./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 715908359373978289cc76ce2f00faf49f4d4a3c6ddae64771646fc969bea981 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:23:55,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:23:55,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:23:55,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:23:55,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:23:55,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:23:55,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:23:55,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:23:55,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:23:55,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:23:55,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:23:55,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:23:55,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:23:55,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:23:55,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:23:55,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:23:55,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:23:55,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:23:55,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:23:55,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:23:55,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:23:55,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:23:55,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:23:55,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:23:55,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:23:55,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:23:55,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:23:55,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:23:55,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:23:55,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:23:55,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:23:55,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:23:55,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:23:55,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:23:55,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:23:55,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:23:55,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:23:55,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:23:55,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:23:55,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:23:55,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:23:55,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 12:23:55,965 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:23:55,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:23:55,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:23:55,967 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:23:55,968 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:23:55,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:23:55,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:23:55,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:23:55,970 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:23:55,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:23:55,972 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:23:55,972 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:23:55,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:23:55,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:23:55,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:23:55,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:23:55,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:23:55,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:23:55,974 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 12:23:55,975 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:23:55,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:23:55,975 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:23:55,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:23:55,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:23:55,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:23:55,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:23:55,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:23:55,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:23:55,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:23:55,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:23:55,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:23:55,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:23:55,979 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:23:55,980 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:23:55,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:23:55,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 715908359373978289cc76ce2f00faf49f4d4a3c6ddae64771646fc969bea981 [2022-11-20 12:23:56,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:23:56,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:23:56,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:23:56,401 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:23:56,402 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:23:56,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c [2022-11-20 12:24:00,357 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:24:00,609 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:24:00,610 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/sv-benchmarks/c/recursive-simple/id_i15_o15-1.c [2022-11-20 12:24:00,616 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/data/aa19f9768/7c51b6085ab141beb245b9811f79ab0d/FLAGf0f831d48 [2022-11-20 12:24:00,633 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/data/aa19f9768/7c51b6085ab141beb245b9811f79ab0d [2022-11-20 12:24:00,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:24:00,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:24:00,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:24:00,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:24:00,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:24:00,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:24:00" (1/1) ... [2022-11-20 12:24:00,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc0ab76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:00, skipping insertion in model container [2022-11-20 12:24:00,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:24:00" (1/1) ... [2022-11-20 12:24:00,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:24:00,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:24:00,865 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/sv-benchmarks/c/recursive-simple/id_i15_o15-1.c[454,467] [2022-11-20 12:24:00,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:24:00,879 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:24:00,893 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/sv-benchmarks/c/recursive-simple/id_i15_o15-1.c[454,467] [2022-11-20 12:24:00,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:24:00,907 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:24:00,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:00 WrapperNode [2022-11-20 12:24:00,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:24:00,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:24:00,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:24:00,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:24:00,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:00" (1/1) ... [2022-11-20 12:24:00,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:00" (1/1) ... [2022-11-20 12:24:00,944 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-11-20 12:24:00,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:24:00,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:24:00,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:24:00,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:24:00,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:00" (1/1) ... [2022-11-20 12:24:00,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:00" (1/1) ... [2022-11-20 12:24:00,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:00" (1/1) ... [2022-11-20 12:24:00,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:00" (1/1) ... [2022-11-20 12:24:00,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:00" (1/1) ... [2022-11-20 12:24:00,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:00" (1/1) ... [2022-11-20 12:24:00,972 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:00" (1/1) ... [2022-11-20 12:24:00,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:00" (1/1) ... [2022-11-20 12:24:00,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:24:00,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:24:00,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:24:00,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:24:00,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:00" (1/1) ... [2022-11-20 12:24:00,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:24:01,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:24:01,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:24:01,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:24:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:24:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:24:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:24:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:24:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-11-20 12:24:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-11-20 12:24:01,157 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:24:01,160 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:24:01,296 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:24:01,305 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:24:01,305 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:24:01,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:24:01 BoogieIcfgContainer [2022-11-20 12:24:01,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:24:01,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:24:01,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:24:01,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:24:01,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:24:00" (1/3) ... [2022-11-20 12:24:01,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ec318a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:24:01, skipping insertion in model container [2022-11-20 12:24:01,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:24:00" (2/3) ... [2022-11-20 12:24:01,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ec318a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:24:01, skipping insertion in model container [2022-11-20 12:24:01,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:24:01" (3/3) ... [2022-11-20 12:24:01,320 INFO L112 eAbstractionObserver]: Analyzing ICFG id_i15_o15-1.c [2022-11-20 12:24:01,346 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:24:01,347 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 12:24:01,473 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:24:01,498 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;@3299596a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:24:01,499 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 12:24:01,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 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) [2022-11-20 12:24:01,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 12:24:01,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:01,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 12:24:01,548 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 12:24:01,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:01,571 INFO L85 PathProgramCache]: Analyzing trace with hash 890289268, now seen corresponding path program 1 times [2022-11-20 12:24:01,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:01,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922404537] [2022-11-20 12:24:01,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:01,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:24:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:02,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:24:02,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:24:02,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922404537] [2022-11-20 12:24:02,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922404537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:24:02,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:24:02,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:24:02,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055170478] [2022-11-20 12:24:02,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:24:02,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:24:02,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:24:02,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:24:02,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:24:02,074 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:24:02,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:02,246 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2022-11-20 12:24:02,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:24:02,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-20 12:24:02,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:02,264 INFO L225 Difference]: With dead ends: 45 [2022-11-20 12:24:02,264 INFO L226 Difference]: Without dead ends: 27 [2022-11-20 12:24:02,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:24:02,276 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 23 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:02,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 68 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:24:02,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-20 12:24:02,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2022-11-20 12:24:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:24:02,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-11-20 12:24:02,339 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 6 [2022-11-20 12:24:02,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:02,340 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-11-20 12:24:02,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:24:02,342 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-11-20 12:24:02,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 12:24:02,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:02,344 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:24:02,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:24:02,345 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 12:24:02,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:02,349 INFO L85 PathProgramCache]: Analyzing trace with hash 218045489, now seen corresponding path program 1 times [2022-11-20 12:24:02,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:02,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367819261] [2022-11-20 12:24:02,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:02,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:24:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:02,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:24:02,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:24:02,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367819261] [2022-11-20 12:24:02,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367819261] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:24:02,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583701656] [2022-11-20 12:24:02,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:02,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:02,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:24:02,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:24:02,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:24:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:02,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:24:02,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:02,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:24:02,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:24:02,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583701656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:24:02,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:24:02,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-11-20 12:24:02,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300559371] [2022-11-20 12:24:02,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:24:02,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:24:02,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:24:02,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:24:02,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:24:02,905 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:24:03,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:03,002 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-11-20 12:24:03,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:24:03,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 12:24:03,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:03,004 INFO L225 Difference]: With dead ends: 27 [2022-11-20 12:24:03,005 INFO L226 Difference]: Without dead ends: 26 [2022-11-20 12:24:03,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:24:03,007 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 42 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:03,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 38 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:24:03,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-20 12:24:03,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-11-20 12:24:03,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:24:03,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-11-20 12:24:03,018 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 11 [2022-11-20 12:24:03,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:03,018 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-20 12:24:03,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:24:03,019 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-11-20 12:24:03,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 12:24:03,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:03,020 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 12:24:03,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:24:03,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:03,227 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 12:24:03,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:03,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1830524380, now seen corresponding path program 1 times [2022-11-20 12:24:03,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:03,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894296737] [2022-11-20 12:24:03,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:03,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:24:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:03,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:24:03,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:24:03,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894296737] [2022-11-20 12:24:03,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894296737] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:24:03,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389948452] [2022-11-20 12:24:03,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:03,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:03,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:24:03,393 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:24:03,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:24:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:03,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:24:03,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:03,534 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:24:03,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:24:03,644 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:24:03,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389948452] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:24:03,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:24:03,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2022-11-20 12:24:03,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590886925] [2022-11-20 12:24:03,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:24:03,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 12:24:03,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:24:03,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 12:24:03,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:24:03,652 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 15 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:24:03,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:03,886 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2022-11-20 12:24:03,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:24:03,887 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-20 12:24:03,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:03,893 INFO L225 Difference]: With dead ends: 74 [2022-11-20 12:24:03,893 INFO L226 Difference]: Without dead ends: 66 [2022-11-20 12:24:03,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2022-11-20 12:24:03,899 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 122 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:03,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 99 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:24:03,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-20 12:24:03,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2022-11-20 12:24:03,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 12:24:03,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2022-11-20 12:24:03,938 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 12 [2022-11-20 12:24:03,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:03,938 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2022-11-20 12:24:03,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:24:03,939 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2022-11-20 12:24:03,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 12:24:03,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:03,941 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:24:03,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:24:04,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:04,152 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 12:24:04,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:04,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1359868900, now seen corresponding path program 1 times [2022-11-20 12:24:04,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:04,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919011666] [2022-11-20 12:24:04,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:04,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:24:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:04,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 12:24:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:04,248 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 12:24:04,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:24:04,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919011666] [2022-11-20 12:24:04,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919011666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:24:04,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:24:04,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:24:04,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382860178] [2022-11-20 12:24:04,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:24:04,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:24:04,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:24:04,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:24:04,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:24:04,252 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:24:04,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:04,276 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2022-11-20 12:24:04,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:24:04,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-20 12:24:04,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:04,279 INFO L225 Difference]: With dead ends: 74 [2022-11-20 12:24:04,279 INFO L226 Difference]: Without dead ends: 72 [2022-11-20 12:24:04,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:24:04,281 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:04,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 38 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:24:04,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-20 12:24:04,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-11-20 12:24:04,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-20 12:24:04,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2022-11-20 12:24:04,295 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2022-11-20 12:24:04,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:04,295 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2022-11-20 12:24:04,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:24:04,296 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2022-11-20 12:24:04,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 12:24:04,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:04,297 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:24:04,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:24:04,298 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 12:24:04,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:04,299 INFO L85 PathProgramCache]: Analyzing trace with hash -2128706883, now seen corresponding path program 1 times [2022-11-20 12:24:04,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:04,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537212329] [2022-11-20 12:24:04,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:04,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:24:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:04,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 12:24:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:04,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:04,484 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 12:24:04,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:24:04,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537212329] [2022-11-20 12:24:04,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537212329] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:24:04,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512633017] [2022-11-20 12:24:04,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:04,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:04,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:24:04,487 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:24:04,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 12:24:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:04,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:24:04,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:04,732 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 12:24:04,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:24:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 12:24:05,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512633017] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:24:05,045 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:24:05,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 18 [2022-11-20 12:24:05,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635634302] [2022-11-20 12:24:05,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:24:05,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 12:24:05,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:24:05,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 12:24:05,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:24:05,049 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-20 12:24:05,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:05,361 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2022-11-20 12:24:05,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 12:24:05,365 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 24 [2022-11-20 12:24:05,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:05,369 INFO L225 Difference]: With dead ends: 101 [2022-11-20 12:24:05,369 INFO L226 Difference]: Without dead ends: 79 [2022-11-20 12:24:05,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2022-11-20 12:24:05,374 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 93 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:05,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 94 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:24:05,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-20 12:24:05,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2022-11-20 12:24:05,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 56 states have internal predecessors, (67), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (10), 10 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-20 12:24:05,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2022-11-20 12:24:05,398 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 24 [2022-11-20 12:24:05,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:05,399 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2022-11-20 12:24:05,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-20 12:24:05,399 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2022-11-20 12:24:05,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:24:05,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:05,400 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-20 12:24:05,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:24:05,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:05,601 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 12:24:05,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:05,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1294342655, now seen corresponding path program 2 times [2022-11-20 12:24:05,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:05,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134147578] [2022-11-20 12:24:05,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:05,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:24:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:05,811 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:24:05,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:24:05,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134147578] [2022-11-20 12:24:05,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134147578] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:24:05,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871489128] [2022-11-20 12:24:05,813 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:24:05,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:05,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:24:05,814 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:24:05,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 12:24:05,876 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:24:05,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:24:05,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 12:24:05,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:05,955 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:24:05,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:24:06,224 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:24:06,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871489128] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:24:06,225 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:24:06,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2022-11-20 12:24:06,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093124676] [2022-11-20 12:24:06,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:24:06,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 12:24:06,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:24:06,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 12:24:06,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2022-11-20 12:24:06,228 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 27 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 16 states have internal predecessors, (48), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:24:06,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:06,746 INFO L93 Difference]: Finished difference Result 220 states and 236 transitions. [2022-11-20 12:24:06,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-20 12:24:06,747 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 16 states have internal predecessors, (48), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-20 12:24:06,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:06,749 INFO L225 Difference]: With dead ends: 220 [2022-11-20 12:24:06,749 INFO L226 Difference]: Without dead ends: 197 [2022-11-20 12:24:06,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=419, Invalid=1221, Unknown=0, NotChecked=0, Total=1640 [2022-11-20 12:24:06,753 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 262 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:06,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 235 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:24:06,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-20 12:24:06,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 177. [2022-11-20 12:24:06,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 139 states have (on average 1.2014388489208634) internal successors, (167), 139 states have internal predecessors, (167), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-11-20 12:24:06,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 205 transitions. [2022-11-20 12:24:06,801 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 205 transitions. Word has length 27 [2022-11-20 12:24:06,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:06,802 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 205 transitions. [2022-11-20 12:24:06,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 16 states have internal predecessors, (48), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:24:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 205 transitions. [2022-11-20 12:24:06,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-20 12:24:06,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:06,805 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 12:24:06,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:24:07,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:07,011 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 12:24:07,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:07,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1697859681, now seen corresponding path program 1 times [2022-11-20 12:24:07,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:07,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901094436] [2022-11-20 12:24:07,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:07,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:24:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:07,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-20 12:24:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:07,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:07,069 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-20 12:24:07,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:24:07,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901094436] [2022-11-20 12:24:07,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901094436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:24:07,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:24:07,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:24:07,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754761247] [2022-11-20 12:24:07,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:24:07,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:24:07,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:24:07,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:24:07,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:24:07,073 INFO L87 Difference]: Start difference. First operand 177 states and 205 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, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:24:07,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:07,086 INFO L93 Difference]: Finished difference Result 177 states and 205 transitions. [2022-11-20 12:24:07,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:24:07,087 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, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-11-20 12:24:07,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:07,089 INFO L225 Difference]: With dead ends: 177 [2022-11-20 12:24:07,089 INFO L226 Difference]: Without dead ends: 175 [2022-11-20 12:24:07,090 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 [2022-11-20 12:24:07,091 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:07,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:24:07,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-20 12:24:07,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-11-20 12:24:07,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.1231884057971016) internal successors, (155), 137 states have internal predecessors, (155), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-11-20 12:24:07,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 193 transitions. [2022-11-20 12:24:07,107 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 193 transitions. Word has length 40 [2022-11-20 12:24:07,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:07,107 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 193 transitions. [2022-11-20 12:24:07,108 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, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:24:07,108 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 193 transitions. [2022-11-20 12:24:07,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-20 12:24:07,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:07,110 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-11-20 12:24:07,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:24:07,110 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 12:24:07,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:07,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1883083449, now seen corresponding path program 2 times [2022-11-20 12:24:07,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:07,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931308385] [2022-11-20 12:24:07,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:07,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:24:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:07,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 12:24:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:07,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:07,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:07,424 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 62 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 12:24:07,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:24:07,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931308385] [2022-11-20 12:24:07,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931308385] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:24:07,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821784407] [2022-11-20 12:24:07,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:24:07,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:07,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:24:07,429 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:24:07,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 12:24:07,497 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:24:07,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:24:07,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 12:24:07,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:07,658 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 12:24:07,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:24:08,180 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 66 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 12:24:08,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821784407] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:24:08,181 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:24:08,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 15] total 29 [2022-11-20 12:24:08,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906147968] [2022-11-20 12:24:08,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:24:08,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-20 12:24:08,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:24:08,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-20 12:24:08,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2022-11-20 12:24:08,183 INFO L87 Difference]: Start difference. First operand 175 states and 193 transitions. Second operand has 29 states, 26 states have (on average 2.5) internal successors, (65), 22 states have internal predecessors, (65), 14 states have call successors, (14), 8 states have call predecessors, (14), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) [2022-11-20 12:24:08,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:08,503 INFO L93 Difference]: Finished difference Result 224 states and 241 transitions. [2022-11-20 12:24:08,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 12:24:08,504 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 2.5) internal successors, (65), 22 states have internal predecessors, (65), 14 states have call successors, (14), 8 states have call predecessors, (14), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) Word has length 44 [2022-11-20 12:24:08,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:08,509 INFO L225 Difference]: With dead ends: 224 [2022-11-20 12:24:08,510 INFO L226 Difference]: Without dead ends: 157 [2022-11-20 12:24:08,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 74 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=303, Invalid=1179, Unknown=0, NotChecked=0, Total=1482 [2022-11-20 12:24:08,513 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 165 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:08,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 281 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:24:08,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-20 12:24:08,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 139. [2022-11-20 12:24:08,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 110 states have (on average 1.1181818181818182) internal successors, (123), 109 states have internal predecessors, (123), 12 states have call successors, (12), 11 states have call predecessors, (12), 15 states have return successors, (18), 18 states have call predecessors, (18), 11 states have call successors, (18) [2022-11-20 12:24:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 153 transitions. [2022-11-20 12:24:08,537 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 153 transitions. Word has length 44 [2022-11-20 12:24:08,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:08,540 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 153 transitions. [2022-11-20 12:24:08,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 2.5) internal successors, (65), 22 states have internal predecessors, (65), 14 states have call successors, (14), 8 states have call predecessors, (14), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) [2022-11-20 12:24:08,540 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 153 transitions. [2022-11-20 12:24:08,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-20 12:24:08,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:08,545 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1] [2022-11-20 12:24:08,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:24:08,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 12:24:08,752 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 12:24:08,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:08,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1160556449, now seen corresponding path program 3 times [2022-11-20 12:24:08,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:08,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125524337] [2022-11-20 12:24:08,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:08,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:24:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:09,411 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:24:09,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:24:09,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125524337] [2022-11-20 12:24:09,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125524337] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:24:09,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901445849] [2022-11-20 12:24:09,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:24:09,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:09,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:24:09,415 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:24:09,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 12:24:09,501 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-20 12:24:09,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:24:09,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 12:24:09,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:09,680 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:24:09,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:24:10,401 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:24:10,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901445849] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:24:10,402 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:24:10,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 50 [2022-11-20 12:24:10,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912498178] [2022-11-20 12:24:10,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:24:10,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-11-20 12:24:10,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:24:10,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-11-20 12:24:10,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=608, Invalid=1942, Unknown=0, NotChecked=0, Total=2550 [2022-11-20 12:24:10,405 INFO L87 Difference]: Start difference. First operand 139 states and 153 transitions. Second operand has 51 states, 47 states have (on average 2.0425531914893615) internal successors, (96), 28 states have internal predecessors, (96), 24 states have call successors, (24), 23 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:24:11,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:11,692 INFO L93 Difference]: Finished difference Result 431 states and 464 transitions. [2022-11-20 12:24:11,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-20 12:24:11,693 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 47 states have (on average 2.0425531914893615) internal successors, (96), 28 states have internal predecessors, (96), 24 states have call successors, (24), 23 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-11-20 12:24:11,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:11,695 INFO L225 Difference]: With dead ends: 431 [2022-11-20 12:24:11,695 INFO L226 Difference]: Without dead ends: 371 [2022-11-20 12:24:11,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1523 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1796, Invalid=5010, Unknown=0, NotChecked=0, Total=6806 [2022-11-20 12:24:11,699 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 579 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:11,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 590 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:24:11,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-11-20 12:24:11,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 349. [2022-11-20 12:24:11,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 276 states have (on average 1.1268115942028984) internal successors, (311), 275 states have internal predecessors, (311), 24 states have call successors, (24), 23 states have call predecessors, (24), 47 states have return successors, (50), 50 states have call predecessors, (50), 23 states have call successors, (50) [2022-11-20 12:24:11,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 385 transitions. [2022-11-20 12:24:11,717 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 385 transitions. Word has length 57 [2022-11-20 12:24:11,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:11,717 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 385 transitions. [2022-11-20 12:24:11,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 47 states have (on average 2.0425531914893615) internal successors, (96), 28 states have internal predecessors, (96), 24 states have call successors, (24), 23 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:24:11,718 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 385 transitions. [2022-11-20 12:24:11,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-20 12:24:11,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:11,719 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-11-20 12:24:11,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-20 12:24:11,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:11,932 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 12:24:11,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:11,932 INFO L85 PathProgramCache]: Analyzing trace with hash 292034471, now seen corresponding path program 3 times [2022-11-20 12:24:11,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:11,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219291901] [2022-11-20 12:24:11,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:11,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:24:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:12,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:24:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:12,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:12,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:12,425 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 4 proven. 299 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 12:24:12,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:24:12,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219291901] [2022-11-20 12:24:12,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219291901] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:24:12,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956568548] [2022-11-20 12:24:12,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:24:12,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:12,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:24:12,427 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:24:12,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 12:24:12,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-20 12:24:12,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:24:12,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:24:12,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:12,624 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-20 12:24:12,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:24:12,911 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-20 12:24:12,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956568548] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:24:12,911 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:24:12,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 7, 7] total 38 [2022-11-20 12:24:12,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548688230] [2022-11-20 12:24:12,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:24:12,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-20 12:24:12,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:24:12,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-20 12:24:12,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1226, Unknown=0, NotChecked=0, Total=1406 [2022-11-20 12:24:12,915 INFO L87 Difference]: Start difference. First operand 349 states and 385 transitions. Second operand has 38 states, 37 states have (on average 2.27027027027027) internal successors, (84), 29 states have internal predecessors, (84), 12 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-20 12:24:14,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:14,176 INFO L93 Difference]: Finished difference Result 702 states and 802 transitions. [2022-11-20 12:24:14,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-20 12:24:14,177 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.27027027027027) internal successors, (84), 29 states have internal predecessors, (84), 12 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2022-11-20 12:24:14,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:14,180 INFO L225 Difference]: With dead ends: 702 [2022-11-20 12:24:14,180 INFO L226 Difference]: Without dead ends: 647 [2022-11-20 12:24:14,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=742, Invalid=4660, Unknown=0, NotChecked=0, Total=5402 [2022-11-20 12:24:14,184 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 389 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:14,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 332 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:24:14,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-11-20 12:24:14,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 638. [2022-11-20 12:24:14,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 509 states have (on average 1.0667976424361494) internal successors, (543), 504 states have internal predecessors, (543), 24 states have call successors, (24), 23 states have call predecessors, (24), 103 states have return successors, (110), 110 states have call predecessors, (110), 23 states have call successors, (110) [2022-11-20 12:24:14,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 677 transitions. [2022-11-20 12:24:14,210 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 677 transitions. Word has length 74 [2022-11-20 12:24:14,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:14,211 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 677 transitions. [2022-11-20 12:24:14,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.27027027027027) internal successors, (84), 29 states have internal predecessors, (84), 12 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-20 12:24:14,211 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 677 transitions. [2022-11-20 12:24:14,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 12:24:14,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:14,213 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-11-20 12:24:14,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:24:14,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 12:24:14,424 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 12:24:14,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:14,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1383014436, now seen corresponding path program 4 times [2022-11-20 12:24:14,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:14,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858572088] [2022-11-20 12:24:14,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:14,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:24:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:14,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:24:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:14,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:14,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:14,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:15,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:15,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:15,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 12 proven. 360 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-20 12:24:15,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:24:15,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858572088] [2022-11-20 12:24:15,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858572088] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:24:15,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515463707] [2022-11-20 12:24:15,168 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 12:24:15,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:15,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:24:15,169 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:24:15,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 12:24:15,260 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 12:24:15,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:24:15,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-20 12:24:15,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:15,498 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 12 proven. 354 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-20 12:24:15,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:24:17,618 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 12 proven. 420 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-20 12:24:17,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515463707] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:24:17,618 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:24:17,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 29] total 41 [2022-11-20 12:24:17,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304587191] [2022-11-20 12:24:17,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:24:17,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-20 12:24:17,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:24:17,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-20 12:24:17,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=1336, Unknown=0, NotChecked=0, Total=1640 [2022-11-20 12:24:17,620 INFO L87 Difference]: Start difference. First operand 638 states and 677 transitions. Second operand has 41 states, 38 states have (on average 2.763157894736842) internal successors, (105), 32 states have internal predecessors, (105), 20 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (20), 7 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 12:24:18,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:18,118 INFO L93 Difference]: Finished difference Result 729 states and 767 transitions. [2022-11-20 12:24:18,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 12:24:18,119 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 38 states have (on average 2.763157894736842) internal successors, (105), 32 states have internal predecessors, (105), 20 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (20), 7 states have call predecessors, (20), 10 states have call successors, (20) Word has length 99 [2022-11-20 12:24:18,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:18,123 INFO L225 Difference]: With dead ends: 729 [2022-11-20 12:24:18,123 INFO L226 Difference]: Without dead ends: 601 [2022-11-20 12:24:18,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 178 SyntacticMatches, 15 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1154 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=662, Invalid=2530, Unknown=0, NotChecked=0, Total=3192 [2022-11-20 12:24:18,128 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 438 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:18,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 516 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:24:18,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-11-20 12:24:18,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 551. [2022-11-20 12:24:18,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 440 states have (on average 1.0704545454545455) internal successors, (471), 435 states have internal predecessors, (471), 24 states have call successors, (24), 23 states have call predecessors, (24), 85 states have return successors, (92), 92 states have call predecessors, (92), 23 states have call successors, (92) [2022-11-20 12:24:18,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 587 transitions. [2022-11-20 12:24:18,162 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 587 transitions. Word has length 99 [2022-11-20 12:24:18,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:18,167 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 587 transitions. [2022-11-20 12:24:18,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 38 states have (on average 2.763157894736842) internal successors, (105), 32 states have internal predecessors, (105), 20 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (20), 7 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-20 12:24:18,167 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 587 transitions. [2022-11-20 12:24:18,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-20 12:24:18,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:18,173 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1] [2022-11-20 12:24:18,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-20 12:24:18,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:18,379 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 12:24:18,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:18,380 INFO L85 PathProgramCache]: Analyzing trace with hash 848460513, now seen corresponding path program 4 times [2022-11-20 12:24:18,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:18,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563103815] [2022-11-20 12:24:18,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:18,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:24:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:19,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:24:19,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:24:19,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563103815] [2022-11-20 12:24:19,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563103815] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:24:19,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035880309] [2022-11-20 12:24:19,794 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 12:24:19,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:19,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:24:19,801 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:24:19,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 12:24:19,931 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 12:24:19,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:24:19,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-20 12:24:19,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:20,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:24:20,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:24:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:24:22,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035880309] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:24:22,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:24:22,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 98 [2022-11-20 12:24:22,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701439012] [2022-11-20 12:24:22,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:24:22,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-11-20 12:24:22,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:24:22,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-11-20 12:24:22,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2360, Invalid=7342, Unknown=0, NotChecked=0, Total=9702 [2022-11-20 12:24:22,550 INFO L87 Difference]: Start difference. First operand 551 states and 587 transitions. Second operand has 99 states, 95 states have (on average 2.0210526315789474) internal successors, (192), 52 states have internal predecessors, (192), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:24:23,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:23,290 INFO L93 Difference]: Finished difference Result 566 states and 587 transitions. [2022-11-20 12:24:23,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-20 12:24:23,291 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 95 states have (on average 2.0210526315789474) internal successors, (192), 52 states have internal predecessors, (192), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-11-20 12:24:23,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:23,296 INFO L225 Difference]: With dead ends: 566 [2022-11-20 12:24:23,296 INFO L226 Difference]: Without dead ends: 565 [2022-11-20 12:24:23,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3218 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=3827, Invalid=9513, Unknown=0, NotChecked=0, Total=13340 [2022-11-20 12:24:23,301 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 591 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:23,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 513 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:24:23,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-11-20 12:24:23,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 550. [2022-11-20 12:24:23,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 440 states have (on average 1.0681818181818181) internal successors, (470), 434 states have internal predecessors, (470), 24 states have call successors, (24), 23 states have call predecessors, (24), 85 states have return successors, (92), 92 states have call predecessors, (92), 23 states have call successors, (92) [2022-11-20 12:24:23,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 586 transitions. [2022-11-20 12:24:23,325 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 586 transitions. Word has length 117 [2022-11-20 12:24:23,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:23,325 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 586 transitions. [2022-11-20 12:24:23,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 95 states have (on average 2.0210526315789474) internal successors, (192), 52 states have internal predecessors, (192), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:24:23,326 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 586 transitions. [2022-11-20 12:24:23,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-20 12:24:23,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:23,330 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-11-20 12:24:23,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:24:23,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:23,536 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 12:24:23,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:23,537 INFO L85 PathProgramCache]: Analyzing trace with hash -478542937, now seen corresponding path program 5 times [2022-11-20 12:24:23,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:23,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324595020] [2022-11-20 12:24:23,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:23,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:24:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:23,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 12:24:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:23,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:23,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:23,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:23,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:24,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:24,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:24,116 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 15 proven. 99 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-11-20 12:24:24,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:24:24,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324595020] [2022-11-20 12:24:24,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324595020] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:24:24,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623659413] [2022-11-20 12:24:24,118 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 12:24:24,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:24,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:24:24,123 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:24:24,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 12:24:24,253 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2022-11-20 12:24:24,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:24:24,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 12:24:24,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:24,341 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-11-20 12:24:24,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:24:25,807 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-11-20 12:24:25,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623659413] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:24:25,808 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:24:25,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2022-11-20 12:24:25,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874852767] [2022-11-20 12:24:25,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:24:25,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-20 12:24:25,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:24:25,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-20 12:24:25,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2022-11-20 12:24:25,810 INFO L87 Difference]: Start difference. First operand 550 states and 586 transitions. Second operand has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 12:24:26,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:26,207 INFO L93 Difference]: Finished difference Result 1267 states and 1458 transitions. [2022-11-20 12:24:26,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-20 12:24:26,207 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) Word has length 114 [2022-11-20 12:24:26,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:26,212 INFO L225 Difference]: With dead ends: 1267 [2022-11-20 12:24:26,212 INFO L226 Difference]: Without dead ends: 1266 [2022-11-20 12:24:26,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=751, Invalid=2909, Unknown=0, NotChecked=0, Total=3660 [2022-11-20 12:24:26,215 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 78 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:26,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 63 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:24:26,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2022-11-20 12:24:26,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1266. [2022-11-20 12:24:26,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1016 states have (on average 1.029527559055118) internal successors, (1046), 1002 states have internal predecessors, (1046), 24 states have call successors, (24), 23 states have call predecessors, (24), 225 states have return successors, (240), 240 states have call predecessors, (240), 23 states have call successors, (240) [2022-11-20 12:24:26,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1310 transitions. [2022-11-20 12:24:26,251 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1310 transitions. Word has length 114 [2022-11-20 12:24:26,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:26,252 INFO L495 AbstractCegarLoop]: Abstraction has 1266 states and 1310 transitions. [2022-11-20 12:24:26,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 12:24:26,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1310 transitions. [2022-11-20 12:24:26,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-20 12:24:26,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:26,256 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-11-20 12:24:26,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 12:24:26,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:26,465 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 12:24:26,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:26,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1214835929, now seen corresponding path program 6 times [2022-11-20 12:24:26,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:26,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778769556] [2022-11-20 12:24:26,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:26,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:24:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:26,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 12:24:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:27,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:27,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:27,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:27,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:27,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:27,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:28,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:28,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:28,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:28,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:28,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:28,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:28,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:28,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:28,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 15 proven. 511 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-11-20 12:24:28,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:24:28,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778769556] [2022-11-20 12:24:28,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778769556] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:24:28,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749072267] [2022-11-20 12:24:28,582 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-20 12:24:28,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:28,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:24:28,584 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:24:28,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 12:24:28,740 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2022-11-20 12:24:28,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:24:28,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-20 12:24:28,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:28,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-11-20 12:24:28,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:24:40,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-11-20 12:24:40,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749072267] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:24:40,838 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:24:40,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 31] total 64 [2022-11-20 12:24:40,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851716662] [2022-11-20 12:24:40,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:24:40,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-11-20 12:24:40,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:24:40,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-11-20 12:24:40,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1057, Invalid=3103, Unknown=0, NotChecked=0, Total=4160 [2022-11-20 12:24:40,842 INFO L87 Difference]: Start difference. First operand 1266 states and 1310 transitions. Second operand has 65 states, 64 states have (on average 2.0625) internal successors, (132), 65 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-20 12:24:41,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:41,969 INFO L93 Difference]: Finished difference Result 3059 states and 3470 transitions. [2022-11-20 12:24:41,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-20 12:24:41,970 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 2.0625) internal successors, (132), 65 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) Word has length 154 [2022-11-20 12:24:41,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:41,976 INFO L225 Difference]: With dead ends: 3059 [2022-11-20 12:24:41,976 INFO L226 Difference]: Without dead ends: 1472 [2022-11-20 12:24:41,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6405 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=3039, Invalid=12461, Unknown=0, NotChecked=0, Total=15500 [2022-11-20 12:24:41,984 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 158 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:41,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 69 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:24:41,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-11-20 12:24:42,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2022-11-20 12:24:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1185 states have (on average 1.019409282700422) internal successors, (1208), 1164 states have internal predecessors, (1208), 24 states have call successors, (24), 23 states have call predecessors, (24), 262 states have return successors, (284), 284 states have call predecessors, (284), 23 states have call successors, (284) [2022-11-20 12:24:42,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1516 transitions. [2022-11-20 12:24:42,035 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1516 transitions. Word has length 154 [2022-11-20 12:24:42,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:42,036 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 1516 transitions. [2022-11-20 12:24:42,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 2.0625) internal successors, (132), 65 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-20 12:24:42,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1516 transitions. [2022-11-20 12:24:42,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-11-20 12:24:42,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:42,048 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 54, 54, 54, 31, 31, 31, 30, 30, 1, 1, 1, 1, 1] [2022-11-20 12:24:42,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-20 12:24:42,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-20 12:24:42,254 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 12:24:42,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:42,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1980487428, now seen corresponding path program 7 times [2022-11-20 12:24:42,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:24:42,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161211616] [2022-11-20 12:24:42,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:42,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:24:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:43,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 12:24:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:44,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:45,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:46,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:47,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:48,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:48,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:49,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:49,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:50,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:50,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:51,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:51,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:51,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:52,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:52,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:52,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:53,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:53,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:53,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:53,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:53,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:54,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:54,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:54,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:54,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:54,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:54,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:54,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:54,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:54,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-20 12:24:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:55,114 INFO L134 CoverageAnalysis]: Checked inductivity of 9558 backedges. 54 proven. 2295 refuted. 0 times theorem prover too weak. 7209 trivial. 0 not checked. [2022-11-20 12:24:55,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:24:55,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161211616] [2022-11-20 12:24:55,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161211616] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:24:55,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637364249] [2022-11-20 12:24:55,115 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-20 12:24:55,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:24:55,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:24:55,117 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:24:55,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-20 12:24:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:55,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 112 conjunts are in the unsatisfiable core [2022-11-20 12:24:55,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:25:00,038 INFO L134 CoverageAnalysis]: Checked inductivity of 9558 backedges. 3675 proven. 3648 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2022-11-20 12:25:00,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:27:27,886 INFO L134 CoverageAnalysis]: Checked inductivity of 9558 backedges. 3675 proven. 5418 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-11-20 12:27:27,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637364249] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:27:27,887 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:27:27,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 83, 113] total 226 [2022-11-20 12:27:27,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018889632] [2022-11-20 12:27:27,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:27:27,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 226 states [2022-11-20 12:27:27,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:27:27,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 226 interpolants. [2022-11-20 12:27:27,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5310, Invalid=45540, Unknown=0, NotChecked=0, Total=50850 [2022-11-20 12:27:27,900 INFO L87 Difference]: Start difference. First operand 1472 states and 1516 transitions. Second operand has 226 states, 224 states have (on average 2.5669642857142856) internal successors, (575), 178 states have internal predecessors, (575), 82 states have call successors, (83), 49 states have call predecessors, (83), 62 states have return successors, (93), 62 states have call predecessors, (93), 34 states have call successors, (93) [2022-11-20 12:27:30,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:27:30,167 INFO L93 Difference]: Finished difference Result 1472 states and 1516 transitions. [2022-11-20 12:27:30,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-20 12:27:30,169 INFO L78 Accepts]: Start accepts. Automaton has has 226 states, 224 states have (on average 2.5669642857142856) internal successors, (575), 178 states have internal predecessors, (575), 82 states have call successors, (83), 49 states have call predecessors, (83), 62 states have return successors, (93), 62 states have call predecessors, (93), 34 states have call successors, (93) Word has length 429 [2022-11-20 12:27:30,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:27:30,172 INFO L225 Difference]: With dead ends: 1472 [2022-11-20 12:27:30,172 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 12:27:30,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 726 SyntacticMatches, 31 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32722 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=8178, Invalid=54072, Unknown=0, NotChecked=0, Total=62250 [2022-11-20 12:27:30,189 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 107 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 2962 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 2971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:27:30,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 120 Invalid, 2971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2962 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-20 12:27:30,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 12:27:30,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 12:27:30,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:27:30,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 12:27:30,191 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 429 [2022-11-20 12:27:30,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:27:30,192 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:27:30,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 226 states, 224 states have (on average 2.5669642857142856) internal successors, (575), 178 states have internal predecessors, (575), 82 states have call successors, (83), 49 states have call predecessors, (83), 62 states have return successors, (93), 62 states have call predecessors, (93), 34 states have call successors, (93) [2022-11-20 12:27:30,193 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 12:27:30,193 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 12:27:30,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-20 12:27:30,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-20 12:27:30,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-20 12:27:30,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-20 12:27:30,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-20 12:27:30,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-20 12:27:30,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 12:27:30,959 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 12:27:30,959 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 12:27:30,959 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 12:27:30,959 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 12:27:30,959 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-11-20 12:27:30,960 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2022-11-20 12:27:30,960 INFO L895 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: (= |ULTIMATE.start_main_~input~0#1| 15) [2022-11-20 12:27:30,960 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-11-20 12:27:30,960 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 17) no Hoare annotation was computed. [2022-11-20 12:27:30,960 INFO L899 garLoopResultBuilder]: For program point idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-20 12:27:30,960 INFO L899 garLoopResultBuilder]: For program point idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-20 12:27:30,961 INFO L899 garLoopResultBuilder]: For program point idFINAL(lines 6 9) no Hoare annotation was computed. [2022-11-20 12:27:30,961 INFO L899 garLoopResultBuilder]: For program point idEXIT(lines 6 9) no Hoare annotation was computed. [2022-11-20 12:27:30,961 INFO L902 garLoopResultBuilder]: At program point idENTRY(lines 6 9) the Hoare annotation is: true [2022-11-20 12:27:30,961 INFO L899 garLoopResultBuilder]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-20 12:27:30,961 INFO L899 garLoopResultBuilder]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-20 12:27:30,961 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-11-20 12:27:30,961 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-11-20 12:27:30,961 INFO L899 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2022-11-20 12:27:30,962 INFO L895 garLoopResultBuilder]: At program point L8-2(line 8) the Hoare annotation is: (let ((.cse0 (= |id_#in~x| id_~x))) (and (or (= id_~x 15) (not (<= |id_#in~x| 15)) (not (<= 15 |id_#in~x|))) (or (not (<= |id_#in~x| 0)) (not (<= 0 |id_#in~x|))) (or .cse0 (not (<= 2 |id_#in~x|)) (not (<= |id_#in~x| 14))) (or (not (<= |id_#in~x| 1)) .cse0 (not (<= 1 |id_#in~x|))))) [2022-11-20 12:27:30,962 INFO L899 garLoopResultBuilder]: For program point L8-3(line 8) no Hoare annotation was computed. [2022-11-20 12:27:30,962 INFO L899 garLoopResultBuilder]: For program point L8-4(line 8) no Hoare annotation was computed. [2022-11-20 12:27:30,962 INFO L899 garLoopResultBuilder]: For program point L8-5(line 8) no Hoare annotation was computed. [2022-11-20 12:27:30,966 INFO L444 BasicCegarLoop]: Path program histogram: [7, 4, 1, 1, 1, 1] [2022-11-20 12:27:30,972 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:27:30,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:27:30 BoogieIcfgContainer [2022-11-20 12:27:30,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:27:30,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:27:30,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:27:30,979 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:27:30,980 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:24:01" (3/4) ... [2022-11-20 12:27:30,984 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:27:30,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2022-11-20 12:27:31,003 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-20 12:27:31,003 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 12:27:31,004 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 12:27:31,004 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:27:31,043 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:27:31,043 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:27:31,044 INFO L158 Benchmark]: Toolchain (without parser) took 210406.14ms. Allocated memory was 161.5MB in the beginning and 901.8MB in the end (delta: 740.3MB). Free memory was 114.8MB in the beginning and 470.9MB in the end (delta: -356.1MB). Peak memory consumption was 385.8MB. Max. memory is 16.1GB. [2022-11-20 12:27:31,045 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 161.5MB. Free memory was 132.7MB in the beginning and 132.6MB in the end (delta: 117.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:27:31,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.91ms. Allocated memory is still 161.5MB. Free memory was 114.6MB in the beginning and 105.0MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 12:27:31,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.85ms. Allocated memory is still 161.5MB. Free memory was 105.0MB in the beginning and 103.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:27:31,048 INFO L158 Benchmark]: Boogie Preprocessor took 31.44ms. Allocated memory is still 161.5MB. Free memory was 103.7MB in the beginning and 102.7MB in the end (delta: 949.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:27:31,049 INFO L158 Benchmark]: RCFGBuilder took 328.20ms. Allocated memory is still 161.5MB. Free memory was 102.7MB in the beginning and 93.0MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 12:27:31,049 INFO L158 Benchmark]: TraceAbstraction took 209666.99ms. Allocated memory was 161.5MB in the beginning and 901.8MB in the end (delta: 740.3MB). Free memory was 92.2MB in the beginning and 472.9MB in the end (delta: -380.7MB). Peak memory consumption was 362.7MB. Max. memory is 16.1GB. [2022-11-20 12:27:31,049 INFO L158 Benchmark]: Witness Printer took 64.86ms. Allocated memory is still 901.8MB. Free memory was 472.9MB in the beginning and 470.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:27:31,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 161.5MB. Free memory was 132.7MB in the beginning and 132.6MB in the end (delta: 117.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.91ms. Allocated memory is still 161.5MB. Free memory was 114.6MB in the beginning and 105.0MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.85ms. Allocated memory is still 161.5MB. Free memory was 105.0MB in the beginning and 103.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.44ms. Allocated memory is still 161.5MB. Free memory was 103.7MB in the beginning and 102.7MB in the end (delta: 949.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 328.20ms. Allocated memory is still 161.5MB. Free memory was 102.7MB in the beginning and 93.0MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 209666.99ms. Allocated memory was 161.5MB in the beginning and 901.8MB in the end (delta: 740.3MB). Free memory was 92.2MB in the beginning and 472.9MB in the end (delta: -380.7MB). Peak memory consumption was 362.7MB. Max. memory is 16.1GB. * Witness Printer took 64.86ms. Allocated memory is still 901.8MB. Free memory was 472.9MB in the beginning and 470.9MB in the end (delta: 2.1MB). 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: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: 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 2 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 209.5s, OverallIterations: 15, TraceHistogramMax: 55, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3124 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3049 mSDsluCounter, 3081 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2677 mSDsCounter, 799 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5605 IncrementalHoareTripleChecker+Invalid, 6404 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 799 mSolverCounterUnsat, 404 mSDtfsCounter, 5605 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2974 GetRequests, 2035 SyntacticMatches, 51 SemanticMatches, 888 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48468 ImplicationChecksByTransitivity, 24.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1472occurred in iteration=14, InterpolantAutomatonStates: 413, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 157 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 49 PreInvPairs, 49 NumberOfFragments, 50 HoareAnnotationTreeSize, 49 FomulaSimplifications, 768 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1163 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 194.1s InterpolantComputationTime, 2389 NumberOfCodeBlocks, 2344 NumberOfCodeBlocksAsserted, 73 NumberOfCheckSat, 3502 ConstructedInterpolants, 0 QuantifiedInterpolants, 9676 SizeOfPredicates, 120 NumberOfNonLiveVariables, 2316 ConjunctsInSsa, 311 ConjunctsInUnsatCore, 38 InterpolantComputations, 4 PerfectInterpolantSequences, 21597/41135 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 12:27:31,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc3ac16d-8a56-4875-bbdd-007bfc546799/bin/uautomizer-ug76WZFUDN/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