./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/Addition03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/Addition03-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8 --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 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b --- 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-2329fc7 [2022-12-13 21:23:33,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:23:33,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:23:33,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:23:33,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:23:33,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:23:33,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:23:33,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:23:33,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:23:33,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:23:33,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:23:33,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:23:33,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:23:33,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:23:33,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:23:33,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:23:33,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:23:33,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:23:33,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:23:33,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:23:33,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:23:33,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:23:33,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:23:33,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:23:33,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:23:33,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:23:33,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:23:33,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:23:33,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:23:33,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:23:33,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:23:33,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:23:33,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:23:33,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:23:33,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:23:33,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:23:33,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:23:33,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:23:33,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:23:33,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:23:33,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:23:33,837 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 21:23:33,863 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:23:33,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:23:33,864 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:23:33,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:23:33,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:23:33,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:23:33,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:23:33,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:23:33,866 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:23:33,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:23:33,866 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:23:33,866 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:23:33,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:23:33,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:23:33,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:23:33,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:23:33,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:23:33,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:23:33,868 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 21:23:33,868 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:23:33,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:23:33,868 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:23:33,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:23:33,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:23:33,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:23:33,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:23:33,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:23:33,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:23:33,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:23:33,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:23:33,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:23:33,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:23:33,871 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:23:33,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:23:33,871 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:23:33,871 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:23:33,871 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:23:33,872 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b [2022-12-13 21:23:34,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:23:34,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:23:34,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:23:34,096 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:23:34,096 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:23:34,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/recursive/Addition03-1.c [2022-12-13 21:23:36,676 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:23:36,804 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:23:36,805 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/sv-benchmarks/c/recursive/Addition03-1.c [2022-12-13 21:23:36,809 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/data/46da80d4a/69cacd1edcad48f398be063534639e96/FLAG6875e16d0 [2022-12-13 21:23:36,820 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/data/46da80d4a/69cacd1edcad48f398be063534639e96 [2022-12-13 21:23:36,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:23:36,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:23:36,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:23:36,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:23:36,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:23:36,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:23:36" (1/1) ... [2022-12-13 21:23:36,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3125be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:36, skipping insertion in model container [2022-12-13 21:23:36,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:23:36" (1/1) ... [2022-12-13 21:23:36,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:23:36,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:23:36,966 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_ec51617c-6d6c-4271-aee9-4bc475b7d769/sv-benchmarks/c/recursive/Addition03-1.c[840,853] [2022-12-13 21:23:36,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:23:36,983 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:23:36,998 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_ec51617c-6d6c-4271-aee9-4bc475b7d769/sv-benchmarks/c/recursive/Addition03-1.c[840,853] [2022-12-13 21:23:36,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:23:37,012 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:23:37,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:37 WrapperNode [2022-12-13 21:23:37,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:23:37,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:23:37,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:23:37,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:23:37,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:37" (1/1) ... [2022-12-13 21:23:37,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:37" (1/1) ... [2022-12-13 21:23:37,042 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2022-12-13 21:23:37,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:23:37,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:23:37,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:23:37,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:23:37,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:37" (1/1) ... [2022-12-13 21:23:37,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:37" (1/1) ... [2022-12-13 21:23:37,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:37" (1/1) ... [2022-12-13 21:23:37,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:37" (1/1) ... [2022-12-13 21:23:37,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:37" (1/1) ... [2022-12-13 21:23:37,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:37" (1/1) ... [2022-12-13 21:23:37,058 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:37" (1/1) ... [2022-12-13 21:23:37,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:37" (1/1) ... [2022-12-13 21:23:37,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:23:37,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:23:37,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:23:37,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:23:37,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:37" (1/1) ... [2022-12-13 21:23:37,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:23:37,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:23:37,091 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:23:37,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:23:37,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:23:37,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:23:37,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:23:37,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:23:37,125 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2022-12-13 21:23:37,125 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2022-12-13 21:23:37,185 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:23:37,187 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:23:37,293 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:23:37,300 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:23:37,300 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:23:37,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:23:37 BoogieIcfgContainer [2022-12-13 21:23:37,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:23:37,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:23:37,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:23:37,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:23:37,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:23:36" (1/3) ... [2022-12-13 21:23:37,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d5f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:23:37, skipping insertion in model container [2022-12-13 21:23:37,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:23:37" (2/3) ... [2022-12-13 21:23:37,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d5f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:23:37, skipping insertion in model container [2022-12-13 21:23:37,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:23:37" (3/3) ... [2022-12-13 21:23:37,312 INFO L112 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2022-12-13 21:23:37,340 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:23:37,340 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 21:23:37,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:23:37,391 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;@46f563a9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:23:37,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 21:23:37,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 21:23:37,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 21:23:37,403 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:37,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:23:37,404 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:37,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:37,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1845786995, now seen corresponding path program 1 times [2022-12-13 21:23:37,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:37,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006749708] [2022-12-13 21:23:37,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:37,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:37,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:37,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:37,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006749708] [2022-12-13 21:23:37,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006749708] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:23:37,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:23:37,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:23:37,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407962988] [2022-12-13 21:23:37,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:23:37,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:23:37,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:37,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:23:37,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:23:37,658 INFO L87 Difference]: Start difference. First operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-12-13 21:23:37,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:37,756 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2022-12-13 21:23:37,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:23:37,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 7 [2022-12-13 21:23:37,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:37,764 INFO L225 Difference]: With dead ends: 64 [2022-12-13 21:23:37,764 INFO L226 Difference]: Without dead ends: 45 [2022-12-13 21:23:37,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:23:37,769 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 50 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:23:37,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 106 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:23:37,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-12-13 21:23:37,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2022-12-13 21:23:37,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.565217391304348) internal successors, (36), 32 states have internal predecessors, (36), 4 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:37,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2022-12-13 21:23:37,796 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 7 [2022-12-13 21:23:37,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:37,797 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2022-12-13 21:23:37,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-12-13 21:23:37,797 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2022-12-13 21:23:37,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 21:23:37,797 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:37,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:23:37,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:23:37,798 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:37,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:37,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1384822053, now seen corresponding path program 1 times [2022-12-13 21:23:37,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:37,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304293535] [2022-12-13 21:23:37,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:37,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:37,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:37,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:37,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304293535] [2022-12-13 21:23:37,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304293535] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:23:37,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:23:37,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:23:37,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569542115] [2022-12-13 21:23:37,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:23:37,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:23:37,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:37,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:23:37,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:23:37,850 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-12-13 21:23:37,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:37,892 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2022-12-13 21:23:37,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:23:37,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 8 [2022-12-13 21:23:37,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:37,894 INFO L225 Difference]: With dead ends: 67 [2022-12-13 21:23:37,894 INFO L226 Difference]: Without dead ends: 65 [2022-12-13 21:23:37,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:23:37,896 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 34 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:23:37,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 70 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:23:37,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-12-13 21:23:37,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2022-12-13 21:23:37,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.475) internal successors, (59), 48 states have internal predecessors, (59), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:37,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2022-12-13 21:23:37,904 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 8 [2022-12-13 21:23:37,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:37,904 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2022-12-13 21:23:37,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-12-13 21:23:37,904 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2022-12-13 21:23:37,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 21:23:37,905 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:37,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:23:37,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:23:37,905 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:37,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:37,906 INFO L85 PathProgramCache]: Analyzing trace with hash -20189259, now seen corresponding path program 1 times [2022-12-13 21:23:37,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:37,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875263800] [2022-12-13 21:23:37,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:37,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:37,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:37,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:37,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875263800] [2022-12-13 21:23:37,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875263800] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:23:37,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:23:37,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:23:37,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478386244] [2022-12-13 21:23:37,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:23:37,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:23:37,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:37,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:23:37,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:23:37,935 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-13 21:23:37,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:37,953 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2022-12-13 21:23:37,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:23:37,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 9 [2022-12-13 21:23:37,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:37,955 INFO L225 Difference]: With dead ends: 53 [2022-12-13 21:23:37,955 INFO L226 Difference]: Without dead ends: 52 [2022-12-13 21:23:37,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:23:37,956 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 29 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 [2022-12-13 21:23:37,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 29 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:23:37,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-13 21:23:37,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-12-13 21:23:37,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.425) internal successors, (57), 47 states have internal predecessors, (57), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:37,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2022-12-13 21:23:37,963 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 9 [2022-12-13 21:23:37,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:37,963 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2022-12-13 21:23:37,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-13 21:23:37,963 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2022-12-13 21:23:37,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 21:23:37,964 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:37,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:23:37,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:23:37,964 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:37,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:37,965 INFO L85 PathProgramCache]: Analyzing trace with hash -615338830, now seen corresponding path program 1 times [2022-12-13 21:23:37,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:37,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356900483] [2022-12-13 21:23:37,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:37,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:38,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:38,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:38,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356900483] [2022-12-13 21:23:38,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356900483] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:23:38,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:23:38,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:23:38,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650866194] [2022-12-13 21:23:38,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:23:38,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:23:38,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:38,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:23:38,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:23:38,015 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-13 21:23:38,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:38,064 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2022-12-13 21:23:38,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:23:38,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 10 [2022-12-13 21:23:38,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:38,066 INFO L225 Difference]: With dead ends: 63 [2022-12-13 21:23:38,066 INFO L226 Difference]: Without dead ends: 62 [2022-12-13 21:23:38,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:23:38,067 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 35 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:23:38,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 48 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:23:38,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-13 21:23:38,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2022-12-13 21:23:38,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.4) internal successors, (56), 47 states have internal predecessors, (56), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:38,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2022-12-13 21:23:38,075 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 10 [2022-12-13 21:23:38,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:38,075 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2022-12-13 21:23:38,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-13 21:23:38,076 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2022-12-13 21:23:38,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 21:23:38,076 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:38,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:23:38,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 21:23:38,077 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:38,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:38,077 INFO L85 PathProgramCache]: Analyzing trace with hash -625866969, now seen corresponding path program 1 times [2022-12-13 21:23:38,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:38,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059788876] [2022-12-13 21:23:38,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:38,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:38,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:38,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:38,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059788876] [2022-12-13 21:23:38,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059788876] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:23:38,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:23:38,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:23:38,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906936750] [2022-12-13 21:23:38,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:23:38,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:23:38,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:38,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:23:38,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:23:38,119 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-13 21:23:38,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:38,163 INFO L93 Difference]: Finished difference Result 64 states and 73 transitions. [2022-12-13 21:23:38,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:23:38,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 10 [2022-12-13 21:23:38,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:38,164 INFO L225 Difference]: With dead ends: 64 [2022-12-13 21:23:38,164 INFO L226 Difference]: Without dead ends: 62 [2022-12-13 21:23:38,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:23:38,165 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 34 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:23:38,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 46 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:23:38,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-13 21:23:38,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 51. [2022-12-13 21:23:38,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.325) internal successors, (53), 46 states have internal predecessors, (53), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:38,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2022-12-13 21:23:38,171 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 10 [2022-12-13 21:23:38,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:38,171 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2022-12-13 21:23:38,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-13 21:23:38,171 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2022-12-13 21:23:38,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 21:23:38,172 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:38,172 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:23:38,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 21:23:38,172 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:38,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:38,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1868280031, now seen corresponding path program 1 times [2022-12-13 21:23:38,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:38,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302881371] [2022-12-13 21:23:38,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:38,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:38,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:38,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:38,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302881371] [2022-12-13 21:23:38,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302881371] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:23:38,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337592243] [2022-12-13 21:23:38,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:38,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:23:38,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:23:38,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:23:38,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 21:23:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:38,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:23:38,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:23:38,334 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:38,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:23:38,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337592243] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:23:38,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 21:23:38,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-12-13 21:23:38,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526384187] [2022-12-13 21:23:38,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:23:38,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:23:38,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:38,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:23:38,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:23:38,335 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-12-13 21:23:38,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:38,372 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2022-12-13 21:23:38,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 21:23:38,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 16 [2022-12-13 21:23:38,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:38,373 INFO L225 Difference]: With dead ends: 74 [2022-12-13 21:23:38,373 INFO L226 Difference]: Without dead ends: 52 [2022-12-13 21:23:38,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-13 21:23:38,375 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 15 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:23:38,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 47 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:23:38,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-13 21:23:38,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 42. [2022-12-13 21:23:38,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 37 states have internal predecessors, (41), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:38,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2022-12-13 21:23:38,381 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 16 [2022-12-13 21:23:38,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:38,381 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2022-12-13 21:23:38,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-12-13 21:23:38,382 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2022-12-13 21:23:38,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 21:23:38,382 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:38,382 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:23:38,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:23:38,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:23:38,585 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:38,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:38,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1957530120, now seen corresponding path program 1 times [2022-12-13 21:23:38,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:38,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048834835] [2022-12-13 21:23:38,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:38,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:38,749 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:38,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:38,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048834835] [2022-12-13 21:23:38,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048834835] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:23:38,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045390585] [2022-12-13 21:23:38,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:38,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:23:38,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:23:38,751 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:23:38,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 21:23:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:38,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 21:23:38,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:23:38,809 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:38,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:23:38,861 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:38,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045390585] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:23:38,862 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:23:38,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-12-13 21:23:38,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570214031] [2022-12-13 21:23:38,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:23:38,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 21:23:38,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:38,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 21:23:38,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-13 21:23:38,864 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 12 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:38,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:38,960 INFO L93 Difference]: Finished difference Result 109 states and 120 transitions. [2022-12-13 21:23:38,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:23:38,960 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-12-13 21:23:38,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:38,960 INFO L225 Difference]: With dead ends: 109 [2022-12-13 21:23:38,961 INFO L226 Difference]: Without dead ends: 107 [2022-12-13 21:23:38,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2022-12-13 21:23:38,962 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 159 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:23:38,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 116 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:23:38,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-12-13 21:23:38,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 77. [2022-12-13 21:23:38,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 68 states have internal predecessors, (77), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2022-12-13 21:23:38,974 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 16 [2022-12-13 21:23:38,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:38,974 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2022-12-13 21:23:38,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:38,974 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2022-12-13 21:23:38,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 21:23:38,975 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:38,975 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:23:38,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 21:23:39,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:23:39,177 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:39,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:39,178 INFO L85 PathProgramCache]: Analyzing trace with hash -2082095102, now seen corresponding path program 1 times [2022-12-13 21:23:39,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:39,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541015261] [2022-12-13 21:23:39,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:39,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:39,328 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:39,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:39,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541015261] [2022-12-13 21:23:39,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541015261] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:23:39,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711232163] [2022-12-13 21:23:39,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:39,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:23:39,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:23:39,330 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:23:39,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 21:23:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:39,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 21:23:39,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:23:39,390 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:39,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:23:39,443 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:39,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711232163] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:23:39,444 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:23:39,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-12-13 21:23:39,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184938704] [2022-12-13 21:23:39,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:23:39,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 21:23:39,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:39,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 21:23:39,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-13 21:23:39,445 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand has 12 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:39,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:39,552 INFO L93 Difference]: Finished difference Result 179 states and 199 transitions. [2022-12-13 21:23:39,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 21:23:39,552 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-13 21:23:39,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:39,553 INFO L225 Difference]: With dead ends: 179 [2022-12-13 21:23:39,553 INFO L226 Difference]: Without dead ends: 178 [2022-12-13 21:23:39,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-12-13 21:23:39,554 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 96 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:23:39,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 96 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:23:39,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-12-13 21:23:39,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 158. [2022-12-13 21:23:39,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 137 states have (on average 1.1532846715328466) internal successors, (158), 140 states have internal predecessors, (158), 17 states have call successors, (17), 17 states have call predecessors, (17), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:39,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 175 transitions. [2022-12-13 21:23:39,566 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 175 transitions. Word has length 17 [2022-12-13 21:23:39,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:39,567 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 175 transitions. [2022-12-13 21:23:39,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:39,567 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 175 transitions. [2022-12-13 21:23:39,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 21:23:39,567 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:39,567 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:23:39,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 21:23:39,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 21:23:39,768 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:39,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:39,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1299669, now seen corresponding path program 1 times [2022-12-13 21:23:39,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:39,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366039370] [2022-12-13 21:23:39,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:39,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:39,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:39,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:39,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366039370] [2022-12-13 21:23:39,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366039370] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:23:39,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:23:39,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:23:39,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84691734] [2022-12-13 21:23:39,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:23:39,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:23:39,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:39,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:23:39,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:23:39,808 INFO L87 Difference]: Start difference. First operand 158 states and 175 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-12-13 21:23:39,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:39,856 INFO L93 Difference]: Finished difference Result 159 states and 175 transitions. [2022-12-13 21:23:39,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:23:39,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 18 [2022-12-13 21:23:39,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:39,857 INFO L225 Difference]: With dead ends: 159 [2022-12-13 21:23:39,857 INFO L226 Difference]: Without dead ends: 80 [2022-12-13 21:23:39,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:23:39,859 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 10 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:23:39,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 40 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:23:39,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-12-13 21:23:39,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-12-13 21:23:39,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 69 states have (on average 1.0434782608695652) internal successors, (72), 70 states have internal predecessors, (72), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:39,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2022-12-13 21:23:39,872 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 18 [2022-12-13 21:23:39,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:39,872 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2022-12-13 21:23:39,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-12-13 21:23:39,873 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2022-12-13 21:23:39,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-13 21:23:39,874 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:39,874 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-12-13 21:23:39,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 21:23:39,874 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:39,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:39,875 INFO L85 PathProgramCache]: Analyzing trace with hash -591358287, now seen corresponding path program 2 times [2022-12-13 21:23:39,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:39,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388163080] [2022-12-13 21:23:39,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:39,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:40,016 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:40,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:40,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388163080] [2022-12-13 21:23:40,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388163080] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:23:40,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546971684] [2022-12-13 21:23:40,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 21:23:40,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:23:40,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:23:40,017 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:23:40,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 21:23:40,055 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 21:23:40,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:23:40,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 21:23:40,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:23:40,108 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:40,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:23:40,255 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:40,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546971684] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:23:40,255 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:23:40,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-12-13 21:23:40,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176864088] [2022-12-13 21:23:40,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:23:40,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 21:23:40,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:40,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 21:23:40,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-12-13 21:23:40,257 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand has 24 states, 21 states have (on average 3.2857142857142856) internal successors, (69), 14 states have internal predecessors, (69), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:40,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:40,438 INFO L93 Difference]: Finished difference Result 132 states and 138 transitions. [2022-12-13 21:23:40,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 21:23:40,438 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 3.2857142857142856) internal successors, (69), 14 states have internal predecessors, (69), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-12-13 21:23:40,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:40,439 INFO L225 Difference]: With dead ends: 132 [2022-12-13 21:23:40,439 INFO L226 Difference]: Without dead ends: 131 [2022-12-13 21:23:40,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 21:23:40,441 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 204 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:23:40,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 127 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:23:40,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-12-13 21:23:40,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2022-12-13 21:23:40,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 111 states have (on average 1.027027027027027) internal successors, (114), 112 states have internal predecessors, (114), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:40,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 129 transitions. [2022-12-13 21:23:40,455 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 129 transitions. Word has length 40 [2022-12-13 21:23:40,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:40,455 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 129 transitions. [2022-12-13 21:23:40,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 3.2857142857142856) internal successors, (69), 14 states have internal predecessors, (69), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:40,456 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 129 transitions. [2022-12-13 21:23:40,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-13 21:23:40,457 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:40,457 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-12-13 21:23:40,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 21:23:40,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 21:23:40,657 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:40,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:40,658 INFO L85 PathProgramCache]: Analyzing trace with hash 500840560, now seen corresponding path program 2 times [2022-12-13 21:23:40,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:40,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550927723] [2022-12-13 21:23:40,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:40,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:40,809 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:40,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:40,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550927723] [2022-12-13 21:23:40,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550927723] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:23:40,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532925604] [2022-12-13 21:23:40,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 21:23:40,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:23:40,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:23:40,811 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:23:40,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 21:23:40,844 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 21:23:40,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:23:40,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 21:23:40,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:23:40,900 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:40,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:23:41,057 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:41,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532925604] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:23:41,058 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:23:41,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-12-13 21:23:41,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391789798] [2022-12-13 21:23:41,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:23:41,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 21:23:41,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:41,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 21:23:41,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-12-13 21:23:41,060 INFO L87 Difference]: Start difference. First operand 128 states and 129 transitions. Second operand has 24 states, 21 states have (on average 3.6666666666666665) internal successors, (77), 14 states have internal predecessors, (77), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:41,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:41,244 INFO L93 Difference]: Finished difference Result 187 states and 193 transitions. [2022-12-13 21:23:41,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 21:23:41,244 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 3.6666666666666665) internal successors, (77), 14 states have internal predecessors, (77), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-12-13 21:23:41,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:41,245 INFO L225 Difference]: With dead ends: 187 [2022-12-13 21:23:41,245 INFO L226 Difference]: Without dead ends: 186 [2022-12-13 21:23:41,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 21:23:41,247 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 189 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:23:41,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 153 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:23:41,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-12-13 21:23:41,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 182. [2022-12-13 21:23:41,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 159 states have (on average 1.0188679245283019) internal successors, (162), 160 states have internal predecessors, (162), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:41,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 183 transitions. [2022-12-13 21:23:41,262 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 183 transitions. Word has length 44 [2022-12-13 21:23:41,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:41,262 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 183 transitions. [2022-12-13 21:23:41,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 3.6666666666666665) internal successors, (77), 14 states have internal predecessors, (77), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:41,262 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 183 transitions. [2022-12-13 21:23:41,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-13 21:23:41,264 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:41,264 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2022-12-13 21:23:41,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 21:23:41,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:23:41,466 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:41,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:41,467 INFO L85 PathProgramCache]: Analyzing trace with hash 2121543427, now seen corresponding path program 3 times [2022-12-13 21:23:41,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:41,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496806715] [2022-12-13 21:23:41,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:41,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:41,935 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:41,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:41,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496806715] [2022-12-13 21:23:41,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496806715] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:23:41,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276950779] [2022-12-13 21:23:41,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 21:23:41,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:23:41,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:23:41,937 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:23:41,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 21:23:41,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-12-13 21:23:41,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:23:41,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-13 21:23:41,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:23:42,086 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:42,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:23:42,547 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:42,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276950779] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:23:42,547 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:23:42,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-12-13 21:23:42,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405532608] [2022-12-13 21:23:42,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:23:42,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-13 21:23:42,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:42,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-13 21:23:42,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-12-13 21:23:42,552 INFO L87 Difference]: Start difference. First operand 182 states and 183 transitions. Second operand has 48 states, 45 states have (on average 3.4) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:42,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:42,982 INFO L93 Difference]: Finished difference Result 282 states and 294 transitions. [2022-12-13 21:23:42,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-13 21:23:42,983 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 3.4) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-12-13 21:23:42,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:42,985 INFO L225 Difference]: With dead ends: 282 [2022-12-13 21:23:42,985 INFO L226 Difference]: Without dead ends: 281 [2022-12-13 21:23:42,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2022-12-13 21:23:42,988 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 617 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:23:42,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 224 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:23:42,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-12-13 21:23:42,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 278. [2022-12-13 21:23:42,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 243 states have (on average 1.0123456790123457) internal successors, (246), 244 states have internal predecessors, (246), 33 states have call successors, (33), 33 states have call predecessors, (33), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:42,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 279 transitions. [2022-12-13 21:23:42,999 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 279 transitions. Word has length 88 [2022-12-13 21:23:43,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:43,000 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 279 transitions. [2022-12-13 21:23:43,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 3.4) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:43,000 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 279 transitions. [2022-12-13 21:23:43,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 21:23:43,001 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:43,001 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-12-13 21:23:43,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 21:23:43,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 21:23:43,203 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:43,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:43,204 INFO L85 PathProgramCache]: Analyzing trace with hash -976026320, now seen corresponding path program 3 times [2022-12-13 21:23:43,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:43,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251980767] [2022-12-13 21:23:43,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:43,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:43,637 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:43,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:43,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251980767] [2022-12-13 21:23:43,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251980767] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:23:43,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991259557] [2022-12-13 21:23:43,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 21:23:43,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:23:43,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:23:43,639 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:23:43,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 21:23:43,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-12-13 21:23:43,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:23:43,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-13 21:23:43,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:23:43,799 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:43,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:23:44,176 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:44,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991259557] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:23:44,176 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:23:44,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-12-13 21:23:44,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327718372] [2022-12-13 21:23:44,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:23:44,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-13 21:23:44,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:44,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-13 21:23:44,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-12-13 21:23:44,178 INFO L87 Difference]: Start difference. First operand 278 states and 279 transitions. Second operand has 48 states, 45 states have (on average 3.8444444444444446) internal successors, (173), 26 states have internal predecessors, (173), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:44,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:44,674 INFO L93 Difference]: Finished difference Result 391 states and 403 transitions. [2022-12-13 21:23:44,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-13 21:23:44,675 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 3.8444444444444446) internal successors, (173), 26 states have internal predecessors, (173), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 21:23:44,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:44,677 INFO L225 Difference]: With dead ends: 391 [2022-12-13 21:23:44,677 INFO L226 Difference]: Without dead ends: 390 [2022-12-13 21:23:44,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2022-12-13 21:23:44,680 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 449 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:23:44,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 276 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:23:44,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-12-13 21:23:44,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 386. [2022-12-13 21:23:44,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 339 states have (on average 1.008849557522124) internal successors, (342), 340 states have internal predecessors, (342), 45 states have call successors, (45), 45 states have call predecessors, (45), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:44,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 387 transitions. [2022-12-13 21:23:44,694 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 387 transitions. Word has length 98 [2022-12-13 21:23:44,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:44,694 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 387 transitions. [2022-12-13 21:23:44,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 3.8444444444444446) internal successors, (173), 26 states have internal predecessors, (173), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:44,694 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 387 transitions. [2022-12-13 21:23:44,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-12-13 21:23:44,696 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:44,696 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2022-12-13 21:23:44,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 21:23:44,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 21:23:44,898 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:44,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:44,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1760385959, now seen corresponding path program 4 times [2022-12-13 21:23:44,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:44,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379326713] [2022-12-13 21:23:44,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:44,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:45,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:45,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:45,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379326713] [2022-12-13 21:23:45,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379326713] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:23:45,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607802458] [2022-12-13 21:23:45,916 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 21:23:45,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:23:45,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:23:45,916 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:23:45,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 21:23:45,988 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 21:23:45,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:23:45,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-13 21:23:45,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:23:46,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:46,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:23:47,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:47,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607802458] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:23:47,541 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:23:47,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-12-13 21:23:47,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175191376] [2022-12-13 21:23:47,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:23:47,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-12-13 21:23:47,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:47,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-12-13 21:23:47,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2022-12-13 21:23:47,544 INFO L87 Difference]: Start difference. First operand 386 states and 387 transitions. Second operand has 96 states, 93 states have (on average 3.4516129032258065) internal successors, (321), 50 states have internal predecessors, (321), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:48,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:48,709 INFO L93 Difference]: Finished difference Result 582 states and 606 transitions. [2022-12-13 21:23:48,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-12-13 21:23:48,709 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 3.4516129032258065) internal successors, (321), 50 states have internal predecessors, (321), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 184 [2022-12-13 21:23:48,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:48,711 INFO L225 Difference]: With dead ends: 582 [2022-12-13 21:23:48,711 INFO L226 Difference]: Without dead ends: 581 [2022-12-13 21:23:48,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2022-12-13 21:23:48,714 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1198 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:23:48,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 428 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 21:23:48,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-12-13 21:23:48,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 578. [2022-12-13 21:23:48,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 507 states have (on average 1.0059171597633136) internal successors, (510), 508 states have internal predecessors, (510), 69 states have call successors, (69), 69 states have call predecessors, (69), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:48,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 579 transitions. [2022-12-13 21:23:48,734 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 579 transitions. Word has length 184 [2022-12-13 21:23:48,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:48,734 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 579 transitions. [2022-12-13 21:23:48,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 3.4516129032258065) internal successors, (321), 50 states have internal predecessors, (321), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:48,735 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 579 transitions. [2022-12-13 21:23:48,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-12-13 21:23:48,736 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:48,736 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2022-12-13 21:23:48,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-13 21:23:48,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 21:23:48,938 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:48,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:48,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1388146352, now seen corresponding path program 4 times [2022-12-13 21:23:48,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:48,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094409863] [2022-12-13 21:23:48,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:48,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:49,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2189 backedges. 0 proven. 2189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:49,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:49,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094409863] [2022-12-13 21:23:49,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094409863] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:23:49,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690731437] [2022-12-13 21:23:49,920 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 21:23:49,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:23:49,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:23:49,921 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:23:49,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 21:23:49,997 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 21:23:49,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:23:50,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-13 21:23:50,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:23:50,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2189 backedges. 0 proven. 2189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:50,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:23:51,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2189 backedges. 0 proven. 2189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:51,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690731437] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:23:51,469 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:23:51,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-12-13 21:23:51,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117888113] [2022-12-13 21:23:51,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:23:51,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-12-13 21:23:51,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:51,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-12-13 21:23:51,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2022-12-13 21:23:51,472 INFO L87 Difference]: Start difference. First operand 578 states and 579 transitions. Second operand has 96 states, 93 states have (on average 3.924731182795699) internal successors, (365), 50 states have internal predecessors, (365), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:52,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:52,690 INFO L93 Difference]: Finished difference Result 799 states and 823 transitions. [2022-12-13 21:23:52,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-12-13 21:23:52,690 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 3.924731182795699) internal successors, (365), 50 states have internal predecessors, (365), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2022-12-13 21:23:52,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:52,692 INFO L225 Difference]: With dead ends: 799 [2022-12-13 21:23:52,693 INFO L226 Difference]: Without dead ends: 798 [2022-12-13 21:23:52,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2022-12-13 21:23:52,696 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1383 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:23:52,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 513 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 21:23:52,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2022-12-13 21:23:52,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 794. [2022-12-13 21:23:52,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 699 states have (on average 1.0042918454935623) internal successors, (702), 700 states have internal predecessors, (702), 93 states have call successors, (93), 93 states have call predecessors, (93), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:52,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 795 transitions. [2022-12-13 21:23:52,723 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 795 transitions. Word has length 206 [2022-12-13 21:23:52,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:52,723 INFO L495 AbstractCegarLoop]: Abstraction has 794 states and 795 transitions. [2022-12-13 21:23:52,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 3.924731182795699) internal successors, (365), 50 states have internal predecessors, (365), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:23:52,723 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 795 transitions. [2022-12-13 21:23:52,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2022-12-13 21:23:52,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:52,730 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2022-12-13 21:23:52,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 21:23:52,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 21:23:52,932 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:23:52,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:52,932 INFO L85 PathProgramCache]: Analyzing trace with hash 151495919, now seen corresponding path program 5 times [2022-12-13 21:23:52,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:52,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165363916] [2022-12-13 21:23:52,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:52,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:56,341 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 0 proven. 8510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:56,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:56,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165363916] [2022-12-13 21:23:56,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165363916] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:23:56,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937508731] [2022-12-13 21:23:56,341 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 21:23:56,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:23:56,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:23:56,345 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:23:56,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 21:23:56,498 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-12-13 21:23:56,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:23:56,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 96 conjunts are in the unsatisfiable core [2022-12-13 21:23:56,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:23:56,785 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 0 proven. 8510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:56,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:24:01,726 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 0 proven. 8510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:24:01,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937508731] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:24:01,727 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:24:01,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-12-13 21:24:01,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048346853] [2022-12-13 21:24:01,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:24:01,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-12-13 21:24:01,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:24:01,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-12-13 21:24:01,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2022-12-13 21:24:01,733 INFO L87 Difference]: Start difference. First operand 794 states and 795 transitions. Second operand has 192 states, 189 states have (on average 3.4761904761904763) internal successors, (657), 98 states have internal predecessors, (657), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:24:08,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:08,414 INFO L93 Difference]: Finished difference Result 1182 states and 1230 transitions. [2022-12-13 21:24:08,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-12-13 21:24:08,415 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 3.4761904761904763) internal successors, (657), 98 states have internal predecessors, (657), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 376 [2022-12-13 21:24:08,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:08,418 INFO L225 Difference]: With dead ends: 1182 [2022-12-13 21:24:08,418 INFO L226 Difference]: Without dead ends: 1181 [2022-12-13 21:24:08,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 940 GetRequests, 656 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2022-12-13 21:24:08,423 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2724 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2724 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:08,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2724 Valid, 810 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 21:24:08,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2022-12-13 21:24:08,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1178. [2022-12-13 21:24:08,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1035 states have (on average 1.0028985507246377) internal successors, (1038), 1036 states have internal predecessors, (1038), 141 states have call successors, (141), 141 states have call predecessors, (141), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:24:08,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1179 transitions. [2022-12-13 21:24:08,480 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1179 transitions. Word has length 376 [2022-12-13 21:24:08,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:08,481 INFO L495 AbstractCegarLoop]: Abstraction has 1178 states and 1179 transitions. [2022-12-13 21:24:08,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 3.4761904761904763) internal successors, (657), 98 states have internal predecessors, (657), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:24:08,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1179 transitions. [2022-12-13 21:24:08,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-12-13 21:24:08,486 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:08,486 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2022-12-13 21:24:08,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 21:24:08,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 21:24:08,687 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:24:08,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:08,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1296400816, now seen corresponding path program 5 times [2022-12-13 21:24:08,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:24:08,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288023064] [2022-12-13 21:24:08,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:08,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:24:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:12,552 INFO L134 CoverageAnalysis]: Checked inductivity of 9545 backedges. 0 proven. 9545 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:24:12,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:24:12,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288023064] [2022-12-13 21:24:12,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288023064] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:24:12,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024996179] [2022-12-13 21:24:12,553 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 21:24:12,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:24:12,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:24:12,554 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:24:12,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 21:24:12,732 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-12-13 21:24:12,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:24:12,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 96 conjunts are in the unsatisfiable core [2022-12-13 21:24:12,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:13,109 INFO L134 CoverageAnalysis]: Checked inductivity of 9545 backedges. 0 proven. 9545 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:24:13,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:24:18,464 INFO L134 CoverageAnalysis]: Checked inductivity of 9545 backedges. 0 proven. 9545 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:24:18,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024996179] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:24:18,465 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:24:18,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-12-13 21:24:18,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004632508] [2022-12-13 21:24:18,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:24:18,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-12-13 21:24:18,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:24:18,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-12-13 21:24:18,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2022-12-13 21:24:18,471 INFO L87 Difference]: Start difference. First operand 1178 states and 1179 transitions. Second operand has 192 states, 189 states have (on average 3.962962962962963) internal successors, (749), 98 states have internal predecessors, (749), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:24:25,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:25,297 INFO L93 Difference]: Finished difference Result 1615 states and 1663 transitions. [2022-12-13 21:24:25,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-12-13 21:24:25,298 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 3.962962962962963) internal successors, (749), 98 states have internal predecessors, (749), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 422 [2022-12-13 21:24:25,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:25,301 INFO L225 Difference]: With dead ends: 1615 [2022-12-13 21:24:25,301 INFO L226 Difference]: Without dead ends: 1614 [2022-12-13 21:24:25,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1032 GetRequests, 748 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2022-12-13 21:24:25,305 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2567 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2567 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:25,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2567 Valid, 1013 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 21:24:25,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2022-12-13 21:24:25,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1610. [2022-12-13 21:24:25,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1419 states have (on average 1.0021141649048626) internal successors, (1422), 1420 states have internal predecessors, (1422), 189 states have call successors, (189), 189 states have call predecessors, (189), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:24:25,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 1611 transitions. [2022-12-13 21:24:25,359 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 1611 transitions. Word has length 422 [2022-12-13 21:24:25,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:25,360 INFO L495 AbstractCegarLoop]: Abstraction has 1610 states and 1611 transitions. [2022-12-13 21:24:25,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 3.962962962962963) internal successors, (749), 98 states have internal predecessors, (749), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:24:25,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 1611 transitions. [2022-12-13 21:24:25,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2022-12-13 21:24:25,365 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:25,365 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 94, 94, 1, 1, 1, 1] [2022-12-13 21:24:25,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 21:24:25,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-13 21:24:25,567 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:24:25,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:25,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1826355071, now seen corresponding path program 6 times [2022-12-13 21:24:25,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:24:25,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796832942] [2022-12-13 21:24:25,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:25,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:24:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:43,573 INFO L134 CoverageAnalysis]: Checked inductivity of 35438 backedges. 0 proven. 35438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:24:43,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:24:43,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796832942] [2022-12-13 21:24:43,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796832942] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:24:43,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248860497] [2022-12-13 21:24:43,574 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 21:24:43,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:24:43,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:24:43,574 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:24:43,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 21:24:44,117 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-12-13 21:24:44,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:24:44,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 192 conjunts are in the unsatisfiable core [2022-12-13 21:24:44,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:44,725 INFO L134 CoverageAnalysis]: Checked inductivity of 35438 backedges. 0 proven. 35438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:24:44,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:25:02,790 INFO L134 CoverageAnalysis]: Checked inductivity of 35438 backedges. 0 proven. 35438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:25:02,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248860497] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:25:02,791 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:25:02,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-12-13 21:25:02,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511053127] [2022-12-13 21:25:02,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:25:02,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-12-13 21:25:02,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:25:02,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-12-13 21:25:02,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2022-12-13 21:25:02,810 INFO L87 Difference]: Start difference. First operand 1610 states and 1611 transitions. Second operand has 384 states, 381 states have (on average 3.4881889763779528) internal successors, (1329), 194 states have internal predecessors, (1329), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:44,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:25:44,266 INFO L93 Difference]: Finished difference Result 2382 states and 2478 transitions. [2022-12-13 21:25:44,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-12-13 21:25:44,267 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 381 states have (on average 3.4881889763779528) internal successors, (1329), 194 states have internal predecessors, (1329), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 760 [2022-12-13 21:25:44,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:25:44,271 INFO L225 Difference]: With dead ends: 2382 [2022-12-13 21:25:44,271 INFO L226 Difference]: Without dead ends: 2381 [2022-12-13 21:25:44,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1900 GetRequests, 1328 SyntacticMatches, 0 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71820 ImplicationChecksByTransitivity, 38.5s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2022-12-13 21:25:44,287 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 6112 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6112 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:25:44,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6112 Valid, 1586 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 21:25:44,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2022-12-13 21:25:44,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2378. [2022-12-13 21:25:44,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2378 states, 2091 states have (on average 1.0014347202295553) internal successors, (2094), 2092 states have internal predecessors, (2094), 285 states have call successors, (285), 285 states have call predecessors, (285), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:44,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 2379 transitions. [2022-12-13 21:25:44,390 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 2379 transitions. Word has length 760 [2022-12-13 21:25:44,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:25:44,391 INFO L495 AbstractCegarLoop]: Abstraction has 2378 states and 2379 transitions. [2022-12-13 21:25:44,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 381 states have (on average 3.4881889763779528) internal successors, (1329), 194 states have internal predecessors, (1329), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:25:44,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 2379 transitions. [2022-12-13 21:25:44,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 855 [2022-12-13 21:25:44,401 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:25:44,401 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2022-12-13 21:25:44,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 21:25:44,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:25:44,602 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:25:44,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:25:44,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1549621328, now seen corresponding path program 6 times [2022-12-13 21:25:44,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:25:44,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120899604] [2022-12-13 21:25:44,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:25:44,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:25:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:26:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 39809 backedges. 0 proven. 39809 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:26:04,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:26:04,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120899604] [2022-12-13 21:26:04,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120899604] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:26:04,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261444375] [2022-12-13 21:26:04,264 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 21:26:04,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:26:04,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:26:04,265 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:26:04,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 21:26:04,703 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-12-13 21:26:04,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:26:04,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 1641 conjuncts, 192 conjunts are in the unsatisfiable core [2022-12-13 21:26:04,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:26:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 39809 backedges. 0 proven. 39809 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:26:05,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:26:24,617 INFO L134 CoverageAnalysis]: Checked inductivity of 39809 backedges. 0 proven. 39809 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:26:24,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261444375] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:26:24,617 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:26:24,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-12-13 21:26:24,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826642819] [2022-12-13 21:26:24,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:26:24,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-12-13 21:26:24,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:26:24,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-12-13 21:26:24,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2022-12-13 21:26:24,630 INFO L87 Difference]: Start difference. First operand 2378 states and 2379 transitions. Second operand has 384 states, 381 states have (on average 3.9816272965879267) internal successors, (1517), 194 states have internal predecessors, (1517), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:27:07,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:27:07,089 INFO L93 Difference]: Finished difference Result 3247 states and 3343 transitions. [2022-12-13 21:27:07,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-12-13 21:27:07,090 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 381 states have (on average 3.9816272965879267) internal successors, (1517), 194 states have internal predecessors, (1517), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 854 [2022-12-13 21:27:07,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:27:07,095 INFO L225 Difference]: With dead ends: 3247 [2022-12-13 21:27:07,095 INFO L226 Difference]: Without dead ends: 3246 [2022-12-13 21:27:07,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2088 GetRequests, 1516 SyntacticMatches, 0 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71820 ImplicationChecksByTransitivity, 40.0s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2022-12-13 21:27:07,109 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 6765 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6765 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:27:07,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6765 Valid, 1969 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 21:27:07,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3246 states. [2022-12-13 21:27:07,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3246 to 3242. [2022-12-13 21:27:07,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3242 states, 2859 states have (on average 1.0010493179433368) internal successors, (2862), 2860 states have internal predecessors, (2862), 381 states have call successors, (381), 381 states have call predecessors, (381), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:27:07,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3242 states to 3242 states and 3243 transitions. [2022-12-13 21:27:07,220 INFO L78 Accepts]: Start accepts. Automaton has 3242 states and 3243 transitions. Word has length 854 [2022-12-13 21:27:07,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:27:07,221 INFO L495 AbstractCegarLoop]: Abstraction has 3242 states and 3243 transitions. [2022-12-13 21:27:07,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 381 states have (on average 3.9816272965879267) internal successors, (1517), 194 states have internal predecessors, (1517), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:27:07,221 INFO L276 IsEmpty]: Start isEmpty. Operand 3242 states and 3243 transitions. [2022-12-13 21:27:07,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1529 [2022-12-13 21:27:07,234 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:27:07,235 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 190, 190, 190, 190, 1, 1, 1, 1] [2022-12-13 21:27:07,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-12-13 21:27:07,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:27:07,436 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:27:07,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:27:07,438 INFO L85 PathProgramCache]: Analyzing trace with hash 2063834271, now seen corresponding path program 7 times [2022-12-13 21:27:07,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:27:07,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017493820] [2022-12-13 21:27:07,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:27:07,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:27:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:28:50,060 INFO L134 CoverageAnalysis]: Checked inductivity of 144590 backedges. 0 proven. 144590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:28:50,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:28:50,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017493820] [2022-12-13 21:28:50,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017493820] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:28:50,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630178238] [2022-12-13 21:28:50,061 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 21:28:50,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:28:50,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:28:50,062 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:28:50,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 21:28:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:28:50,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 3083 conjuncts, 384 conjunts are in the unsatisfiable core [2022-12-13 21:28:50,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:28:51,623 INFO L134 CoverageAnalysis]: Checked inductivity of 144590 backedges. 0 proven. 144590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:28:51,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:30:04,309 INFO L134 CoverageAnalysis]: Checked inductivity of 144590 backedges. 0 proven. 144590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:30:04,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630178238] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:30:04,309 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:30:04,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [384, 384, 384] total 767 [2022-12-13 21:30:04,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768874401] [2022-12-13 21:30:04,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:30:04,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2022-12-13 21:30:04,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:30:04,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2022-12-13 21:30:04,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147076, Invalid=441980, Unknown=0, NotChecked=0, Total=589056 [2022-12-13 21:30:04,353 INFO L87 Difference]: Start difference. First operand 3242 states and 3243 transitions. Second operand has 768 states, 765 states have (on average 3.4941176470588236) internal successors, (2673), 386 states have internal predecessors, (2673), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:36:32,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:36:32,533 INFO L93 Difference]: Finished difference Result 4782 states and 4974 transitions. [2022-12-13 21:36:32,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 768 states. [2022-12-13 21:36:32,534 INFO L78 Accepts]: Start accepts. Automaton has has 768 states, 765 states have (on average 3.4941176470588236) internal successors, (2673), 386 states have internal predecessors, (2673), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1528 [2022-12-13 21:36:32,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:36:32,542 INFO L225 Difference]: With dead ends: 4782 [2022-12-13 21:36:32,542 INFO L226 Difference]: Without dead ends: 4781 [2022-12-13 21:36:32,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3820 GetRequests, 2672 SyntacticMatches, 0 SemanticMatches, 1148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291084 ImplicationChecksByTransitivity, 151.9s TimeCoverageRelationStatistics Valid=366917, Invalid=954433, Unknown=0, NotChecked=0, Total=1321350 [2022-12-13 21:36:32,611 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 14421 mSDsluCounter, 3097 mSDsCounter, 0 mSdLazyCounter, 2718 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14421 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 2724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:36:32,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14421 Valid, 3111 Invalid, 2724 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 2718 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-13 21:36:32,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4781 states. [2022-12-13 21:36:32,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4781 to 4778. [2022-12-13 21:36:32,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4778 states, 4203 states have (on average 1.0007137758743754) internal successors, (4206), 4204 states have internal predecessors, (4206), 573 states have call successors, (573), 573 states have call predecessors, (573), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:36:32,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4778 states to 4778 states and 4779 transitions. [2022-12-13 21:36:32,908 INFO L78 Accepts]: Start accepts. Automaton has 4778 states and 4779 transitions. Word has length 1528 [2022-12-13 21:36:32,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:36:32,908 INFO L495 AbstractCegarLoop]: Abstraction has 4778 states and 4779 transitions. [2022-12-13 21:36:32,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 768 states, 765 states have (on average 3.4941176470588236) internal successors, (2673), 386 states have internal predecessors, (2673), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:36:32,910 INFO L276 IsEmpty]: Start isEmpty. Operand 4778 states and 4779 transitions. [2022-12-13 21:36:32,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1719 [2022-12-13 21:36:32,926 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:36:32,926 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 190, 190, 190, 190, 190, 1, 1, 1, 1] [2022-12-13 21:36:32,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 21:36:33,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec51617c-6d6c-4271-aee9-4bc475b7d769/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:36:33,127 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 21:36:33,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:36:33,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1234236336, now seen corresponding path program 7 times [2022-12-13 21:36:33,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:36:33,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588377221] [2022-12-13 21:36:33,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:36:33,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:36:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat