./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:50:22,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:50:22,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:50:22,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:50:22,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:50:22,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:50:22,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:50:22,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:50:22,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:50:22,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:50:22,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:50:22,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:50:22,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:50:22,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:50:22,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:50:22,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:50:22,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:50:22,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:50:22,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:50:22,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:50:22,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:50:22,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:50:22,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:50:22,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:50:23,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:50:23,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:50:23,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:50:23,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:50:23,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:50:23,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:50:23,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:50:23,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:50:23,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:50:23,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:50:23,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:50:23,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:50:23,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:50:23,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:50:23,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:50:23,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:50:23,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:50:23,016 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 15:50:23,040 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:50:23,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:50:23,041 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:50:23,041 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:50:23,042 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:50:23,043 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:50:23,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:50:23,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:50:23,044 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:50:23,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:50:23,045 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:50:23,045 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:50:23,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:50:23,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:50:23,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:50:23,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:50:23,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:50:23,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:50:23,047 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:50:23,047 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:50:23,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:50:23,048 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:50:23,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:50:23,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:50:23,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:50:23,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:50:23,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:50:23,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:50:23,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:50:23,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:50:23,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:50:23,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:50:23,051 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:50:23,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:50:23,051 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:50:23,051 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:50:23,052 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_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 [2022-11-25 15:50:23,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:50:23,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:50:23,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:50:23,377 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:50:23,378 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:50:23,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i [2022-11-25 15:50:26,752 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:50:27,190 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:50:27,190 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i [2022-11-25 15:50:27,222 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/data/caf743349/09a8eba9105944b6b5c06096c5e8d275/FLAGd0eead418 [2022-11-25 15:50:27,241 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/data/caf743349/09a8eba9105944b6b5c06096c5e8d275 [2022-11-25 15:50:27,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:50:27,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:50:27,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:50:27,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:50:27,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:50:27,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:50:27" (1/1) ... [2022-11-25 15:50:27,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3837c406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:27, skipping insertion in model container [2022-11-25 15:50:27,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:50:27" (1/1) ... [2022-11-25 15:50:27,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:50:27,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:50:27,808 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_63042180-7bf3-43c1-9bae-8d42966cd60b/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i[33021,33034] [2022-11-25 15:50:27,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:50:28,016 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:50:28,078 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_63042180-7bf3-43c1-9bae-8d42966cd60b/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i[33021,33034] [2022-11-25 15:50:28,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:50:28,251 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:50:28,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:28 WrapperNode [2022-11-25 15:50:28,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:50:28,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:50:28,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:50:28,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:50:28,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:28" (1/1) ... [2022-11-25 15:50:28,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:28" (1/1) ... [2022-11-25 15:50:28,370 INFO L138 Inliner]: procedures = 177, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 778 [2022-11-25 15:50:28,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:50:28,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:50:28,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:50:28,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:50:28,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:28" (1/1) ... [2022-11-25 15:50:28,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:28" (1/1) ... [2022-11-25 15:50:28,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:28" (1/1) ... [2022-11-25 15:50:28,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:28" (1/1) ... [2022-11-25 15:50:28,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:28" (1/1) ... [2022-11-25 15:50:28,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:28" (1/1) ... [2022-11-25 15:50:28,475 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:28" (1/1) ... [2022-11-25 15:50:28,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:28" (1/1) ... [2022-11-25 15:50:28,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:50:28,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:50:28,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:50:28,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:50:28,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:28" (1/1) ... [2022-11-25 15:50:28,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:50:28,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:28,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:50:28,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:50:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:50:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 15:50:28,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 15:50:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:50:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 15:50:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 15:50:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 15:50:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:50:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:50:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 15:50:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 15:50:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:50:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:50:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:50:28,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:50:28,926 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:50:28,930 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:50:30,509 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:50:30,521 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:50:30,522 INFO L300 CfgBuilder]: Removed 40 assume(true) statements. [2022-11-25 15:50:30,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:50:30 BoogieIcfgContainer [2022-11-25 15:50:30,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:50:30,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:50:30,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:50:30,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:50:30,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:50:27" (1/3) ... [2022-11-25 15:50:30,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7cf231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:50:30, skipping insertion in model container [2022-11-25 15:50:30,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:50:28" (2/3) ... [2022-11-25 15:50:30,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7cf231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:50:30, skipping insertion in model container [2022-11-25 15:50:30,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:50:30" (3/3) ... [2022-11-25 15:50:30,544 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test1-2.i [2022-11-25 15:50:30,569 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:50:30,569 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 15:50:30,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:50:30,662 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;@4d6d54af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:50:30,663 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 15:50:30,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 143 states have (on average 1.6853146853146854) internal successors, (241), 159 states have internal predecessors, (241), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 15:50:30,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 15:50:30,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:30,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 15:50:30,679 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:50:30,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:30,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1126628338, now seen corresponding path program 1 times [2022-11-25 15:50:30,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:30,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984110428] [2022-11-25 15:50:30,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:30,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:30,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:50:30,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:30,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984110428] [2022-11-25 15:50:30,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984110428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:50:30,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:50:30,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:50:30,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303638889] [2022-11-25 15:50:30,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:50:30,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:50:30,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:31,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:50:31,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:50:31,012 INFO L87 Difference]: Start difference. First operand has 165 states, 143 states have (on average 1.6853146853146854) internal successors, (241), 159 states have internal predecessors, (241), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:31,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:50:31,121 INFO L93 Difference]: Finished difference Result 418 states and 696 transitions. [2022-11-25 15:50:31,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:50:31,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 15:50:31,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:50:31,137 INFO L225 Difference]: With dead ends: 418 [2022-11-25 15:50:31,137 INFO L226 Difference]: Without dead ends: 222 [2022-11-25 15:50:31,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:50:31,146 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 110 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:50:31,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 457 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:50:31,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-25 15:50:31,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 136. [2022-11-25 15:50:31,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 116 states have (on average 1.3448275862068966) internal successors, (156), 130 states have internal predecessors, (156), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 15:50:31,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 182 transitions. [2022-11-25 15:50:31,211 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 182 transitions. Word has length 6 [2022-11-25 15:50:31,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:50:31,212 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 182 transitions. [2022-11-25 15:50:31,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:31,212 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 182 transitions. [2022-11-25 15:50:31,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 15:50:31,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:31,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:50:31,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:50:31,216 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:50:31,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:31,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1053673023, now seen corresponding path program 1 times [2022-11-25 15:50:31,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:31,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999037319] [2022-11-25 15:50:31,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:31,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:31,418 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:50:31,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [170074749] [2022-11-25 15:50:31,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:31,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:31,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:31,442 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:50:31,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:50:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:32,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:50:32,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:50:32,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:50:32,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:50:32,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:32,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999037319] [2022-11-25 15:50:32,368 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:50:32,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170074749] [2022-11-25 15:50:32,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170074749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:50:32,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:50:32,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:50:32,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112483659] [2022-11-25 15:50:32,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:50:32,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:50:32,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:32,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:50:32,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:50:32,373 INFO L87 Difference]: Start difference. First operand 136 states and 182 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:32,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:50:32,528 INFO L93 Difference]: Finished difference Result 286 states and 388 transitions. [2022-11-25 15:50:32,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:50:32,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-11-25 15:50:32,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:50:32,531 INFO L225 Difference]: With dead ends: 286 [2022-11-25 15:50:32,532 INFO L226 Difference]: Without dead ends: 157 [2022-11-25 15:50:32,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:50:32,534 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 9 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:50:32,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 299 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:50:32,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-25 15:50:32,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2022-11-25 15:50:32,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 136 states have (on average 1.2941176470588236) internal successors, (176), 150 states have internal predecessors, (176), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 15:50:32,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 202 transitions. [2022-11-25 15:50:32,550 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 202 transitions. Word has length 56 [2022-11-25 15:50:32,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:50:32,550 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 202 transitions. [2022-11-25 15:50:32,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:32,551 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 202 transitions. [2022-11-25 15:50:32,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 15:50:32,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:32,553 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:50:32,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 15:50:32,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:32,763 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:50:32,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:32,764 INFO L85 PathProgramCache]: Analyzing trace with hash 778913409, now seen corresponding path program 1 times [2022-11-25 15:50:32,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:32,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896748263] [2022-11-25 15:50:32,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:32,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:32,955 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:50:32,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176198079] [2022-11-25 15:50:32,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:32,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:32,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:32,957 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:50:32,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:50:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:33,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:50:33,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:50:33,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:50:33,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:50:33,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:33,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896748263] [2022-11-25 15:50:33,874 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:50:33,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176198079] [2022-11-25 15:50:33,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176198079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:50:33,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:50:33,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:50:33,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748507364] [2022-11-25 15:50:33,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:50:33,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:50:33,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:33,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:50:33,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:50:33,886 INFO L87 Difference]: Start difference. First operand 156 states and 202 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:34,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:50:34,009 INFO L93 Difference]: Finished difference Result 295 states and 387 transitions. [2022-11-25 15:50:34,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:50:34,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-11-25 15:50:34,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:50:34,012 INFO L225 Difference]: With dead ends: 295 [2022-11-25 15:50:34,013 INFO L226 Difference]: Without dead ends: 146 [2022-11-25 15:50:34,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:50:34,023 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 139 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:50:34,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 333 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:50:34,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-25 15:50:34,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 142. [2022-11-25 15:50:34,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.2704918032786885) internal successors, (155), 136 states have internal predecessors, (155), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 15:50:34,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 181 transitions. [2022-11-25 15:50:34,048 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 181 transitions. Word has length 56 [2022-11-25 15:50:34,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:50:34,049 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 181 transitions. [2022-11-25 15:50:34,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:34,049 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 181 transitions. [2022-11-25 15:50:34,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 15:50:34,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:34,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:50:34,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:50:34,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:34,252 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:50:34,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:34,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1492117709, now seen corresponding path program 1 times [2022-11-25 15:50:34,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:34,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762636092] [2022-11-25 15:50:34,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:34,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:34,428 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:50:34,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232270020] [2022-11-25 15:50:34,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:34,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:34,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:34,438 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:50:34,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 15:50:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:35,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:50:35,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:50:35,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:50:35,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:50:35,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:35,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762636092] [2022-11-25 15:50:35,476 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:50:35,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232270020] [2022-11-25 15:50:35,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232270020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:50:35,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:50:35,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:50:35,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370063475] [2022-11-25 15:50:35,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:50:35,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:50:35,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:35,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:50:35,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:50:35,479 INFO L87 Difference]: Start difference. First operand 142 states and 181 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:35,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:50:35,518 INFO L93 Difference]: Finished difference Result 142 states and 181 transitions. [2022-11-25 15:50:35,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:50:35,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-11-25 15:50:35,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:50:35,521 INFO L225 Difference]: With dead ends: 142 [2022-11-25 15:50:35,521 INFO L226 Difference]: Without dead ends: 141 [2022-11-25 15:50:35,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:50:35,523 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 83 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:50:35,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 338 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:50:35,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-25 15:50:35,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2022-11-25 15:50:35,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 122 states have (on average 1.2622950819672132) internal successors, (154), 135 states have internal predecessors, (154), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 15:50:35,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 180 transitions. [2022-11-25 15:50:35,536 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 180 transitions. Word has length 56 [2022-11-25 15:50:35,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:50:35,537 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 180 transitions. [2022-11-25 15:50:35,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:35,537 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 180 transitions. [2022-11-25 15:50:35,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-25 15:50:35,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:35,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:50:35,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-25 15:50:35,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:35,750 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:50:35,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:35,751 INFO L85 PathProgramCache]: Analyzing trace with hash 988991685, now seen corresponding path program 1 times [2022-11-25 15:50:35,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:35,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681762104] [2022-11-25 15:50:35,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:35,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:35,924 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:50:35,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1266649182] [2022-11-25 15:50:35,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:35,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:35,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:35,935 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:50:35,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 15:50:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:36,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:50:36,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:50:37,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:50:37,055 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:50:37,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:37,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681762104] [2022-11-25 15:50:37,056 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:50:37,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266649182] [2022-11-25 15:50:37,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266649182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:50:37,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:50:37,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:50:37,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271534066] [2022-11-25 15:50:37,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:50:37,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:50:37,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:37,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:50:37,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:50:37,059 INFO L87 Difference]: Start difference. First operand 141 states and 180 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:37,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:50:37,111 INFO L93 Difference]: Finished difference Result 232 states and 290 transitions. [2022-11-25 15:50:37,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:50:37,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-11-25 15:50:37,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:50:37,114 INFO L225 Difference]: With dead ends: 232 [2022-11-25 15:50:37,114 INFO L226 Difference]: Without dead ends: 231 [2022-11-25 15:50:37,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:50:37,115 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 49 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:50:37,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 488 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:50:37,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-25 15:50:37,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-11-25 15:50:37,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 209 states have (on average 1.229665071770335) internal successors, (257), 222 states have internal predecessors, (257), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 15:50:37,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 289 transitions. [2022-11-25 15:50:37,130 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 289 transitions. Word has length 57 [2022-11-25 15:50:37,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:50:37,131 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 289 transitions. [2022-11-25 15:50:37,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:37,131 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 289 transitions. [2022-11-25 15:50:37,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 15:50:37,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:37,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:50:37,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 15:50:37,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:37,344 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:50:37,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:37,345 INFO L85 PathProgramCache]: Analyzing trace with hash -268562827, now seen corresponding path program 1 times [2022-11-25 15:50:37,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:37,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384291658] [2022-11-25 15:50:37,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:37,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:37,501 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:50:37,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [391701437] [2022-11-25 15:50:37,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:37,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:37,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:37,505 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:50:37,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 15:50:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:38,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:50:38,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:50:38,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:50:38,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:50:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:50:38,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:38,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384291658] [2022-11-25 15:50:38,954 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:50:38,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391701437] [2022-11-25 15:50:38,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391701437] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:50:38,954 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:50:38,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 15:50:38,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110491538] [2022-11-25 15:50:38,955 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:50:38,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:50:38,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:38,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:50:38,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:50:38,959 INFO L87 Difference]: Start difference. First operand 231 states and 289 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:39,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:50:39,077 INFO L93 Difference]: Finished difference Result 361 states and 460 transitions. [2022-11-25 15:50:39,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:50:39,077 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-25 15:50:39,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:50:39,080 INFO L225 Difference]: With dead ends: 361 [2022-11-25 15:50:39,080 INFO L226 Difference]: Without dead ends: 327 [2022-11-25 15:50:39,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:50:39,081 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 301 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:50:39,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 1054 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:50:39,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-11-25 15:50:39,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2022-11-25 15:50:39,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 302 states have (on average 1.2152317880794703) internal successors, (367), 315 states have internal predecessors, (367), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 15:50:39,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 405 transitions. [2022-11-25 15:50:39,099 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 405 transitions. Word has length 61 [2022-11-25 15:50:39,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:50:39,100 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 405 transitions. [2022-11-25 15:50:39,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:39,100 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 405 transitions. [2022-11-25 15:50:39,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-25 15:50:39,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:39,102 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:50:39,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 15:50:39,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 15:50:39,318 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:50:39,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:39,318 INFO L85 PathProgramCache]: Analyzing trace with hash 255277007, now seen corresponding path program 1 times [2022-11-25 15:50:39,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:39,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942707834] [2022-11-25 15:50:39,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:39,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:39,502 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:50:39,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079831568] [2022-11-25 15:50:39,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:39,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:39,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:39,511 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:50:39,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 15:50:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:40,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:50:40,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:50:40,866 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:50:40,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:50:40,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:40,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942707834] [2022-11-25 15:50:40,867 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:50:40,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079831568] [2022-11-25 15:50:40,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079831568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:50:40,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:50:40,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:50:40,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030701233] [2022-11-25 15:50:40,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:50:40,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:50:40,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:40,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:50:40,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:50:40,872 INFO L87 Difference]: Start difference. First operand 327 states and 405 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:40,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:50:40,947 INFO L93 Difference]: Finished difference Result 594 states and 742 transitions. [2022-11-25 15:50:40,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:50:40,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-11-25 15:50:40,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:50:40,950 INFO L225 Difference]: With dead ends: 594 [2022-11-25 15:50:40,950 INFO L226 Difference]: Without dead ends: 325 [2022-11-25 15:50:40,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:50:40,952 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 15 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:50:40,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 320 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:50:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-11-25 15:50:40,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2022-11-25 15:50:40,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 300 states have (on average 1.2133333333333334) internal successors, (364), 313 states have internal predecessors, (364), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 15:50:40,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 402 transitions. [2022-11-25 15:50:40,969 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 402 transitions. Word has length 62 [2022-11-25 15:50:40,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:50:40,970 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 402 transitions. [2022-11-25 15:50:40,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:50:40,970 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 402 transitions. [2022-11-25 15:50:40,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 15:50:40,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:40,972 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:50:40,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 15:50:41,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 15:50:41,184 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:50:41,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:41,185 INFO L85 PathProgramCache]: Analyzing trace with hash -201227472, now seen corresponding path program 1 times [2022-11-25 15:50:41,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:41,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483479655] [2022-11-25 15:50:41,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:41,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:41,283 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:50:41,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193468266] [2022-11-25 15:50:41,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:41,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:41,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:41,285 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:50:41,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 15:50:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:45,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:50:45,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:50:45,513 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:50:45,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:50:45,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:45,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483479655] [2022-11-25 15:50:45,514 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:50:45,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193468266] [2022-11-25 15:50:45,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193468266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:50:45,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:50:45,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:50:45,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519378963] [2022-11-25 15:50:45,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:50:45,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:50:45,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:45,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:50:45,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:50:45,518 INFO L87 Difference]: Start difference. First operand 325 states and 402 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 15:50:45,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:50:45,566 INFO L93 Difference]: Finished difference Result 601 states and 758 transitions. [2022-11-25 15:50:45,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:50:45,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 77 [2022-11-25 15:50:45,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:50:45,569 INFO L225 Difference]: With dead ends: 601 [2022-11-25 15:50:45,569 INFO L226 Difference]: Without dead ends: 328 [2022-11-25 15:50:45,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:50:45,571 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 2 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:50:45,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 494 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:50:45,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-11-25 15:50:45,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2022-11-25 15:50:45,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 302 states have (on average 1.2152317880794703) internal successors, (367), 316 states have internal predecessors, (367), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-25 15:50:45,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 408 transitions. [2022-11-25 15:50:45,590 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 408 transitions. Word has length 77 [2022-11-25 15:50:45,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:50:45,591 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 408 transitions. [2022-11-25 15:50:45,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 15:50:45,591 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 408 transitions. [2022-11-25 15:50:45,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 15:50:45,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:45,593 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:50:45,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-25 15:50:45,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:45,809 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:50:45,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:45,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1287301230, now seen corresponding path program 1 times [2022-11-25 15:50:45,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:45,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709906351] [2022-11-25 15:50:45,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:45,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:45,874 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:50:45,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [382653650] [2022-11-25 15:50:45,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:45,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:45,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:45,877 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:50:45,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 15:50:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 15:50:47,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:50:47,991 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 15:50:47,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:50:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 15:50:48,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:48,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709906351] [2022-11-25 15:50:48,115 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:50:48,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382653650] [2022-11-25 15:50:48,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382653650] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:50:48,116 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:50:48,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 15:50:48,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136779263] [2022-11-25 15:50:48,117 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:50:48,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:50:48,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:48,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:50:48,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:50:48,119 INFO L87 Difference]: Start difference. First operand 328 states and 408 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:50:48,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:50:48,312 INFO L93 Difference]: Finished difference Result 615 states and 785 transitions. [2022-11-25 15:50:48,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 15:50:48,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 79 [2022-11-25 15:50:48,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:50:48,315 INFO L225 Difference]: With dead ends: 615 [2022-11-25 15:50:48,316 INFO L226 Difference]: Without dead ends: 339 [2022-11-25 15:50:48,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:50:48,317 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 8 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:50:48,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 659 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:50:48,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-11-25 15:50:48,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2022-11-25 15:50:48,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 310 states have (on average 1.229032258064516) internal successors, (381), 324 states have internal predecessors, (381), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-25 15:50:48,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 422 transitions. [2022-11-25 15:50:48,338 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 422 transitions. Word has length 79 [2022-11-25 15:50:48,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:50:48,339 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 422 transitions. [2022-11-25 15:50:48,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:50:48,339 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 422 transitions. [2022-11-25 15:50:48,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 15:50:48,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:48,341 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:50:48,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 15:50:48,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:48,565 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:50:48,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:48,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1957432592, now seen corresponding path program 2 times [2022-11-25 15:50:48,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:48,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762839110] [2022-11-25 15:50:48,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:48,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:48,634 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:50:48,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1290623231] [2022-11-25 15:50:48,634 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:50:48,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:48,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:48,636 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:50:48,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 15:50:49,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:50:49,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:50:49,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-25 15:50:49,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:50:50,122 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 15:50:50,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:50:50,432 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 15:50:50,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:50,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762839110] [2022-11-25 15:50:50,433 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:50:50,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290623231] [2022-11-25 15:50:50,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290623231] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:50:50,433 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:50:50,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 15 [2022-11-25 15:50:50,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674917204] [2022-11-25 15:50:50,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:50:50,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 15:50:50,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:50,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 15:50:50,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-25 15:50:50,437 INFO L87 Difference]: Start difference. First operand 337 states and 422 transitions. Second operand has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 15:50:51,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:50:51,053 INFO L93 Difference]: Finished difference Result 674 states and 875 transitions. [2022-11-25 15:50:51,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 15:50:51,055 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 83 [2022-11-25 15:50:51,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:50:51,060 INFO L225 Difference]: With dead ends: 674 [2022-11-25 15:50:51,060 INFO L226 Difference]: Without dead ends: 343 [2022-11-25 15:50:51,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2022-11-25 15:50:51,063 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 158 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:50:51,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1128 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 15:50:51,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-11-25 15:50:51,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 334. [2022-11-25 15:50:51,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 307 states have (on average 1.228013029315961) internal successors, (377), 321 states have internal predecessors, (377), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-25 15:50:51,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 418 transitions. [2022-11-25 15:50:51,089 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 418 transitions. Word has length 83 [2022-11-25 15:50:51,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:50:51,091 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 418 transitions. [2022-11-25 15:50:51,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 15:50:51,092 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 418 transitions. [2022-11-25 15:50:51,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-25 15:50:51,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:51,093 INFO L195 NwaCegarLoop]: trace histogram [12, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:50:51,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 15:50:51,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 15:50:51,306 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:50:51,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:51,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1319164720, now seen corresponding path program 3 times [2022-11-25 15:50:51,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:51,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122598680] [2022-11-25 15:50:51,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:51,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:51,396 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:50:51,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1785341753] [2022-11-25 15:50:51,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 15:50:51,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:50:51,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:50:51,405 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:50:51,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 15:51:52,004 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 15:51:52,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:51:52,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:51:52,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:52,178 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 15:51:52,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:51:52,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:52,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122598680] [2022-11-25 15:51:52,179 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:51:52,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785341753] [2022-11-25 15:51:52,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785341753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:51:52,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:51:52,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:51:52,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515454188] [2022-11-25 15:51:52,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:51:52,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:51:52,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:52,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:51:52,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:51:52,182 INFO L87 Difference]: Start difference. First operand 334 states and 418 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 15:51:52,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:51:52,298 INFO L93 Difference]: Finished difference Result 334 states and 418 transitions. [2022-11-25 15:51:52,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:51:52,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 89 [2022-11-25 15:51:52,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:51:52,301 INFO L225 Difference]: With dead ends: 334 [2022-11-25 15:51:52,301 INFO L226 Difference]: Without dead ends: 333 [2022-11-25 15:51:52,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:51:52,302 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 196 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:51:52,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 726 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:51:52,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-11-25 15:51:52,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-11-25 15:51:52,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 307 states have (on average 1.221498371335505) internal successors, (375), 320 states have internal predecessors, (375), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-25 15:51:52,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 416 transitions. [2022-11-25 15:51:52,321 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 416 transitions. Word has length 89 [2022-11-25 15:51:52,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:51:52,322 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 416 transitions. [2022-11-25 15:51:52,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 15:51:52,322 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 416 transitions. [2022-11-25 15:51:52,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-25 15:51:52,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:51:52,349 INFO L195 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:52,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:52,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:51:52,564 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:51:52,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:52,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1660450332, now seen corresponding path program 1 times [2022-11-25 15:51:52,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:52,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978747753] [2022-11-25 15:51:52,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:52,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:52,819 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:51:52,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [538584158] [2022-11-25 15:51:52,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:52,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:51:52,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:52,821 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:51:52,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 15:51:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:54,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 3781 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 15:51:54,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:55,213 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 15:51:55,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:51:55,649 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 15:51:55,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:55,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978747753] [2022-11-25 15:51:55,650 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:51:55,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538584158] [2022-11-25 15:51:55,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538584158] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:51:55,650 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:51:55,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-11-25 15:51:55,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775572221] [2022-11-25 15:51:55,764 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:51:55,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 15:51:55,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:55,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 15:51:55,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-11-25 15:51:55,766 INFO L87 Difference]: Start difference. First operand 333 states and 416 transitions. Second operand has 14 states, 13 states have (on average 26.692307692307693) internal successors, (347), 14 states have internal predecessors, (347), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:51:55,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:51:55,991 INFO L93 Difference]: Finished difference Result 454 states and 578 transitions. [2022-11-25 15:51:55,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 15:51:55,992 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 26.692307692307693) internal successors, (347), 14 states have internal predecessors, (347), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 194 [2022-11-25 15:51:55,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:51:55,995 INFO L225 Difference]: With dead ends: 454 [2022-11-25 15:51:55,995 INFO L226 Difference]: Without dead ends: 453 [2022-11-25 15:51:55,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-11-25 15:51:55,997 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 487 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:51:55,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 1222 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:51:55,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-11-25 15:51:56,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 332. [2022-11-25 15:51:56,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 307 states have (on average 1.218241042345277) internal successors, (374), 319 states have internal predecessors, (374), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-25 15:51:56,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 415 transitions. [2022-11-25 15:51:56,023 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 415 transitions. Word has length 194 [2022-11-25 15:51:56,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:51:56,024 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 415 transitions. [2022-11-25 15:51:56,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 26.692307692307693) internal successors, (347), 14 states have internal predecessors, (347), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:51:56,024 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 415 transitions. [2022-11-25 15:51:56,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-25 15:51:56,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:51:56,028 INFO L195 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:56,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:56,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 15:51:56,248 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:51:56,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:56,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1489182740, now seen corresponding path program 1 times [2022-11-25 15:51:56,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:56,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855135670] [2022-11-25 15:51:56,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:56,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:56,478 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:51:56,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2110827592] [2022-11-25 15:51:56,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:56,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:51:56,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:56,480 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:51:56,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 15:51:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:58,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 3804 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:51:58,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:59,070 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 15:51:59,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:51:59,420 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 15:51:59,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:59,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855135670] [2022-11-25 15:51:59,421 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:51:59,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110827592] [2022-11-25 15:51:59,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110827592] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:51:59,421 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:51:59,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-11-25 15:51:59,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393816466] [2022-11-25 15:51:59,422 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:51:59,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 15:51:59,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:59,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 15:51:59,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-11-25 15:51:59,424 INFO L87 Difference]: Start difference. First operand 332 states and 415 transitions. Second operand has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:51:59,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:51:59,692 INFO L93 Difference]: Finished difference Result 733 states and 915 transitions. [2022-11-25 15:51:59,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 15:51:59,693 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 198 [2022-11-25 15:51:59,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:51:59,698 INFO L225 Difference]: With dead ends: 733 [2022-11-25 15:51:59,699 INFO L226 Difference]: Without dead ends: 700 [2022-11-25 15:51:59,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2022-11-25 15:51:59,700 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 535 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:51:59,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 1614 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:51:59,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-11-25 15:51:59,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2022-11-25 15:51:59,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 663 states have (on average 1.191553544494721) internal successors, (790), 675 states have internal predecessors, (790), 31 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (38), 22 states have call predecessors, (38), 31 states have call successors, (38) [2022-11-25 15:51:59,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 859 transitions. [2022-11-25 15:51:59,740 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 859 transitions. Word has length 198 [2022-11-25 15:51:59,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:51:59,740 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 859 transitions. [2022-11-25 15:51:59,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:51:59,741 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 859 transitions. [2022-11-25 15:51:59,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-11-25 15:51:59,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:51:59,750 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:59,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 15:51:59,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 15:51:59,970 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:51:59,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:59,971 INFO L85 PathProgramCache]: Analyzing trace with hash 588284500, now seen corresponding path program 2 times [2022-11-25 15:51:59,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:59,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768198706] [2022-11-25 15:51:59,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:59,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:00,637 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:52:00,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644141445] [2022-11-25 15:52:00,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:52:00,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:00,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:00,639 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:52:00,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 15:52:03,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 15:52:03,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:52:03,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:52:03,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1244 trivial. 0 not checked. [2022-11-25 15:52:04,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:52:04,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:04,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768198706] [2022-11-25 15:52:04,348 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:52:04,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644141445] [2022-11-25 15:52:04,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644141445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:52:04,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:52:04,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:52:04,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158825680] [2022-11-25 15:52:04,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:52:04,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:52:04,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:04,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:52:04,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:52:04,352 INFO L87 Difference]: Start difference. First operand 700 states and 859 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 15:52:04,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:04,454 INFO L93 Difference]: Finished difference Result 700 states and 859 transitions. [2022-11-25 15:52:04,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:52:04,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 418 [2022-11-25 15:52:04,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:04,459 INFO L225 Difference]: With dead ends: 700 [2022-11-25 15:52:04,460 INFO L226 Difference]: Without dead ends: 699 [2022-11-25 15:52:04,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:52:04,461 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 99 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:04,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 266 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:52:04,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-11-25 15:52:04,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2022-11-25 15:52:04,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 663 states have (on average 1.1900452488687783) internal successors, (789), 674 states have internal predecessors, (789), 31 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (38), 22 states have call predecessors, (38), 31 states have call successors, (38) [2022-11-25 15:52:04,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 858 transitions. [2022-11-25 15:52:04,501 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 858 transitions. Word has length 418 [2022-11-25 15:52:04,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:04,502 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 858 transitions. [2022-11-25 15:52:04,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 15:52:04,503 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 858 transitions. [2022-11-25 15:52:04,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-11-25 15:52:04,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:04,512 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:04,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 15:52:04,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 15:52:04,726 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:52:04,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:04,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1056950740, now seen corresponding path program 1 times [2022-11-25 15:52:04,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:04,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708869631] [2022-11-25 15:52:04,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:04,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:05,397 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:52:05,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1841003608] [2022-11-25 15:52:05,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:05,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:05,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:05,399 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:52:05,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 15:52:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:10,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 9721 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-25 15:52:10,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:11,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 15:52:11,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:52:12,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 15:52:12,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:12,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708869631] [2022-11-25 15:52:12,497 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:52:12,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841003608] [2022-11-25 15:52:12,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841003608] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:52:12,497 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:52:12,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 21 [2022-11-25 15:52:12,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446031139] [2022-11-25 15:52:12,498 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:52:12,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-25 15:52:12,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:12,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-25 15:52:12,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-11-25 15:52:12,501 INFO L87 Difference]: Start difference. First operand 699 states and 858 transitions. Second operand has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:52:12,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:12,894 INFO L93 Difference]: Finished difference Result 1007 states and 1245 transitions. [2022-11-25 15:52:12,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 15:52:12,895 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 419 [2022-11-25 15:52:12,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:12,906 INFO L225 Difference]: With dead ends: 1007 [2022-11-25 15:52:12,906 INFO L226 Difference]: Without dead ends: 975 [2022-11-25 15:52:12,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 806 SyntacticMatches, 11 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=273, Invalid=597, Unknown=0, NotChecked=0, Total=870 [2022-11-25 15:52:12,910 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 651 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:12,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 1895 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 15:52:12,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-11-25 15:52:12,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 975. [2022-11-25 15:52:12,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 930 states have (on average 1.1838709677419355) internal successors, (1101), 941 states have internal predecessors, (1101), 40 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (50), 31 states have call predecessors, (50), 40 states have call successors, (50) [2022-11-25 15:52:12,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1191 transitions. [2022-11-25 15:52:12,985 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1191 transitions. Word has length 419 [2022-11-25 15:52:12,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:12,986 INFO L495 AbstractCegarLoop]: Abstraction has 975 states and 1191 transitions. [2022-11-25 15:52:12,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:52:12,987 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1191 transitions. [2022-11-25 15:52:12,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2022-11-25 15:52:12,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:12,993 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:13,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-25 15:52:13,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 15:52:13,219 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:52:13,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:13,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1026889557, now seen corresponding path program 2 times [2022-11-25 15:52:13,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:13,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128637152] [2022-11-25 15:52:13,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:13,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:14,173 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:52:14,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [929848226] [2022-11-25 15:52:14,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:52:14,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:14,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:14,178 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:52:14,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-25 15:52:18,432 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 15:52:18,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:52:18,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:52:18,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:19,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2561 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:52:19,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:52:19,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:19,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128637152] [2022-11-25 15:52:19,305 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:52:19,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929848226] [2022-11-25 15:52:19,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929848226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:52:19,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:52:19,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:52:19,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363712420] [2022-11-25 15:52:19,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:52:19,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:52:19,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:19,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:52:19,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:52:19,307 INFO L87 Difference]: Start difference. First operand 975 states and 1191 transitions. Second operand has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 15:52:19,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:19,391 INFO L93 Difference]: Finished difference Result 1000 states and 1236 transitions. [2022-11-25 15:52:19,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:52:19,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 584 [2022-11-25 15:52:19,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:19,398 INFO L225 Difference]: With dead ends: 1000 [2022-11-25 15:52:19,398 INFO L226 Difference]: Without dead ends: 999 [2022-11-25 15:52:19,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 581 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:52:19,400 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 60 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:19,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 357 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:52:19,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2022-11-25 15:52:19,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 978. [2022-11-25 15:52:19,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 933 states have (on average 1.1832797427652733) internal successors, (1104), 944 states have internal predecessors, (1104), 40 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (50), 31 states have call predecessors, (50), 40 states have call successors, (50) [2022-11-25 15:52:19,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1194 transitions. [2022-11-25 15:52:19,457 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1194 transitions. Word has length 584 [2022-11-25 15:52:19,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:19,459 INFO L495 AbstractCegarLoop]: Abstraction has 978 states and 1194 transitions. [2022-11-25 15:52:19,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 15:52:19,459 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1194 transitions. [2022-11-25 15:52:19,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2022-11-25 15:52:19,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:19,466 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:19,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-25 15:52:19,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:19,679 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:52:19,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:19,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1757886514, now seen corresponding path program 1 times [2022-11-25 15:52:19,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:19,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811105597] [2022-11-25 15:52:19,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:19,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:20,636 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:52:20,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [80578659] [2022-11-25 15:52:20,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:20,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:20,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:20,643 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:52:20,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-25 15:52:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:28,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 14194 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:52:28,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:29,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2564 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:52:29,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:52:30,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2564 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:52:30,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:30,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811105597] [2022-11-25 15:52:30,440 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:52:30,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80578659] [2022-11-25 15:52:30,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80578659] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:52:30,440 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:52:30,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2022-11-25 15:52:30,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733284366] [2022-11-25 15:52:30,441 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:52:30,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:52:30,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:30,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:52:30,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:52:30,444 INFO L87 Difference]: Start difference. First operand 978 states and 1194 transitions. Second operand has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-25 15:52:30,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:30,901 INFO L93 Difference]: Finished difference Result 1069 states and 1344 transitions. [2022-11-25 15:52:30,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 15:52:30,903 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 596 [2022-11-25 15:52:30,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:30,909 INFO L225 Difference]: With dead ends: 1069 [2022-11-25 15:52:30,909 INFO L226 Difference]: Without dead ends: 1068 [2022-11-25 15:52:30,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1197 GetRequests, 1182 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2022-11-25 15:52:30,916 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 332 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:30,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 538 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 15:52:30,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-11-25 15:52:30,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1068. [2022-11-25 15:52:30,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 990 states have (on average 1.2030303030303031) internal successors, (1191), 1031 states have internal predecessors, (1191), 70 states have call successors, (70), 6 states have call predecessors, (70), 7 states have return successors, (80), 34 states have call predecessors, (80), 70 states have call successors, (80) [2022-11-25 15:52:30,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1341 transitions. [2022-11-25 15:52:30,992 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1341 transitions. Word has length 596 [2022-11-25 15:52:30,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:30,993 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1341 transitions. [2022-11-25 15:52:30,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-25 15:52:30,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1341 transitions. [2022-11-25 15:52:31,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2022-11-25 15:52:31,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:31,001 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:31,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-25 15:52:31,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:31,211 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:52:31,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:31,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1961998903, now seen corresponding path program 2 times [2022-11-25 15:52:31,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:31,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277629018] [2022-11-25 15:52:31,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:31,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:32,124 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:52:32,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1240701507] [2022-11-25 15:52:32,125 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:52:32,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:32,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:32,131 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:52:32,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-25 15:52:41,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:52:41,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:52:41,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 14302 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 15:52:41,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:42,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:52:42,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:52:43,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 2585 trivial. 0 not checked. [2022-11-25 15:52:43,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:43,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277629018] [2022-11-25 15:52:43,296 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:52:43,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240701507] [2022-11-25 15:52:43,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240701507] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:52:43,296 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:52:43,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2022-11-25 15:52:43,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117636736] [2022-11-25 15:52:43,297 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:52:43,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-25 15:52:43,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:43,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-25 15:52:43,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-11-25 15:52:43,300 INFO L87 Difference]: Start difference. First operand 1068 states and 1341 transitions. Second operand has 22 states, 21 states have (on average 10.428571428571429) internal successors, (219), 22 states have internal predecessors, (219), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-11-25 15:52:44,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:44,772 INFO L93 Difference]: Finished difference Result 1249 states and 1641 transitions. [2022-11-25 15:52:44,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-25 15:52:44,776 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.428571428571429) internal successors, (219), 22 states have internal predecessors, (219), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 632 [2022-11-25 15:52:44,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:44,784 INFO L225 Difference]: With dead ends: 1249 [2022-11-25 15:52:44,784 INFO L226 Difference]: Without dead ends: 1248 [2022-11-25 15:52:44,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1281 GetRequests, 1242 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2022-11-25 15:52:44,787 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 1498 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 748 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 748 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:44,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 695 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [748 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 15:52:44,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-11-25 15:52:44,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1248. [2022-11-25 15:52:44,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 1104 states have (on average 1.236413043478261) internal successors, (1365), 1205 states have internal predecessors, (1365), 130 states have call successors, (130), 12 states have call predecessors, (130), 13 states have return successors, (140), 40 states have call predecessors, (140), 130 states have call successors, (140) [2022-11-25 15:52:44,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1635 transitions. [2022-11-25 15:52:44,927 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1635 transitions. Word has length 632 [2022-11-25 15:52:44,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:44,928 INFO L495 AbstractCegarLoop]: Abstraction has 1248 states and 1635 transitions. [2022-11-25 15:52:44,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.428571428571429) internal successors, (219), 22 states have internal predecessors, (219), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-11-25 15:52:44,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1635 transitions. [2022-11-25 15:52:44,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2022-11-25 15:52:44,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:44,939 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:45,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-25 15:52:45,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-25 15:52:45,155 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:52:45,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:45,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1449663881, now seen corresponding path program 3 times [2022-11-25 15:52:45,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:45,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839994730] [2022-11-25 15:52:45,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:45,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:46,160 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:52:46,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654021050] [2022-11-25 15:52:46,160 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 15:52:46,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:46,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:46,162 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:52:46,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-25 15:52:53,240 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 15:52:53,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:52:53,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 1566 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:52:53,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:53,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3131 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 3020 trivial. 0 not checked. [2022-11-25 15:52:53,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:52:53,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:53,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839994730] [2022-11-25 15:52:53,372 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:52:53,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654021050] [2022-11-25 15:52:53,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654021050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:52:53,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:52:53,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:52:53,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247455449] [2022-11-25 15:52:53,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:52:53,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:52:53,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:53,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:52:53,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:52:53,381 INFO L87 Difference]: Start difference. First operand 1248 states and 1635 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:52:53,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:53,768 INFO L93 Difference]: Finished difference Result 1566 states and 2123 transitions. [2022-11-25 15:52:53,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:52:53,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 704 [2022-11-25 15:52:53,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:53,777 INFO L225 Difference]: With dead ends: 1566 [2022-11-25 15:52:53,777 INFO L226 Difference]: Without dead ends: 1565 [2022-11-25 15:52:53,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:52:53,779 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 143 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:53,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 351 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:52:53,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2022-11-25 15:52:53,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1491. [2022-11-25 15:52:53,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 1275 states have (on average 1.275294117647059) internal successors, (1626), 1430 states have internal predecessors, (1626), 193 states have call successors, (193), 21 states have call predecessors, (193), 22 states have return successors, (203), 49 states have call predecessors, (203), 193 states have call successors, (203) [2022-11-25 15:52:53,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2022 transitions. [2022-11-25 15:52:53,893 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2022 transitions. Word has length 704 [2022-11-25 15:52:53,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:53,895 INFO L495 AbstractCegarLoop]: Abstraction has 1491 states and 2022 transitions. [2022-11-25 15:52:53,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:52:53,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2022 transitions. [2022-11-25 15:52:53,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2022-11-25 15:52:53,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:53,904 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:53,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-25 15:52:54,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:54,119 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:52:54,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:54,119 INFO L85 PathProgramCache]: Analyzing trace with hash 599849583, now seen corresponding path program 1 times [2022-11-25 15:52:54,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:54,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805934350] [2022-11-25 15:52:54,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:54,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:55,114 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:52:55,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766441115] [2022-11-25 15:52:55,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:55,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:55,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:55,118 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:52:55,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-25 15:53:05,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:53:05,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 14520 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-25 15:53:05,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:53:06,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:53:06,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:53:08,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 0 proven. 381 refuted. 0 times theorem prover too weak. 2741 trivial. 0 not checked. [2022-11-25 15:53:08,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:53:08,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805934350] [2022-11-25 15:53:08,747 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:53:08,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766441115] [2022-11-25 15:53:08,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766441115] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:53:08,748 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:53:08,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 45 [2022-11-25 15:53:08,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859455827] [2022-11-25 15:53:08,748 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:53:08,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-25 15:53:08,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:53:08,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-25 15:53:08,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-11-25 15:53:08,752 INFO L87 Difference]: Start difference. First operand 1491 states and 2022 transitions. Second operand has 46 states, 45 states have (on average 7.177777777777778) internal successors, (323), 46 states have internal predecessors, (323), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-11-25 15:53:12,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:53:12,846 INFO L93 Difference]: Finished difference Result 2207 states and 3189 transitions. [2022-11-25 15:53:12,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-11-25 15:53:12,847 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 7.177777777777778) internal successors, (323), 46 states have internal predecessors, (323), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) Word has length 705 [2022-11-25 15:53:12,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:53:12,861 INFO L225 Difference]: With dead ends: 2207 [2022-11-25 15:53:12,862 INFO L226 Difference]: Without dead ends: 2206 [2022-11-25 15:53:12,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1451 GetRequests, 1364 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2529, Invalid=5303, Unknown=0, NotChecked=0, Total=7832 [2022-11-25 15:53:12,990 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 3136 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 1620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3146 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 3915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1620 IncrementalHoareTripleChecker+Valid, 2295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:53:12,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3146 Valid, 1180 Invalid, 3915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1620 Valid, 2295 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 15:53:12,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-11-25 15:53:13,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2187. [2022-11-25 15:53:13,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 1731 states have (on average 1.341421143847487) internal successors, (2322), 2090 states have internal predecessors, (2322), 409 states have call successors, (409), 45 states have call predecessors, (409), 46 states have return successors, (419), 73 states have call predecessors, (419), 409 states have call successors, (419) [2022-11-25 15:53:13,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3150 transitions. [2022-11-25 15:53:13,198 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3150 transitions. Word has length 705 [2022-11-25 15:53:13,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:53:13,199 INFO L495 AbstractCegarLoop]: Abstraction has 2187 states and 3150 transitions. [2022-11-25 15:53:13,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 7.177777777777778) internal successors, (323), 46 states have internal predecessors, (323), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-11-25 15:53:13,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3150 transitions. [2022-11-25 15:53:13,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 850 [2022-11-25 15:53:13,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:53:13,219 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:53:13,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-25 15:53:13,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:53:13,435 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:53:13,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:53:13,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1567185261, now seen corresponding path program 2 times [2022-11-25 15:53:13,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:53:13,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519744558] [2022-11-25 15:53:13,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:13,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:53:14,313 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:53:14,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [687255575] [2022-11-25 15:53:14,314 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:53:14,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:53:14,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:53:14,315 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:53:14,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-25 15:53:26,105 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:53:26,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:53:26,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 14952 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-25 15:53:26,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:53:28,444 INFO L134 CoverageAnalysis]: Checked inductivity of 5378 backedges. 0 proven. 2817 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:53:28,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:53:31,604 INFO L134 CoverageAnalysis]: Checked inductivity of 5378 backedges. 0 proven. 1893 refuted. 0 times theorem prover too weak. 3485 trivial. 0 not checked. [2022-11-25 15:53:31,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:53:31,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519744558] [2022-11-25 15:53:31,605 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:53:31,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687255575] [2022-11-25 15:53:31,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687255575] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:53:31,605 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:53:31,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 47] total 93 [2022-11-25 15:53:31,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416149095] [2022-11-25 15:53:31,606 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:53:31,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-11-25 15:53:31,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:53:31,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-11-25 15:53:31,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-11-25 15:53:31,613 INFO L87 Difference]: Start difference. First operand 2187 states and 3150 transitions. Second operand has 94 states, 93 states have (on average 5.666666666666667) internal successors, (527), 94 states have internal predecessors, (527), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2022-11-25 15:53:43,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:53:43,251 INFO L93 Difference]: Finished difference Result 3599 states and 5457 transitions. [2022-11-25 15:53:43,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2022-11-25 15:53:43,253 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 5.666666666666667) internal successors, (527), 94 states have internal predecessors, (527), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) Word has length 849 [2022-11-25 15:53:43,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:53:43,273 INFO L225 Difference]: With dead ends: 3599 [2022-11-25 15:53:43,274 INFO L226 Difference]: Without dead ends: 3598 [2022-11-25 15:53:43,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1787 GetRequests, 1604 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7507 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=10809, Invalid=23231, Unknown=0, NotChecked=0, Total=34040 [2022-11-25 15:53:43,285 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 6437 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 5235 mSolverCounterSat, 3415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6447 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 8650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3415 IncrementalHoareTripleChecker+Valid, 5235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:53:43,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6447 Valid, 2150 Invalid, 8650 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3415 Valid, 5235 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-25 15:53:43,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3598 states. [2022-11-25 15:53:43,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3598 to 3579. [2022-11-25 15:53:43,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3579 states, 2643 states have (on average 1.40522133938706) internal successors, (3714), 3410 states have internal predecessors, (3714), 841 states have call successors, (841), 93 states have call predecessors, (841), 94 states have return successors, (851), 121 states have call predecessors, (851), 841 states have call successors, (851) [2022-11-25 15:53:43,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3579 states to 3579 states and 5406 transitions. [2022-11-25 15:53:43,786 INFO L78 Accepts]: Start accepts. Automaton has 3579 states and 5406 transitions. Word has length 849 [2022-11-25 15:53:43,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:53:43,787 INFO L495 AbstractCegarLoop]: Abstraction has 3579 states and 5406 transitions. [2022-11-25 15:53:43,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 5.666666666666667) internal successors, (527), 94 states have internal predecessors, (527), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2022-11-25 15:53:43,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3579 states and 5406 transitions. [2022-11-25 15:53:43,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1138 [2022-11-25 15:53:43,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:53:43,827 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:53:43,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-25 15:53:44,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-25 15:53:44,055 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:53:44,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:53:44,055 INFO L85 PathProgramCache]: Analyzing trace with hash -356456741, now seen corresponding path program 3 times [2022-11-25 15:53:44,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:53:44,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007674778] [2022-11-25 15:53:44,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:44,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:53:45,104 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:53:45,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [570763190] [2022-11-25 15:53:45,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 15:53:45,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:53:45,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:53:45,107 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:53:45,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-25 15:53:54,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 15:53:54,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:53:54,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:53:54,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:53:54,811 INFO L134 CoverageAnalysis]: Checked inductivity of 15074 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 14576 trivial. 0 not checked. [2022-11-25 15:53:54,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:53:54,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:53:54,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007674778] [2022-11-25 15:53:54,812 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:53:54,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570763190] [2022-11-25 15:53:54,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570763190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:53:54,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:53:54,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:53:54,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038456070] [2022-11-25 15:53:54,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:53:54,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:53:54,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:53:54,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:53:54,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:53:54,815 INFO L87 Difference]: Start difference. First operand 3579 states and 5406 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:53:56,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:53:56,048 INFO L93 Difference]: Finished difference Result 6455 states and 9893 transitions. [2022-11-25 15:53:56,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:53:56,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 1137 [2022-11-25 15:53:56,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:53:56,084 INFO L225 Difference]: With dead ends: 6455 [2022-11-25 15:53:56,084 INFO L226 Difference]: Without dead ends: 6454 [2022-11-25 15:53:56,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1145 GetRequests, 1136 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:53:56,088 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 303 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:53:56,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 389 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 15:53:56,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6454 states. [2022-11-25 15:53:56,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6454 to 5990. [2022-11-25 15:53:56,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 4350 states have (on average 1.453103448275862) internal successors, (6321), 5642 states have internal predecessors, (6321), 1456 states have call successors, (1456), 182 states have call predecessors, (1456), 183 states have return successors, (1466), 210 states have call predecessors, (1466), 1456 states have call successors, (1466) [2022-11-25 15:53:56,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 9243 transitions. [2022-11-25 15:53:56,851 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 9243 transitions. Word has length 1137 [2022-11-25 15:53:56,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:53:56,853 INFO L495 AbstractCegarLoop]: Abstraction has 5990 states and 9243 transitions. [2022-11-25 15:53:56,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:53:56,855 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 9243 transitions. [2022-11-25 15:53:56,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1140 [2022-11-25 15:53:56,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:53:56,913 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 44, 44, 44, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:53:56,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-25 15:53:57,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-25 15:53:57,127 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:53:57,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:53:57,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1181803063, now seen corresponding path program 1 times [2022-11-25 15:53:57,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:53:57,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417627516] [2022-11-25 15:53:57,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:57,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:53:58,133 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:53:58,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [93903506] [2022-11-25 15:53:58,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:58,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:53:58,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:53:58,136 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:53:58,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-25 15:54:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:54:11,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 15820 conjuncts, 95 conjunts are in the unsatisfiable core [2022-11-25 15:54:11,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:54:16,999 INFO L134 CoverageAnalysis]: Checked inductivity of 15031 backedges. 0 proven. 12470 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:54:16,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:54:26,982 INFO L134 CoverageAnalysis]: Checked inductivity of 15031 backedges. 0 proven. 8330 refuted. 0 times theorem prover too weak. 6701 trivial. 0 not checked. [2022-11-25 15:54:26,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:54:26,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417627516] [2022-11-25 15:54:26,983 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:54:26,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93903506] [2022-11-25 15:54:26,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93903506] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:54:26,983 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:54:26,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 95] total 189 [2022-11-25 15:54:26,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047058185] [2022-11-25 15:54:26,984 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:54:26,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-11-25 15:54:26,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:54:26,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-11-25 15:54:27,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-11-25 15:54:27,003 INFO L87 Difference]: Start difference. First operand 5990 states and 9243 transitions. Second operand has 190 states, 189 states have (on average 4.968253968253968) internal successors, (939), 190 states have internal predecessors, (939), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) [2022-11-25 15:55:21,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:55:21,916 INFO L93 Difference]: Finished difference Result 11421 states and 18006 transitions. [2022-11-25 15:55:21,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 284 states. [2022-11-25 15:55:21,917 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 4.968253968253968) internal successors, (939), 190 states have internal predecessors, (939), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) Word has length 1139 [2022-11-25 15:55:21,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:55:21,984 INFO L225 Difference]: With dead ends: 11421 [2022-11-25 15:55:21,984 INFO L226 Difference]: Without dead ends: 11420 [2022-11-25 15:55:22,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2463 GetRequests, 2088 SyntacticMatches, 0 SemanticMatches, 375 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32251 ImplicationChecksByTransitivity, 28.5s TimeCoverageRelationStatistics Valid=44649, Invalid=97103, Unknown=0, NotChecked=0, Total=141752 [2022-11-25 15:55:22,016 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 15398 mSDsluCounter, 3576 mSDsCounter, 0 mSdLazyCounter, 11201 mSolverCounterSat, 8768 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15408 SdHoareTripleChecker+Valid, 3726 SdHoareTripleChecker+Invalid, 19969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8768 IncrementalHoareTripleChecker+Valid, 11201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-11-25 15:55:22,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15408 Valid, 3726 Invalid, 19969 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8768 Valid, 11201 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2022-11-25 15:55:22,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11420 states. [2022-11-25 15:55:23,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11420 to 11366. [2022-11-25 15:55:23,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11366 states, 7998 states have (on average 1.4864966241560391) internal successors, (11889), 10682 states have internal predecessors, (11889), 2992 states have call successors, (2992), 374 states have call predecessors, (2992), 375 states have return successors, (3002), 402 states have call predecessors, (3002), 2992 states have call successors, (3002) [2022-11-25 15:55:23,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11366 states to 11366 states and 17883 transitions. [2022-11-25 15:55:23,601 INFO L78 Accepts]: Start accepts. Automaton has 11366 states and 17883 transitions. Word has length 1139 [2022-11-25 15:55:23,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:55:23,603 INFO L495 AbstractCegarLoop]: Abstraction has 11366 states and 17883 transitions. [2022-11-25 15:55:23,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 4.968253968253968) internal successors, (939), 190 states have internal predecessors, (939), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) [2022-11-25 15:55:23,604 INFO L276 IsEmpty]: Start isEmpty. Operand 11366 states and 17883 transitions. [2022-11-25 15:55:23,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1716 [2022-11-25 15:55:23,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:55:23,682 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 94, 94, 92, 92, 92, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:55:23,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-25 15:55:23,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:55:23,911 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:55:23,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:55:23,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1358634695, now seen corresponding path program 2 times [2022-11-25 15:55:23,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:55:23,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912189941] [2022-11-25 15:55:23,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:55:23,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:55:25,547 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:55:25,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [312132668] [2022-11-25 15:55:25,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:55:25,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:55:25,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:55:25,549 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:55:25,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-25 15:55:41,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:55:41,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:55:41,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 17548 conjuncts, 191 conjunts are in the unsatisfiable core [2022-11-25 15:55:41,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:55:57,186 INFO L134 CoverageAnalysis]: Checked inductivity of 55111 backedges. 0 proven. 52550 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:55:57,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:56:35,672 INFO L134 CoverageAnalysis]: Checked inductivity of 55111 backedges. 0 proven. 35066 refuted. 0 times theorem prover too weak. 20045 trivial. 0 not checked. [2022-11-25 15:56:35,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:56:35,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912189941] [2022-11-25 15:56:35,673 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:56:35,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312132668] [2022-11-25 15:56:35,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312132668] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:56:35,674 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:56:35,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [190, 191] total 381 [2022-11-25 15:56:35,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524195466] [2022-11-25 15:56:35,675 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:56:35,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-11-25 15:56:35,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:56:35,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-11-25 15:56:35,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2022-11-25 15:56:35,711 INFO L87 Difference]: Start difference. First operand 11366 states and 17883 transitions. Second operand has 382 states, 381 states have (on average 4.606299212598425) internal successors, (1755), 382 states have internal predecessors, (1755), 190 states have call successors, (192), 96 states have call predecessors, (192), 96 states have return successors, (192), 190 states have call predecessors, (192), 190 states have call successors, (192) [2022-11-25 16:02:52,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:02:52,218 INFO L93 Difference]: Finished difference Result 22173 states and 35334 transitions. [2022-11-25 16:02:52,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 572 states. [2022-11-25 16:02:52,228 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 4.606299212598425) internal successors, (1755), 382 states have internal predecessors, (1755), 190 states have call successors, (192), 96 states have call predecessors, (192), 96 states have return successors, (192), 190 states have call predecessors, (192), 190 states have call successors, (192) Word has length 1715 [2022-11-25 16:02:52,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:02:52,340 INFO L225 Difference]: With dead ends: 22173 [2022-11-25 16:02:52,341 INFO L226 Difference]: Without dead ends: 22172 [2022-11-25 16:02:52,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3807 GetRequests, 3048 SyntacticMatches, 0 SemanticMatches, 759 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133579 ImplicationChecksByTransitivity, 120.4s TimeCoverageRelationStatistics Valid=181449, Invalid=396911, Unknown=0, NotChecked=0, Total=578360 [2022-11-25 16:02:52,412 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 40942 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 26489 mSolverCounterSat, 24461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40952 SdHoareTripleChecker+Valid, 6011 SdHoareTripleChecker+Invalid, 50950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 24461 IncrementalHoareTripleChecker+Valid, 26489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:02:52,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40952 Valid, 6011 Invalid, 50950 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [24461 Valid, 26489 Invalid, 0 Unknown, 0 Unchecked, 31.2s Time] [2022-11-25 16:02:52,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22172 states. [2022-11-25 16:02:54,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22172 to 22118. [2022-11-25 16:02:55,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22118 states, 15294 states have (on average 1.5054923499411534) internal successors, (23025), 20762 states have internal predecessors, (23025), 6064 states have call successors, (6064), 758 states have call predecessors, (6064), 759 states have return successors, (6074), 786 states have call predecessors, (6074), 6064 states have call successors, (6074) [2022-11-25 16:02:55,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22118 states to 22118 states and 35163 transitions. [2022-11-25 16:02:55,093 INFO L78 Accepts]: Start accepts. Automaton has 22118 states and 35163 transitions. Word has length 1715 [2022-11-25 16:02:55,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:02:55,095 INFO L495 AbstractCegarLoop]: Abstraction has 22118 states and 35163 transitions. [2022-11-25 16:02:55,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 4.606299212598425) internal successors, (1755), 382 states have internal predecessors, (1755), 190 states have call successors, (192), 96 states have call predecessors, (192), 96 states have return successors, (192), 190 states have call predecessors, (192), 190 states have call successors, (192) [2022-11-25 16:02:55,096 INFO L276 IsEmpty]: Start isEmpty. Operand 22118 states and 35163 transitions. [2022-11-25 16:02:55,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2868 [2022-11-25 16:02:55,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:02:55,248 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 190, 190, 190, 188, 188, 188, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:02:55,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-11-25 16:02:55,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-25 16:02:55,463 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 16:02:55,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:02:55,463 INFO L85 PathProgramCache]: Analyzing trace with hash 2036209639, now seen corresponding path program 3 times [2022-11-25 16:02:55,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:02:55,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511627838] [2022-11-25 16:02:55,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:02:55,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:02:57,639 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:02:57,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1477175297] [2022-11-25 16:02:57,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 16:02:57,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:02:57,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:02:57,641 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:02:57,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-25 16:03:10,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 16:03:10,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:03:10,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 16:03:10,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:03:10,780 INFO L134 CoverageAnalysis]: Checked inductivity of 218215 backedges. 2083 proven. 0 refuted. 0 times theorem prover too weak. 216132 trivial. 0 not checked. [2022-11-25 16:03:10,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:03:10,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:03:10,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511627838] [2022-11-25 16:03:10,780 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:03:10,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477175297] [2022-11-25 16:03:10,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477175297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:03:10,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:03:10,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:03:10,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625907592] [2022-11-25 16:03:10,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:03:10,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:03:10,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:03:10,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:03:10,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:03:10,785 INFO L87 Difference]: Start difference. First operand 22118 states and 35163 transitions. Second operand has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 16:03:15,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:03:15,280 INFO L93 Difference]: Finished difference Result 45073 states and 70897 transitions. [2022-11-25 16:03:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:03:15,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 2867 [2022-11-25 16:03:15,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:03:15,465 INFO L225 Difference]: With dead ends: 45073 [2022-11-25 16:03:15,466 INFO L226 Difference]: Without dead ends: 45072 [2022-11-25 16:03:15,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2875 GetRequests, 2866 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:03:15,487 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 186 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:03:15,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 401 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:03:15,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45072 states. [2022-11-25 16:03:19,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45072 to 36606. [2022-11-25 16:03:19,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36606 states, 26032 states have (on average 1.5140212046711738) internal successors, (39413), 34119 states have internal predecessors, (39413), 9248 states have call successors, (9248), 1324 states have call predecessors, (9248), 1325 states have return successors, (9258), 1351 states have call predecessors, (9258), 9248 states have call successors, (9258) [2022-11-25 16:03:19,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36606 states to 36606 states and 57919 transitions. [2022-11-25 16:03:19,920 INFO L78 Accepts]: Start accepts. Automaton has 36606 states and 57919 transitions. Word has length 2867 [2022-11-25 16:03:19,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:03:19,923 INFO L495 AbstractCegarLoop]: Abstraction has 36606 states and 57919 transitions. [2022-11-25 16:03:19,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 16:03:19,924 INFO L276 IsEmpty]: Start isEmpty. Operand 36606 states and 57919 transitions. [2022-11-25 16:03:20,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2869 [2022-11-25 16:03:20,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:03:20,577 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 189, 189, 189, 189, 189, 189, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:03:20,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-25 16:03:20,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:03:20,793 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 16:03:20,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:03:20,795 INFO L85 PathProgramCache]: Analyzing trace with hash -886169894, now seen corresponding path program 1 times [2022-11-25 16:03:20,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:03:20,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769774691] [2022-11-25 16:03:20,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:03:20,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:03:22,403 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:03:22,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771003764] [2022-11-25 16:03:22,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:03:22,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:03:22,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:03:22,405 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:03:22,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63042180-7bf3-43c1-9bae-8d42966cd60b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-25 16:03:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:03:41,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 21007 conjuncts, 383 conjunts are in the unsatisfiable core [2022-11-25 16:03:41,123 INFO L286 TraceCheckSpWp]: Computing forward predicates...