-25 18:02:29,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 18:02:29,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:02:29,709 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:29,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:02:29,709 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 18:02:29,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:29,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1809260897, now seen corresponding path program 1 times [2022-11-25 18:02:29,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:29,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089627226] [2022-11-25 18:02:29,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:29,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:29,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:02:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:29,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 18:02:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:29,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 18:02:29,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:29,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089627226] [2022-11-25 18:02:29,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089627226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:29,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:29,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:02:29,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127219652] [2022-11-25 18:02:29,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:29,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:02:29,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:29,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:02:29,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:02:29,823 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:02:29,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:02:29,835 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2022-11-25 18:02:29,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:02:29,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2022-11-25 18:02:29,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:02:29,837 INFO L225 Difference]: With dead ends: 59 [2022-11-25 18:02:29,837 INFO L226 Difference]: Without dead ends: 34 [2022-11-25 18:02:29,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:02:29,839 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:02:29,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 39 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:02:29,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-25 18:02:29,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-25 18:02:29,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 29 states have internal predecessors, (30), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 18:02:29,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2022-11-25 18:02:29,848 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 19 [2022-11-25 18:02:29,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:02:29,848 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2022-11-25 18:02:29,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:02:29,849 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2022-11-25 18:02:29,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 18:02:29,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:02:29,850 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:29,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:02:29,851 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 18:02:29,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:29,851 INFO L85 PathProgramCache]: Analyzing trace with hash -347113726, now seen corresponding path program 1 times [2022-11-25 18:02:29,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:29,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626491327] [2022-11-25 18:02:29,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:29,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:29,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:02:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:29,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 18:02:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:29,914 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 18:02:29,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:29,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626491327] [2022-11-25 18:02:29,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626491327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:29,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:29,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:02:29,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682770161] [2022-11-25 18:02:29,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:29,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:02:29,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:29,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:02:29,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:02:29,918 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:02:29,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:02:29,933 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2022-11-25 18:02:29,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:02:29,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-11-25 18:02:29,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:02:29,935 INFO L225 Difference]: With dead ends: 34 [2022-11-25 18:02:29,936 INFO L226 Difference]: Without dead ends: 33 [2022-11-25 18:02:29,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:02:29,937 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 2 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:02:29,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 69 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:02:29,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-25 18:02:29,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-25 18:02:29,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 18:02:29,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2022-11-25 18:02:29,945 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 20 [2022-11-25 18:02:29,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:02:29,945 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2022-11-25 18:02:29,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:02:29,946 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2022-11-25 18:02:29,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 18:02:29,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:02:29,947 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:29,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:02:29,948 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 18:02:29,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:29,948 INFO L85 PathProgramCache]: Analyzing trace with hash 2124376457, now seen corresponding path program 1 times [2022-11-25 18:02:29,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:29,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150929714] [2022-11-25 18:02:29,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:29,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:30,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:02:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:30,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 18:02:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:30,193 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 18:02:30,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:30,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150929714] [2022-11-25 18:02:30,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150929714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:30,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:30,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:02:30,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157364211] [2022-11-25 18:02:30,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:30,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:02:30,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:30,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:02:30,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:02:30,205 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:02:30,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:02:30,228 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2022-11-25 18:02:30,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:02:30,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-25 18:02:30,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:02:30,232 INFO L225 Difference]: With dead ends: 33 [2022-11-25 18:02:30,232 INFO L226 Difference]: Without dead ends: 32 [2022-11-25 18:02:30,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:02:30,236 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 8 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:02:30,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 57 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:02:30,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-25 18:02:30,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-25 18:02:30,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 27 states have internal predecessors, (28), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 18:02:30,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2022-11-25 18:02:30,249 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 21 [2022-11-25 18:02:30,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:02:30,250 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2022-11-25 18:02:30,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:02:30,250 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2022-11-25 18:02:30,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 18:02:30,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:02:30,252 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:30,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:02:30,253 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 18:02:30,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:30,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1444490322, now seen corresponding path program 1 times [2022-11-25 18:02:30,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:30,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694827201] [2022-11-25 18:02:30,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:30,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:30,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:02:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:30,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 18:02:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:30,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 18:02:30,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:30,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694827201] [2022-11-25 18:02:30,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694827201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:30,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:30,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:02:30,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994394554] [2022-11-25 18:02:30,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:30,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:02:30,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:30,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:02:30,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:02:30,363 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:02:30,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:02:30,391 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2022-11-25 18:02:30,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:02:30,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-25 18:02:30,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:02:30,395 INFO L225 Difference]: With dead ends: 46 [2022-11-25 18:02:30,396 INFO L226 Difference]: Without dead ends: 39 [2022-11-25 18:02:30,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:02:30,397 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 21 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:02:30,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 62 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:02:30,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-25 18:02:30,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-25 18:02:30,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 31 states have internal predecessors, (33), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 18:02:30,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-11-25 18:02:30,412 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 22 [2022-11-25 18:02:30,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:02:30,412 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-11-25 18:02:30,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:02:30,413 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-11-25 18:02:30,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 18:02:30,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:02:30,414 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:30,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:02:30,414 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 18:02:30,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:30,415 INFO L85 PathProgramCache]: Analyzing trace with hash 644058785, now seen corresponding path program 1 times [2022-11-25 18:02:30,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:30,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739587977] [2022-11-25 18:02:30,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:30,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:30,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:02:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:30,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 18:02:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:30,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 18:02:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:30,524 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 18:02:30,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:30,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739587977] [2022-11-25 18:02:30,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739587977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:30,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:30,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:02:30,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235425182] [2022-11-25 18:02:30,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:30,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:02:30,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:30,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:02:30,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:02:30,527 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (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) [2022-11-25 18:02:30,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:02:30,544 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2022-11-25 18:02:30,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:02:30,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2022-11-25 18:02:30,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:02:30,547 INFO L225 Difference]: With dead ends: 39 [2022-11-25 18:02:30,547 INFO L226 Difference]: Without dead ends: 38 [2022-11-25 18:02:30,548 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 [2022-11-25 18:02:30,551 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 2 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:02:30,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 66 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:02:30,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-25 18:02:30,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-25 18:02:30,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 30 states have internal predecessors, (32), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 18:02:30,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-11-25 18:02:30,563 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 28 [2022-11-25 18:02:30,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:02:30,563 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-11-25 18:02:30,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (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) [2022-11-25 18:02:30,564 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-11-25 18:02:30,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-25 18:02:30,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:02:30,565 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:30,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:02:30,565 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 18:02:30,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:02:30,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1509014052, now seen corresponding path program 1 times [2022-11-25 18:02:30,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:02:30,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660909519] [2022-11-25 18:02:30,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:02:30,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:02:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:30,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:02:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:30,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 18:02:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:30,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 18:02:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:02:30,693 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 18:02:30,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:02:30,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660909519] [2022-11-25 18:02:30,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660909519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:02:30,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:02:30,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:02:30,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859330232] [2022-11-25 18:02:30,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:02:30,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:02:30,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:02:30,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:02:30,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:02:30,696 INFO L87 Difference]: Start difference. First operand 38 states and 42 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) [2022-11-25 18:02:30,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:02:30,706 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2022-11-25 18:02:30,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:02:30,707 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 29 [2022-11-25 18:02:30,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:02:30,709 INFO L225 Difference]: With dead ends: 38 [2022-11-25 18:02:30,709 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 18:02:30,710 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 [2022-11-25 18:02:30,712 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:02:30,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:02:30,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 18:02:30,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 18:02:30,715 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) [2022-11-25 18:02:30,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 18:02:30,715 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2022-11-25 18:02:30,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:02:30,715 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 18:02:30,718 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) [2022-11-25 18:02:30,718 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 18:02:30,718 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 18:02:30,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-25 18:02:30,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-25 18:02:30,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-25 18:02:30,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-25 18:02:30,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-25 18:02:30,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-25 18:02:30,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:02:30,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 18:02:30,775 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-25 18:02:30,776 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-25 18:02:30,776 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed. [2022-11-25 18:02:30,776 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed. [2022-11-25 18:02:30,776 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-25 18:02:30,777 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-25 18:02:30,777 INFO L899 garLoopResultBuilder]: For program point printIntLineFINAL(lines 1426 1429) no Hoare annotation was computed. [2022-11-25 18:02:30,777 INFO L902 garLoopResultBuilder]: At program point L1633(line 1633) the Hoare annotation is: true [2022-11-25 18:02:30,777 INFO L899 garLoopResultBuilder]: For program point L1633-1(line 1633) no Hoare annotation was computed. [2022-11-25 18:02:30,777 INFO L895 garLoopResultBuilder]: At program point L1567(line 1567) the Hoare annotation is: (and (= ~goodB2G1Static~0 0) (<= |ULTIMATE.start_goodB2G1Sink_~data#1| 2147483647)) [2022-11-25 18:02:30,778 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1585) no Hoare annotation was computed. [2022-11-25 18:02:30,778 INFO L899 garLoopResultBuilder]: For program point L1567-1(lines 1553 1569) no Hoare annotation was computed. [2022-11-25 18:02:30,778 INFO L895 garLoopResultBuilder]: At program point L1563(line 1563) the Hoare annotation is: (and (= ~goodB2G1Static~0 0) (<= |ULTIMATE.start_goodB2G1Sink_~data#1| 2147483647)) [2022-11-25 18:02:30,778 INFO L899 garLoopResultBuilder]: For program point L1559(lines 1559 1568) no Hoare annotation was computed. [2022-11-25 18:02:30,778 INFO L895 garLoopResultBuilder]: At program point L1555(line 1555) the Hoare annotation is: false [2022-11-25 18:02:30,779 INFO L899 garLoopResultBuilder]: For program point L1605(lines 1605 1612) no Hoare annotation was computed. [2022-11-25 18:02:30,779 INFO L902 garLoopResultBuilder]: At program point L1634(lines 1628 1635) the Hoare annotation is: true [2022-11-25 18:02:30,779 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 18:02:30,779 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1561) no Hoare annotation was computed. [2022-11-25 18:02:30,779 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 18:02:30,780 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1608) no Hoare annotation was computed. [2022-11-25 18:02:30,780 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 18:02:30,780 INFO L899 garLoopResultBuilder]: For program point L1622(lines 1622 1627) no Hoare annotation was computed. [2022-11-25 18:02:30,780 INFO L899 garLoopResultBuilder]: For program point L1585(line 1585) no Hoare annotation was computed. [2022-11-25 18:02:30,780 INFO L899 garLoopResultBuilder]: For program point L1585-1(line 1585) no Hoare annotation was computed. [2022-11-25 18:02:30,781 INFO L899 garLoopResultBuilder]: For program point L1614(lines 1614 1621) no Hoare annotation was computed. [2022-11-25 18:02:30,781 INFO L899 garLoopResultBuilder]: For program point L1581(lines 1581 1593) no Hoare annotation was computed. [2022-11-25 18:02:30,781 INFO L902 garLoopResultBuilder]: At program point L1610(line 1610) the Hoare annotation is: true [2022-11-25 18:02:30,781 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1561) no Hoare annotation was computed. [2022-11-25 18:02:30,781 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 18:02:30,781 INFO L895 garLoopResultBuilder]: At program point L1631(line 1631) the Hoare annotation is: (= ~goodB2G1Static~0 0) [2022-11-25 18:02:30,782 INFO L899 garLoopResultBuilder]: For program point L1631-1(line 1631) no Hoare annotation was computed. [2022-11-25 18:02:30,782 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1608) no Hoare annotation was computed. [2022-11-25 18:02:30,782 INFO L899 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2022-11-25 18:02:30,782 INFO L899 garLoopResultBuilder]: For program point L1561-1(line 1561) no Hoare annotation was computed. [2022-11-25 18:02:30,782 INFO L899 garLoopResultBuilder]: For program point L1553(lines 1553 1569) no Hoare annotation was computed. [2022-11-25 18:02:30,783 INFO L899 garLoopResultBuilder]: For program point L1603(lines 1603 1613) no Hoare annotation was computed. [2022-11-25 18:02:30,783 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1585) no Hoare annotation was computed. [2022-11-25 18:02:30,783 INFO L899 garLoopResultBuilder]: For program point L1595(lines 1595 1602) no Hoare annotation was computed. [2022-11-25 18:02:30,783 INFO L895 garLoopResultBuilder]: At program point L1591(line 1591) the Hoare annotation is: (and (= ~goodB2G2Static~0 1) (<= |ULTIMATE.start_goodB2G2Sink_~data#1| 2147483647) (= ~goodB2G1Static~0 0) (<= |ULTIMATE.start_goodB2G1Sink_~data#1| 2147483647)) [2022-11-25 18:02:30,783 INFO L895 garLoopResultBuilder]: At program point L1587(line 1587) the Hoare annotation is: (and (= ~goodB2G2Static~0 1) (<= |ULTIMATE.start_goodB2G2Sink_~data#1| 2147483647) (= ~goodB2G1Static~0 0) (<= |ULTIMATE.start_goodB2G1Sink_~data#1| 2147483647)) [2022-11-25 18:02:30,784 INFO L899 garLoopResultBuilder]: For program point L1583(lines 1583 1592) no Hoare annotation was computed. [2022-11-25 18:02:30,784 INFO L899 garLoopResultBuilder]: For program point L1579(lines 1579 1594) no Hoare annotation was computed. [2022-11-25 18:02:30,784 INFO L899 garLoopResultBuilder]: For program point L1608(line 1608) no Hoare annotation was computed. [2022-11-25 18:02:30,784 INFO L899 garLoopResultBuilder]: For program point L1608-1(line 1608) no Hoare annotation was computed. [2022-11-25 18:02:30,784 INFO L899 garLoopResultBuilder]: For program point L1571(lines 1571 1578) no Hoare annotation was computed. [2022-11-25 18:02:30,788 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:02:30,790 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:02:30,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:02:30 BoogieIcfgContainer [2022-11-25 18:02:30,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:02:30,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:02:30,799 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:02:30,799 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:02:30,800 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:02:28" (3/4) ... [2022-11-25 18:02:30,803 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:02:30,809 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-25 18:02:30,810 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-25 18:02:30,814 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-25 18:02:30,815 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-25 18:02:30,815 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 18:02:30,815 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:02:30,852 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:02:30,853 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:02:30,853 INFO L158 Benchmark]: Toolchain (without parser) took 4153.26ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 129.6MB in the beginning and 89.7MB in the end (delta: 39.9MB). Peak memory consumption was 70.1MB. Max. memory is 16.1GB. [2022-11-25 18:02:30,854 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:02:30,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1264.99ms. Allocated memory is still 165.7MB. Free memory was 129.6MB in the beginning and 82.7MB in the end (delta: 46.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-25 18:02:30,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.06ms. Allocated memory is still 165.7MB. Free memory was 81.8MB in the beginning and 78.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:02:30,855 INFO L158 Benchmark]: Boogie Preprocessor took 27.78ms. Allocated memory is still 165.7MB. Free memory was 78.9MB in the beginning and 77.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:02:30,855 INFO L158 Benchmark]: RCFGBuilder took 540.19ms. Allocated memory is still 165.7MB. Free memory was 77.6MB in the beginning and 62.1MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 18:02:30,856 INFO L158 Benchmark]: TraceAbstraction took 2174.76ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 61.7MB in the beginning and 92.8MB in the end (delta: -31.1MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2022-11-25 18:02:30,856 INFO L158 Benchmark]: Witness Printer took 54.15ms. Allocated memory is still 199.2MB. Free memory was 92.8MB in the beginning and 89.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:02:30,858 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1264.99ms. Allocated memory is still 165.7MB. Free memory was 129.6MB in the beginning and 82.7MB in the end (delta: 46.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.06ms. Allocated memory is still 165.7MB. Free memory was 81.8MB in the beginning and 78.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.78ms. Allocated memory is still 165.7MB. Free memory was 78.9MB in the beginning and 77.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 540.19ms. Allocated memory is still 165.7MB. Free memory was 77.6MB in the beginning and 62.1MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2174.76ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 61.7MB in the beginning and 92.8MB in the end (delta: -31.1MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * Witness Printer took 54.15ms. Allocated memory is still 199.2MB. Free memory was 92.8MB in the beginning and 89.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1608]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1608]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 46 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 91 mSDsluCounter, 516 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 205 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 311 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 24, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 19 PreInvPairs, 21 NumberOfFragments, 49 HoareAnnotationTreeSize, 19 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 40/40 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 6 specifications checked. All of them hold - InvariantResult [Line: 1628]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-25 18:02:30,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af23b813-3903-425e-8681-49ad422b22ca/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE