./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/sum_array-2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/sum_array-2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0cf9175e436d0e00a51b884dabf87739d3176e3315a908e56fcba99730a10796 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:24:59,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:24:59,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:24:59,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:24:59,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:24:59,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:24:59,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:24:59,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:24:59,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:24:59,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:24:59,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:24:59,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:24:59,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:24:59,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:24:59,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:24:59,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:24:59,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:24:59,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:24:59,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:24:59,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:24:59,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:24:59,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:24:59,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:24:59,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:24:59,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:24:59,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:24:59,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:24:59,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:24:59,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:24:59,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:24:59,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:24:59,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:24:59,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:24:59,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:24:59,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:24:59,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:24:59,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:24:59,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:24:59,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:24:59,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:24:59,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:24:59,481 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 14:24:59,495 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:24:59,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:24:59,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:24:59,496 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:24:59,496 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:24:59,496 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:24:59,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:24:59,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:24:59,497 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:24:59,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:24:59,497 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:24:59,502 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:24:59,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:24:59,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:24:59,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:24:59,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:24:59,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:24:59,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:24:59,504 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 14:24:59,504 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:24:59,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:24:59,505 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:24:59,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:24:59,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:24:59,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:24:59,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:24:59,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:24:59,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:24:59,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:24:59,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:24:59,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:24:59,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:24:59,507 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:24:59,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:24:59,507 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:24:59,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:24:59,507 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:24:59,507 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_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cf9175e436d0e00a51b884dabf87739d3176e3315a908e56fcba99730a10796 [2022-12-13 14:24:59,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:24:59,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:24:59,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:24:59,692 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:24:59,692 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:24:59,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loops/sum_array-2-2.i [2022-12-13 14:25:02,277 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:25:02,418 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:25:02,418 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/sv-benchmarks/c/loops/sum_array-2-2.i [2022-12-13 14:25:02,423 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/data/ffdc3240e/9320759679ae45bd8d5d04971a922a06/FLAGceef77bd4 [2022-12-13 14:25:02,848 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/data/ffdc3240e/9320759679ae45bd8d5d04971a922a06 [2022-12-13 14:25:02,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:25:02,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:25:02,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:25:02,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:25:02,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:25:02,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:25:02" (1/1) ... [2022-12-13 14:25:02,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ccc440f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:25:02, skipping insertion in model container [2022-12-13 14:25:02,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:25:02" (1/1) ... [2022-12-13 14:25:02,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:25:02,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:25:02,996 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_0c182ac8-ada7-4bce-8a81-bb388cf631d4/sv-benchmarks/c/loops/sum_array-2-2.i[940,953] [2022-12-13 14:25:03,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:25:03,020 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:25:03,032 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_0c182ac8-ada7-4bce-8a81-bb388cf631d4/sv-benchmarks/c/loops/sum_array-2-2.i[940,953] [2022-12-13 14:25:03,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:25:03,054 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:25:03,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:25:03 WrapperNode [2022-12-13 14:25:03,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:25:03,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:25:03,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:25:03,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:25:03,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:25:03" (1/1) ... [2022-12-13 14:25:03,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:25:03" (1/1) ... [2022-12-13 14:25:03,091 INFO L138 Inliner]: procedures = 18, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 132 [2022-12-13 14:25:03,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:25:03,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:25:03,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:25:03,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:25:03,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:25:03" (1/1) ... [2022-12-13 14:25:03,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:25:03" (1/1) ... [2022-12-13 14:25:03,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:25:03" (1/1) ... [2022-12-13 14:25:03,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:25:03" (1/1) ... [2022-12-13 14:25:03,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:25:03" (1/1) ... [2022-12-13 14:25:03,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:25:03" (1/1) ... [2022-12-13 14:25:03,114 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:25:03" (1/1) ... [2022-12-13 14:25:03,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:25:03" (1/1) ... [2022-12-13 14:25:03,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:25:03,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:25:03,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:25:03,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:25:03,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:25:03" (1/1) ... [2022-12-13 14:25:03,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:25:03,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:25:03,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:25:03,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:25:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:25:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:25:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:25:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:25:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:25:03,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:25:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 14:25:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:25:03,239 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:25:03,241 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:25:03,394 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:25:03,399 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:25:03,399 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 14:25:03,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:25:03 BoogieIcfgContainer [2022-12-13 14:25:03,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:25:03,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:25:03,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:25:03,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:25:03,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:25:02" (1/3) ... [2022-12-13 14:25:03,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4caadd39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:25:03, skipping insertion in model container [2022-12-13 14:25:03,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:25:03" (2/3) ... [2022-12-13 14:25:03,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4caadd39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:25:03, skipping insertion in model container [2022-12-13 14:25:03,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:25:03" (3/3) ... [2022-12-13 14:25:03,407 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array-2-2.i [2022-12-13 14:25:03,422 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:25:03,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 14:25:03,459 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:25:03,464 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;@221a7231, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:25:03,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 14:25:03,467 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 32 states have internal predecessors, (46), 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) [2022-12-13 14:25:03,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 14:25:03,471 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:25:03,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:25:03,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:25:03,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:25:03,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1313663593, now seen corresponding path program 1 times [2022-12-13 14:25:03,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:25:03,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442051906] [2022-12-13 14:25:03,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:25:03,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:25:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:25:03,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:25:03,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:25:03,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442051906] [2022-12-13 14:25:03,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442051906] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:25:03,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:25:03,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:25:03,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352844987] [2022-12-13 14:25:03,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:25:03,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:25:03,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:25:03,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:25:03,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:25:03,866 INFO L87 Difference]: Start difference. First operand has 33 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 32 states have internal predecessors, (46), 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) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-12-13 14:25:03,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:25:03,986 INFO L93 Difference]: Finished difference Result 95 states and 133 transitions. [2022-12-13 14:25:03,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:25:03,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 9 [2022-12-13 14:25:03,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:25:03,994 INFO L225 Difference]: With dead ends: 95 [2022-12-13 14:25:03,994 INFO L226 Difference]: Without dead ends: 50 [2022-12-13 14:25:03,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:25:03,999 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 39 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:25:03,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 94 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:25:04,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-12-13 14:25:04,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 31. [2022-12-13 14:25:04,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 30 states have internal predecessors, (34), 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) [2022-12-13 14:25:04,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2022-12-13 14:25:04,022 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 9 [2022-12-13 14:25:04,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:25:04,023 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2022-12-13 14:25:04,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-12-13 14:25:04,023 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2022-12-13 14:25:04,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 14:25:04,024 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:25:04,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:25:04,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:25:04,024 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:25:04,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:25:04,025 INFO L85 PathProgramCache]: Analyzing trace with hash -322250057, now seen corresponding path program 1 times [2022-12-13 14:25:04,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:25:04,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145561677] [2022-12-13 14:25:04,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:25:04,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:25:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:25:05,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:25:05,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:25:05,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145561677] [2022-12-13 14:25:05,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145561677] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:25:05,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159678270] [2022-12-13 14:25:05,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:25:05,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:25:05,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:25:05,441 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:25:05,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 14:25:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:25:05,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 14:25:05,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:25:05,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-13 14:25:05,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 45 [2022-12-13 14:25:05,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-12-13 14:25:05,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 57 [2022-12-13 14:25:05,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-12-13 14:25:05,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2022-12-13 14:25:05,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:25:05,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:25:07,238 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:25:07,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 117 [2022-12-13 14:25:07,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2022-12-13 14:25:07,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 64 [2022-12-13 14:25:07,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-12-13 14:25:07,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2022-12-13 14:25:07,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-12-13 14:25:07,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:25:07,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159678270] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:25:07,533 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:25:07,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 30 [2022-12-13 14:25:07,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958953907] [2022-12-13 14:25:07,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:25:07,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-13 14:25:07,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:25:07,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-13 14:25:07,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=770, Unknown=0, NotChecked=0, Total=930 [2022-12-13 14:25:07,537 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 31 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 31 states have internal predecessors, (47), 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) [2022-12-13 14:25:10,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:25:10,205 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2022-12-13 14:25:10,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-13 14:25:10,206 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 31 states have internal predecessors, (47), 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 17 [2022-12-13 14:25:10,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:25:10,206 INFO L225 Difference]: With dead ends: 102 [2022-12-13 14:25:10,206 INFO L226 Difference]: Without dead ends: 101 [2022-12-13 14:25:10,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 984 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=812, Invalid=3220, Unknown=0, NotChecked=0, Total=4032 [2022-12-13 14:25:10,208 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 204 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:25:10,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 221 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:25:10,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-12-13 14:25:10,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 48. [2022-12-13 14:25:10,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 47 states have internal predecessors, (54), 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) [2022-12-13 14:25:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2022-12-13 14:25:10,215 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2022-12-13 14:25:10,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:25:10,215 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2022-12-13 14:25:10,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 31 states have internal predecessors, (47), 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) [2022-12-13 14:25:10,215 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2022-12-13 14:25:10,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 14:25:10,215 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:25:10,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:25:10,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 14:25:10,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:25:10,417 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:25:10,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:25:10,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1399817078, now seen corresponding path program 1 times [2022-12-13 14:25:10,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:25:10,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911864241] [2022-12-13 14:25:10,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:25:10,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:25:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:25:11,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:25:11,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:25:11,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911864241] [2022-12-13 14:25:11,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911864241] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:25:11,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274865584] [2022-12-13 14:25:11,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:25:11,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:25:11,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:25:11,227 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:25:11,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 14:25:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:25:11,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 14:25:11,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:25:11,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-13 14:25:11,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:25:11,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-13 14:25:11,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-12-13 14:25:11,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:25:11,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:25:11,963 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:25:11,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 113 [2022-12-13 14:25:12,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-12-13 14:25:12,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-12-13 14:25:12,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2022-12-13 14:25:12,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 142 [2022-12-13 14:25:12,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2022-12-13 14:25:12,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:25:12,264 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-13 14:25:12,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2022-12-13 14:25:12,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:25:12,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274865584] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:25:12,308 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:25:12,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2022-12-13 14:25:12,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187469174] [2022-12-13 14:25:12,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:25:12,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-13 14:25:12,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:25:12,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-13 14:25:12,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2022-12-13 14:25:12,309 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 26 states, 25 states have (on average 2.0) internal successors, (50), 26 states have internal predecessors, (50), 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) [2022-12-13 14:25:13,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:25:13,715 INFO L93 Difference]: Finished difference Result 99 states and 109 transitions. [2022-12-13 14:25:13,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-13 14:25:13,716 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.0) internal successors, (50), 26 states have internal predecessors, (50), 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 18 [2022-12-13 14:25:13,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:25:13,716 INFO L225 Difference]: With dead ends: 99 [2022-12-13 14:25:13,716 INFO L226 Difference]: Without dead ends: 98 [2022-12-13 14:25:13,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=467, Invalid=1885, Unknown=0, NotChecked=0, Total=2352 [2022-12-13 14:25:13,718 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 151 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:25:13,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 291 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:25:13,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-13 14:25:13,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 49. [2022-12-13 14:25:13,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 48 states have internal predecessors, (55), 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) [2022-12-13 14:25:13,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2022-12-13 14:25:13,724 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 18 [2022-12-13 14:25:13,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:25:13,724 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2022-12-13 14:25:13,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.0) internal successors, (50), 26 states have internal predecessors, (50), 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) [2022-12-13 14:25:13,725 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2022-12-13 14:25:13,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 14:25:13,725 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:25:13,725 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:25:13,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 14:25:13,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-13 14:25:13,927 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:25:13,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:25:13,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2112995717, now seen corresponding path program 1 times [2022-12-13 14:25:13,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:25:13,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787223667] [2022-12-13 14:25:13,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:25:13,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:25:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:25:14,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 14:25:14,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:25:14,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787223667] [2022-12-13 14:25:14,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787223667] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:25:14,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102285989] [2022-12-13 14:25:14,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:25:14,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:25:14,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:25:14,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:25:14,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 14:25:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:25:14,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 14:25:14,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:25:14,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 14:25:14,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:25:26,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 14:25:26,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102285989] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:25:26,507 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:25:26,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-12-13 14:25:26,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940237127] [2022-12-13 14:25:26,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:25:26,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 14:25:26,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:25:26,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 14:25:26,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=73, Unknown=5, NotChecked=0, Total=110 [2022-12-13 14:25:26,509 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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) [2022-12-13 14:25:26,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:25:26,746 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2022-12-13 14:25:26,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:25:26,747 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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 21 [2022-12-13 14:25:26,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:25:26,747 INFO L225 Difference]: With dead ends: 117 [2022-12-13 14:25:26,747 INFO L226 Difference]: Without dead ends: 90 [2022-12-13 14:25:26,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=32, Invalid=73, Unknown=5, NotChecked=0, Total=110 [2022-12-13 14:25:26,748 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 104 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:25:26,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 147 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 14:25:26,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-12-13 14:25:26,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 59. [2022-12-13 14:25:26,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 58 states have internal predecessors, (68), 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) [2022-12-13 14:25:26,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2022-12-13 14:25:26,757 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 21 [2022-12-13 14:25:26,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:25:26,757 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2022-12-13 14:25:26,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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) [2022-12-13 14:25:26,757 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2022-12-13 14:25:26,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 14:25:26,758 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:25:26,758 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] [2022-12-13 14:25:26,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 14:25:26,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:25:26,959 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:25:26,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:25:26,960 INFO L85 PathProgramCache]: Analyzing trace with hash 930598631, now seen corresponding path program 1 times [2022-12-13 14:25:26,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:25:26,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389212617] [2022-12-13 14:25:26,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:25:26,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:25:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:25:28,240 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:25:28,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:25:28,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389212617] [2022-12-13 14:25:28,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389212617] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:25:28,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426225382] [2022-12-13 14:25:28,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:25:28,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:25:28,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:25:28,242 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:25:28,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 14:25:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:25:28,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-13 14:25:28,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:25:28,300 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-13 14:25:28,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2022-12-13 14:25:28,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-12-13 14:25:28,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 57 [2022-12-13 14:25:28,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-12-13 14:25:28,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-12-13 14:25:28,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2022-12-13 14:25:28,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:25:28,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:25:28,760 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_141 (Array Int Int))) (< 0 (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_141))) (+ 2147483649 (select (select .cse0 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|) (select (select .cse0 |c_ULTIMATE.start_main_~#B~0#1.base|) |c_ULTIMATE.start_main_~#B~0#1.offset|))))) is different from false [2022-12-13 14:25:28,923 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base|)) (.cse3 (* .cse5 4)) (.cse0 (<= .cse5 2147483647))) (and (or (not .cse0) (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_141 (Array Int Int)) (v_ArrVal_139 Int)) (or (< 0 (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse2 (+ |ULTIMATE.start_main_~#B~0#1.offset| .cse3) v_ArrVal_139)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_141))) (+ 2147483649 (select (select .cse1 |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset|) (select (select .cse1 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|)))) (< (+ v_ArrVal_139 1000000) 0)))) (or (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_141 (Array Int Int)) (v_ArrVal_139 Int)) (or (< (+ v_ArrVal_139 1000000) 0) (< 0 (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse2 (+ (- 17179869184) |ULTIMATE.start_main_~#B~0#1.offset| .cse3) v_ArrVal_139)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_141))) (+ 2147483649 (select (select .cse4 |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset|) (select (select .cse4 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|)))))) .cse0)))) is different from false [2022-12-13 14:25:29,187 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:25:29,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 517 treesize of output 513 [2022-12-13 14:25:29,207 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:25:29,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 464 treesize of output 424 [2022-12-13 14:25:39,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6921 treesize of output 6645 [2022-12-13 14:25:39,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6704 treesize of output 6700 [2022-12-13 14:25:40,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2022-12-13 14:25:40,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-12-13 14:25:40,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2022-12-13 14:25:40,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:25:40,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2022-12-13 14:25:40,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:25:40,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:25:40,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-12-13 14:25:40,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-12-13 14:25:40,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6888 treesize of output 6610 [2022-12-13 14:25:42,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1480 treesize of output 1348 [2022-12-13 14:25:43,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 125 [2022-12-13 14:25:43,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 93 [2022-12-13 14:25:43,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:25:43,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:25:43,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:25:43,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 64 [2022-12-13 14:25:43,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-12-13 14:25:43,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426225382] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:25:43,686 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:25:43,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 34 [2022-12-13 14:25:43,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754063743] [2022-12-13 14:25:43,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:25:43,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-13 14:25:43,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:25:43,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-13 14:25:43,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=879, Unknown=13, NotChecked=126, Total=1190 [2022-12-13 14:25:43,689 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand has 35 states, 34 states have (on average 1.911764705882353) internal successors, (65), 35 states have internal predecessors, (65), 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) [2022-12-13 14:25:44,046 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_141 (Array Int Int)) (v_ArrVal_139 Int)) (or (< 0 (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset| v_ArrVal_139)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_141))) (+ 2147483649 (select (select .cse5 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|) (select (select .cse5 |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset|)))) (< (+ v_ArrVal_139 1000000) 0))))) (and (or (let ((.cse3 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~#A~0#1.base|)) (.cse2 (* .cse3 4)) (.cse0 (<= .cse3 2147483647))) (and (or (not .cse0) (< (+ 1000000 (select .cse1 (+ |c_ULTIMATE.start_main_~#A~0#1.offset| .cse2))) 0)) (or (< (+ (select .cse1 (+ (- 17179869184) |c_ULTIMATE.start_main_~#A~0#1.offset| .cse2)) 1000000) 0) .cse0)))) .cse4) .cse4 (or (not (<= 0 (+ 1000000 |c_ULTIMATE.start_main_#t~mem5#1|))) .cse4))) is different from false [2022-12-13 14:25:44,411 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse9 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base|)) (.cse3 (<= .cse9 2147483647))) (let ((.cse0 (not .cse3)) (.cse2 (* .cse9 4)) (.cse4 (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_141 (Array Int Int)) (v_ArrVal_139 Int)) (or (< 0 (let ((.cse8 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse6 |ULTIMATE.start_main_~#B~0#1.offset| v_ArrVal_139)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_141))) (+ 2147483649 (select (select .cse8 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|) (select (select .cse8 |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset|)))) (< (+ v_ArrVal_139 1000000) 0))))) (and (or (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~#A~0#1.base|))) (and (or .cse0 (< (+ 1000000 (select .cse1 (+ |c_ULTIMATE.start_main_~#A~0#1.offset| .cse2))) 0)) (or (< (+ (select .cse1 (+ (- 17179869184) |c_ULTIMATE.start_main_~#A~0#1.offset| .cse2)) 1000000) 0) .cse3))) .cse4) (or .cse0 (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_141 (Array Int Int)) (v_ArrVal_139 Int)) (or (< 0 (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse6 (+ |ULTIMATE.start_main_~#B~0#1.offset| .cse2) v_ArrVal_139)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_141))) (+ 2147483649 (select (select .cse5 |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset|) (select (select .cse5 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|)))) (< (+ v_ArrVal_139 1000000) 0)))) (or (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_141 (Array Int Int)) (v_ArrVal_139 Int)) (or (< (+ v_ArrVal_139 1000000) 0) (< 0 (let ((.cse7 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse6 (+ (- 17179869184) |ULTIMATE.start_main_~#B~0#1.offset| .cse2) v_ArrVal_139)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_141))) (+ 2147483649 (select (select .cse7 |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset|) (select (select .cse7 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|)))))) .cse3) .cse4 (or (not (<= 0 (+ 1000000 |c_ULTIMATE.start_main_#t~mem5#1|))) .cse4))))) is different from false [2022-12-13 14:25:52,965 WARN L233 SmtUtils]: Spent 8.19s on a formula simplification. DAG size of input: 57 DAG size of output: 34 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 14:25:53,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:25:53,557 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2022-12-13 14:25:53,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-13 14:25:53,557 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 1.911764705882353) internal successors, (65), 35 states have internal predecessors, (65), 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 23 [2022-12-13 14:25:53,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:25:53,558 INFO L225 Difference]: With dead ends: 92 [2022-12-13 14:25:53,558 INFO L226 Difference]: Without dead ends: 91 [2022-12-13 14:25:53,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 24 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=380, Invalid=1760, Unknown=38, NotChecked=372, Total=2550 [2022-12-13 14:25:53,559 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 72 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 32 mSolverCounterUnsat, 54 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 54 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:25:53,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 209 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 427 Invalid, 54 Unknown, 68 Unchecked, 0.7s Time] [2022-12-13 14:25:53,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-12-13 14:25:53,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 78. [2022-12-13 14:25:53,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.2027027027027026) internal successors, (89), 77 states have internal predecessors, (89), 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) [2022-12-13 14:25:53,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2022-12-13 14:25:53,568 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 23 [2022-12-13 14:25:53,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:25:53,568 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2022-12-13 14:25:53,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 1.911764705882353) internal successors, (65), 35 states have internal predecessors, (65), 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) [2022-12-13 14:25:53,568 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2022-12-13 14:25:53,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-13 14:25:53,568 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:25:53,569 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] [2022-12-13 14:25:53,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 14:25:53,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:25:53,769 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:25:53,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:25:53,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1216213396, now seen corresponding path program 1 times [2022-12-13 14:25:53,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:25:53,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76392197] [2022-12-13 14:25:53,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:25:53,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:25:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:25:54,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 14:25:54,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:25:54,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76392197] [2022-12-13 14:25:54,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76392197] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:25:54,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359283887] [2022-12-13 14:25:54,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:25:54,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:25:54,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:25:54,572 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:25:54,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 14:25:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:25:54,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 14:25:54,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:25:54,629 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-13 14:25:54,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2022-12-13 14:25:54,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 14:25:54,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-13 14:25:54,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-13 14:25:54,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-12-13 14:25:55,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:25:55,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:25:55,103 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_180 (Array Int Int))) (< (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_180))) (+ (select (select .cse0 |c_ULTIMATE.start_main_~#B~0#1.base|) |c_ULTIMATE.start_main_~#B~0#1.offset|) (select (select .cse0 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|))) 2147483648)) is different from false [2022-12-13 14:25:55,206 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base|)) (.cse3 (* .cse5 4)) (.cse0 (<= .cse5 2147483647))) (and (or (not .cse0) (forall ((v_ArrVal_180 (Array Int Int)) (v_ArrVal_178 Int) (|ULTIMATE.start_main_~#B~0#1.offset| Int)) (or (< (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse2 (+ |ULTIMATE.start_main_~#B~0#1.offset| .cse3) v_ArrVal_178)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_180))) (+ (select (select .cse1 |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset|) (select (select .cse1 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|))) 2147483648) (< 1000000 v_ArrVal_178)))) (or (forall ((v_ArrVal_180 (Array Int Int)) (v_ArrVal_178 Int) (|ULTIMATE.start_main_~#B~0#1.offset| Int)) (or (< 1000000 v_ArrVal_178) (< (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse2 (+ (- 17179869184) |ULTIMATE.start_main_~#B~0#1.offset| .cse3) v_ArrVal_178)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_180))) (+ (select (select .cse4 |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset|) (select (select .cse4 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|))) 2147483648))) .cse0)))) is different from false [2022-12-13 14:25:55,363 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:25:55,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 339 treesize of output 339 [2022-12-13 14:25:55,385 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:25:55,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 290 treesize of output 266 [2022-12-13 14:25:59,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1641 treesize of output 1571 [2022-12-13 14:25:59,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 291 treesize of output 283 [2022-12-13 14:26:00,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 142 [2022-12-13 14:26:00,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:26:00,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:26:00,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2509 treesize of output 2377 [2022-12-13 14:26:01,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2369 treesize of output 2243 [2022-12-13 14:26:01,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2287 treesize of output 2283 [2022-12-13 14:26:01,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:26:01,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:26:01,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:26:01,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:26:01,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:26:02,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:26:02,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:26:02,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 14:26:02,058 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-13 14:26:02,063 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-13 14:26:02,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 14:26:02,077 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-13 14:26:02,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 14:26:02,085 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-13 14:26:02,092 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-13 14:26:02,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 14:26:02,098 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-13 14:26:02,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-12-13 14:26:02,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359283887] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:26:02,322 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:26:02,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 10] total 24 [2022-12-13 14:26:02,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945853915] [2022-12-13 14:26:02,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:26:02,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-13 14:26:02,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:26:02,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-13 14:26:02,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=426, Unknown=7, NotChecked=86, Total=600 [2022-12-13 14:26:02,324 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand has 25 states, 24 states have (on average 2.75) internal successors, (66), 25 states have internal predecessors, (66), 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) [2022-12-13 14:26:18,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:26:18,041 INFO L93 Difference]: Finished difference Result 98 states and 107 transitions. [2022-12-13 14:26:18,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 14:26:18,041 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.75) internal successors, (66), 25 states have internal predecessors, (66), 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 24 [2022-12-13 14:26:18,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:26:18,042 INFO L225 Difference]: With dead ends: 98 [2022-12-13 14:26:18,042 INFO L226 Difference]: Without dead ends: 71 [2022-12-13 14:26:18,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 33 SyntacticMatches, 9 SemanticMatches, 45 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=407, Invalid=1573, Unknown=8, NotChecked=174, Total=2162 [2022-12-13 14:26:18,043 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 214 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 47 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 112 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:26:18,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 134 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 292 Invalid, 2 Unknown, 112 Unchecked, 0.3s Time] [2022-12-13 14:26:18,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-12-13 14:26:18,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 65. [2022-12-13 14:26:18,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 61 states have (on average 1.2131147540983607) internal successors, (74), 64 states have internal predecessors, (74), 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) [2022-12-13 14:26:18,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 74 transitions. [2022-12-13 14:26:18,051 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 74 transitions. Word has length 24 [2022-12-13 14:26:18,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:26:18,051 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 74 transitions. [2022-12-13 14:26:18,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.75) internal successors, (66), 25 states have internal predecessors, (66), 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) [2022-12-13 14:26:18,051 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 74 transitions. [2022-12-13 14:26:18,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 14:26:18,052 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:26:18,052 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:26:18,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 14:26:18,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 14:26:18,254 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:26:18,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:26:18,255 INFO L85 PathProgramCache]: Analyzing trace with hash 747240709, now seen corresponding path program 2 times [2022-12-13 14:26:18,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:26:18,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128329970] [2022-12-13 14:26:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:26:18,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:26:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:26:19,814 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:26:19,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:26:19,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128329970] [2022-12-13 14:26:19,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128329970] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:26:19,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684923111] [2022-12-13 14:26:19,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:26:19,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:26:19,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:26:19,815 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:26:19,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 14:26:19,878 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 14:26:19,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:26:19,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 41 conjunts are in the unsatisfiable core [2022-12-13 14:26:19,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:26:19,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-13 14:26:19,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 45 [2022-12-13 14:26:19,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-12-13 14:26:20,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2022-12-13 14:26:20,071 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-13 14:26:20,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 97 [2022-12-13 14:26:20,077 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 14:26:20,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2022-12-13 14:26:20,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-12-13 14:26:20,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 73 [2022-12-13 14:26:20,585 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-13 14:26:20,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 97 [2022-12-13 14:26:20,619 INFO L321 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2022-12-13 14:26:20,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 26 [2022-12-13 14:26:20,975 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:26:20,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 27 [2022-12-13 14:26:21,012 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:26:21,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:26:32,874 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:26:32,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 160 [2022-12-13 14:26:33,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 217 [2022-12-13 14:26:33,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 682 treesize of output 678 [2022-12-13 14:26:33,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 86 [2022-12-13 14:26:33,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 148 [2022-12-13 14:26:33,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2022-12-13 14:26:33,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:26:33,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 14:26:33,503 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-13 14:26:33,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 186 [2022-12-13 14:26:33,668 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:26:33,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684923111] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:26:33,668 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:26:33,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 19] total 51 [2022-12-13 14:26:33,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807440524] [2022-12-13 14:26:33,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:26:33,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-12-13 14:26:33,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:26:33,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-12-13 14:26:33,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=443, Invalid=2206, Unknown=3, NotChecked=0, Total=2652 [2022-12-13 14:26:33,669 INFO L87 Difference]: Start difference. First operand 65 states and 74 transitions. Second operand has 52 states, 51 states have (on average 1.392156862745098) internal successors, (71), 52 states have internal predecessors, (71), 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) [2022-12-13 14:27:00,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:27:00,484 INFO L93 Difference]: Finished difference Result 122 states and 133 transitions. [2022-12-13 14:27:00,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-12-13 14:27:00,486 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 1.392156862745098) internal successors, (71), 52 states have internal predecessors, (71), 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 25 [2022-12-13 14:27:00,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:27:00,486 INFO L225 Difference]: With dead ends: 122 [2022-12-13 14:27:00,486 INFO L226 Difference]: Without dead ends: 121 [2022-12-13 14:27:00,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3407 ImplicationChecksByTransitivity, 35.0s TimeCoverageRelationStatistics Valid=2058, Invalid=9495, Unknown=3, NotChecked=0, Total=11556 [2022-12-13 14:27:00,488 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 249 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:27:00,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 276 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-13 14:27:00,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-12-13 14:27:00,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 76. [2022-12-13 14:27:00,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 75 states have internal predecessors, (87), 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) [2022-12-13 14:27:00,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2022-12-13 14:27:00,500 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 25 [2022-12-13 14:27:00,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:27:00,501 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2022-12-13 14:27:00,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 1.392156862745098) internal successors, (71), 52 states have internal predecessors, (71), 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) [2022-12-13 14:27:00,501 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2022-12-13 14:27:00,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-13 14:27:00,501 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:27:00,501 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:27:00,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 14:27:00,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 14:27:00,703 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:27:00,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:27:00,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1689625596, now seen corresponding path program 2 times [2022-12-13 14:27:00,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:27:00,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840297824] [2022-12-13 14:27:00,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:27:00,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:27:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:27:01,940 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:27:01,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:27:01,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840297824] [2022-12-13 14:27:01,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840297824] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:27:01,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112112706] [2022-12-13 14:27:01,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:27:01,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:27:01,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:27:01,942 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:27:01,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 14:27:02,009 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 14:27:02,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:27:02,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 38 conjunts are in the unsatisfiable core [2022-12-13 14:27:02,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:27:02,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-13 14:27:02,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 45 [2022-12-13 14:27:02,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-12-13 14:27:02,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 14:27:02,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2022-12-13 14:27:02,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-12-13 14:27:02,576 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:27:02,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 42 [2022-12-13 14:27:02,813 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:27:02,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 19 [2022-12-13 14:27:02,849 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:27:02,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:27:17,004 WARN L233 SmtUtils]: Spent 8.07s on a formula simplification. DAG size of input: 84 DAG size of output: 72 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 14:27:18,844 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:27:18,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 156 [2022-12-13 14:27:19,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 178 [2022-12-13 14:27:19,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 307 treesize of output 299 [2022-12-13 14:27:19,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94506 treesize of output 93994 [2022-12-13 14:32:38,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-12-13 14:32:38,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1426 treesize of output 1410 [2022-12-13 14:32:39,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 153 [2022-12-13 14:32:39,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-12-13 14:32:39,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:32:39,118 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-13 14:32:39,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:32:39,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 14:32:39,128 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-12-13 14:32:39,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 178 [2022-12-13 14:32:39,253 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:32:39,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112112706] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:32:39,253 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:32:39,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 15] total 41 [2022-12-13 14:32:39,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340714208] [2022-12-13 14:32:39,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:32:39,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-12-13 14:32:39,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:32:39,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-12-13 14:32:39,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=1439, Unknown=1, NotChecked=0, Total=1722 [2022-12-13 14:32:39,255 INFO L87 Difference]: Start difference. First operand 76 states and 87 transitions. Second operand has 42 states, 41 states have (on average 1.8048780487804879) internal successors, (74), 42 states have internal predecessors, (74), 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) [2022-12-13 14:33:05,696 WARN L233 SmtUtils]: Spent 8.10s on a formula simplification. DAG size of input: 136 DAG size of output: 125 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 14:33:08,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:33:08,901 INFO L93 Difference]: Finished difference Result 125 states and 138 transitions. [2022-12-13 14:33:08,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-12-13 14:33:08,902 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 1.8048780487804879) internal successors, (74), 42 states have internal predecessors, (74), 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 26 [2022-12-13 14:33:08,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:33:08,902 INFO L225 Difference]: With dead ends: 125 [2022-12-13 14:33:08,902 INFO L226 Difference]: Without dead ends: 124 [2022-12-13 14:33:08,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2232 ImplicationChecksByTransitivity, 42.7s TimeCoverageRelationStatistics Valid=1475, Invalid=6356, Unknown=1, NotChecked=0, Total=7832 [2022-12-13 14:33:08,904 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 228 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-13 14:33:08,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 314 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-13 14:33:08,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-12-13 14:33:08,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 77. [2022-12-13 14:33:08,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 73 states have (on average 1.2054794520547945) internal successors, (88), 76 states have internal predecessors, (88), 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) [2022-12-13 14:33:08,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 88 transitions. [2022-12-13 14:33:08,921 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 88 transitions. Word has length 26 [2022-12-13 14:33:08,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:33:08,921 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 88 transitions. [2022-12-13 14:33:08,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 1.8048780487804879) internal successors, (74), 42 states have internal predecessors, (74), 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) [2022-12-13 14:33:08,922 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 88 transitions. [2022-12-13 14:33:08,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-13 14:33:08,922 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:33:08,922 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:33:08,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 14:33:09,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:33:09,124 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:33:09,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:33:09,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1380480567, now seen corresponding path program 2 times [2022-12-13 14:33:09,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:33:09,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966798333] [2022-12-13 14:33:09,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:09,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:33:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:11,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:33:11,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966798333] [2022-12-13 14:33:11,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966798333] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:33:11,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398402602] [2022-12-13 14:33:11,590 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:33:11,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:33:11,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:33:11,591 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:33:11,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 14:33:11,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 14:33:11,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:33:11,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 36 conjunts are in the unsatisfiable core [2022-12-13 14:33:11,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:33:11,656 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-13 14:33:11,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2022-12-13 14:33:11,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 45 [2022-12-13 14:33:11,754 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 14:33:11,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-12-13 14:33:11,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-13 14:33:12,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-12-13 14:33:12,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-12-13 14:33:12,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2022-12-13 14:33:12,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 17 [2022-12-13 14:33:12,467 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:12,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:33:12,763 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (or (not (< .cse0 (mod |c_ULTIMATE.start_main_~M~0#1| 4294967296))) (let ((.cse1 (<= .cse0 2147483647)) (.cse3 (* .cse0 4))) (and (or (not .cse1) (forall ((v_ArrVal_315 (Array Int Int))) (< 0 (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_315))) (+ 2147483649 (select (select .cse2 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |c_ULTIMATE.start_main_~#B~0#1.offset| .cse3)) (select (select .cse2 |c_ULTIMATE.start_main_~#A~0#1.base|) (+ |c_ULTIMATE.start_main_~#A~0#1.offset| .cse3))))))) (or .cse1 (forall ((v_ArrVal_315 (Array Int Int))) (< 0 (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_315))) (+ 2147483649 (select (select .cse4 |c_ULTIMATE.start_main_~#A~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#A~0#1.offset| .cse3)) (select (select .cse4 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |c_ULTIMATE.start_main_~#B~0#1.offset| (- 17179869184) .cse3))))))))))) is different from false [2022-12-13 14:33:13,454 WARN L837 $PredicateComparison]: unable to prove that (or (not (< 1 (mod |c_ULTIMATE.start_main_~M~0#1| 4294967296))) (let ((.cse6 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse4 (<= .cse6 2147483647)) (.cse1 (+ |c_ULTIMATE.start_main_~#A~0#1.offset| 4)) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base|)) (.cse3 (* .cse6 4))) (and (or (forall ((v_ArrVal_315 (Array Int Int)) (|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_314 Int)) (or (< 0 (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse2 (+ (- 17179869184) |ULTIMATE.start_main_~#B~0#1.offset| .cse3) v_ArrVal_314)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_315))) (+ 2147483649 (select (select .cse0 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| 4)) (select (select .cse0 |c_ULTIMATE.start_main_~#A~0#1.base|) .cse1)))) (< (+ v_ArrVal_314 1000000) 0))) .cse4) (or (not .cse4) (forall ((v_ArrVal_315 (Array Int Int)) (|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_314 Int)) (or (< (+ v_ArrVal_314 1000000) 0) (< 0 (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse2 (+ |ULTIMATE.start_main_~#B~0#1.offset| .cse3) v_ArrVal_314)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_315))) (+ 2147483649 (select (select .cse5 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| 4)) (select (select .cse5 |c_ULTIMATE.start_main_~#A~0#1.base|) .cse1))))))))))) is different from false [2022-12-13 14:33:13,524 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:33:13,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 45 [2022-12-13 14:33:13,538 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:33:13,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 46 [2022-12-13 14:33:14,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 419 treesize of output 415 [2022-12-13 14:33:14,293 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:33:14,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 374 treesize of output 318 [2022-12-13 14:33:14,313 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:33:14,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 319 treesize of output 275 [2022-12-13 14:33:14,339 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:33:14,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 88 [2022-12-13 14:33:14,935 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:33:14,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 49 [2022-12-13 14:33:15,162 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2022-12-13 14:33:15,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398402602] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:33:15,162 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:33:15,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 16] total 44 [2022-12-13 14:33:15,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111665009] [2022-12-13 14:33:15,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:33:15,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-12-13 14:33:15,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:33:15,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-12-13 14:33:15,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1604, Unknown=50, NotChecked=166, Total=1980 [2022-12-13 14:33:15,164 INFO L87 Difference]: Start difference. First operand 77 states and 88 transitions. Second operand has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 45 states have internal predecessors, (83), 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) [2022-12-13 14:33:23,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:33:23,289 INFO L93 Difference]: Finished difference Result 194 states and 214 transitions. [2022-12-13 14:33:23,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-12-13 14:33:23,290 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 45 states have internal predecessors, (83), 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 29 [2022-12-13 14:33:23,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:33:23,290 INFO L225 Difference]: With dead ends: 194 [2022-12-13 14:33:23,290 INFO L226 Difference]: Without dead ends: 193 [2022-12-13 14:33:23,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 32 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1611 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=1012, Invalid=6021, Unknown=115, NotChecked=334, Total=7482 [2022-12-13 14:33:23,292 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 646 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 134 mSolverCounterUnsat, 72 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 72 IncrementalHoareTripleChecker+Unknown, 193 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-13 14:33:23,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 497 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1085 Invalid, 72 Unknown, 193 Unchecked, 2.9s Time] [2022-12-13 14:33:23,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-12-13 14:33:23,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 98. [2022-12-13 14:33:23,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 94 states have (on average 1.202127659574468) internal successors, (113), 97 states have internal predecessors, (113), 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) [2022-12-13 14:33:23,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 113 transitions. [2022-12-13 14:33:23,313 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 113 transitions. Word has length 29 [2022-12-13 14:33:23,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:33:23,314 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 113 transitions. [2022-12-13 14:33:23,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 45 states have internal predecessors, (83), 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) [2022-12-13 14:33:23,314 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 113 transitions. [2022-12-13 14:33:23,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-13 14:33:23,314 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:33:23,314 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:33:23,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 14:33:23,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:33:23,516 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:33:23,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:33:23,517 INFO L85 PathProgramCache]: Analyzing trace with hash 154775480, now seen corresponding path program 1 times [2022-12-13 14:33:23,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:33:23,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081361392] [2022-12-13 14:33:23,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:23,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:33:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:25,246 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:25,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:33:25,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081361392] [2022-12-13 14:33:25,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081361392] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:33:25,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081392886] [2022-12-13 14:33:25,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:25,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:33:25,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:33:25,248 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:33:25,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 14:33:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:25,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-13 14:33:25,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:33:25,315 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-13 14:33:25,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2022-12-13 14:33:25,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 14:33:25,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 14:33:25,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-13 14:33:25,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-12-13 14:33:25,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 13 [2022-12-13 14:33:25,926 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:25,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:33:26,129 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse2 (* .cse4 4)) (.cse0 (<= .cse4 2147483647))) (and (or .cse0 (forall ((v_ArrVal_364 (Array Int Int))) (< (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_364))) (+ (select (select .cse1 |c_ULTIMATE.start_main_~#A~0#1.base|) (+ (- 17179869184) |c_ULTIMATE.start_main_~#A~0#1.offset| .cse2)) (select (select .cse1 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |c_ULTIMATE.start_main_~#B~0#1.offset| (- 17179869184) .cse2)))) 2147483648))) (or (forall ((v_ArrVal_364 (Array Int Int))) (< (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_364))) (+ (select (select .cse3 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |c_ULTIMATE.start_main_~#B~0#1.offset| .cse2)) (select (select .cse3 |c_ULTIMATE.start_main_~#A~0#1.base|) (+ |c_ULTIMATE.start_main_~#A~0#1.offset| .cse2)))) 2147483648)) (not .cse0))))) is different from false [2022-12-13 14:33:26,155 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_364 (Array Int Int))) (< (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_364))) (+ (select (select .cse0 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |c_ULTIMATE.start_main_~#B~0#1.offset| 4)) (select (select .cse0 |c_ULTIMATE.start_main_~#A~0#1.base|) (+ |c_ULTIMATE.start_main_~#A~0#1.offset| 4)))) 2147483648)) is different from false [2022-12-13 14:33:26,286 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse6 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse0 (<= .cse6 2147483647)) (.cse2 (+ |c_ULTIMATE.start_main_~#A~0#1.offset| 4)) (.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base|)) (.cse4 (* .cse6 4))) (and (or (not .cse0) (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_362 Int) (v_ArrVal_364 (Array Int Int))) (or (< (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse3 (+ |ULTIMATE.start_main_~#B~0#1.offset| .cse4) v_ArrVal_362)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_364))) (+ (select (select .cse1 |c_ULTIMATE.start_main_~#A~0#1.base|) .cse2) (select (select .cse1 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| 4)))) 2147483648) (< 1000000 v_ArrVal_362)))) (or .cse0 (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_362 Int) (v_ArrVal_364 (Array Int Int))) (or (< (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse3 (+ (- 17179869184) |ULTIMATE.start_main_~#B~0#1.offset| .cse4) v_ArrVal_362)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_364))) (+ (select (select .cse5 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| 4)) (select (select .cse5 |c_ULTIMATE.start_main_~#A~0#1.base|) .cse2))) 2147483648) (< 1000000 v_ArrVal_362))))))) is different from false [2022-12-13 14:33:26,310 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse6 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse0 (<= .cse6 2147483647)) (.cse2 (+ |c_ULTIMATE.start_main_~#A~0#1.offset| 4)) (.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base|)) (.cse4 (* .cse6 4))) (and (or .cse0 (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_362 Int) (v_ArrVal_364 (Array Int Int))) (or (< (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse3 (+ (- 17179869184) |ULTIMATE.start_main_~#B~0#1.offset| .cse4) v_ArrVal_362)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_364))) (+ (select (select .cse1 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| 4)) (select (select .cse1 |c_ULTIMATE.start_main_~#A~0#1.base|) .cse2))) 2147483648) (< 1000000 v_ArrVal_362)))) (or (not .cse0) (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_362 Int) (v_ArrVal_364 (Array Int Int))) (or (< 1000000 v_ArrVal_362) (< (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse3 (+ |ULTIMATE.start_main_~#B~0#1.offset| .cse4) v_ArrVal_362)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_364))) (+ (select (select .cse5 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| 4)) (select (select .cse5 |c_ULTIMATE.start_main_~#A~0#1.base|) .cse2))) 2147483648))))))) is different from false [2022-12-13 14:33:26,367 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:33:26,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 45 [2022-12-13 14:33:26,381 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:33:26,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 44 [2022-12-13 14:33:26,395 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse2 (+ |c_ULTIMATE.start_main_~#A~0#1.offset| 4)) (.cse3 (* .cse5 4)) (.cse0 (<= .cse5 2147483647))) (and (or .cse0 (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_364 (Array Int Int)) (v_arrayElimArr_9 (Array Int Int))) (or (< (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| v_arrayElimArr_9) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_364))) (+ (select (select .cse1 |c_ULTIMATE.start_main_~#A~0#1.base|) .cse2) (select (select .cse1 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| 4)))) 2147483648) (< 1000000 (select v_arrayElimArr_9 (+ (- 17179869184) |ULTIMATE.start_main_~#B~0#1.offset| .cse3)))))) (or (forall ((v_arrayElimArr_10 (Array Int Int)) (|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_364 (Array Int Int))) (or (< (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| v_arrayElimArr_10) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_364))) (+ (select (select .cse4 |c_ULTIMATE.start_main_~#A~0#1.base|) .cse2) (select (select .cse4 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| 4)))) 2147483648) (< 1000000 (select v_arrayElimArr_10 (+ |ULTIMATE.start_main_~#B~0#1.offset| .cse3))))) (not .cse0))))) is different from false [2022-12-13 14:33:26,406 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_10 (Array Int Int)) (|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_364 (Array Int Int))) (let ((.cse0 (+ |ULTIMATE.start_main_~#B~0#1.offset| 4))) (or (< 1000000 (select v_arrayElimArr_10 .cse0)) (< (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| v_arrayElimArr_10) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_364))) (+ (select (select .cse1 |c_ULTIMATE.start_main_~#A~0#1.base|) (+ |c_ULTIMATE.start_main_~#A~0#1.offset| 4)) (select (select .cse1 |c_ULTIMATE.start_main_~#B~0#1.base|) .cse0))) 2147483648)))) is different from false [2022-12-13 14:33:26,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 403 treesize of output 399 [2022-12-13 14:33:26,540 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:33:26,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 365 treesize of output 321 [2022-12-13 14:33:26,562 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:33:26,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 310 treesize of output 254 [2022-12-13 14:33:26,582 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:33:26,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 88 [2022-12-13 14:33:27,248 INFO L321 Elim1Store]: treesize reduction 24, result has 55.6 percent of original size [2022-12-13 14:33:27,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 68 [2022-12-13 14:33:27,253 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:33:27,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 51 [2022-12-13 14:33:27,434 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 13 not checked. [2022-12-13 14:33:27,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081392886] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:33:27,434 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:33:27,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 40 [2022-12-13 14:33:27,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153011350] [2022-12-13 14:33:27,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:33:27,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-13 14:33:27,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:33:27,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-13 14:33:27,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1054, Unknown=6, NotChecked=426, Total=1640 [2022-12-13 14:33:27,435 INFO L87 Difference]: Start difference. First operand 98 states and 113 transitions. Second operand has 41 states, 40 states have (on average 2.15) internal successors, (86), 41 states have internal predecessors, (86), 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) [2022-12-13 14:33:27,856 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_arrayElimArr_10 (Array Int Int)) (|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_364 (Array Int Int))) (let ((.cse1 (+ |ULTIMATE.start_main_~#B~0#1.offset| 4))) (or (< 1000000 (select v_arrayElimArr_10 .cse1)) (< (let ((.cse2 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| v_arrayElimArr_10) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_364))) (+ (select (select .cse2 |c_ULTIMATE.start_main_~#A~0#1.base|) (+ |c_ULTIMATE.start_main_~#A~0#1.offset| 4)) (select (select .cse2 |c_ULTIMATE.start_main_~#B~0#1.base|) .cse1))) 2147483648)))))) (and .cse0 (or .cse0 (not (<= |c_ULTIMATE.start_main_#t~mem4#1| 1000000))))) is different from false [2022-12-13 14:33:44,663 WARN L233 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 67 DAG size of output: 49 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 14:33:53,014 WARN L233 SmtUtils]: Spent 8.08s on a formula simplification. DAG size of input: 43 DAG size of output: 39 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 14:33:53,027 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ArrVal_364 (Array Int Int))) (< (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_364))) (+ (select (select .cse1 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |c_ULTIMATE.start_main_~#B~0#1.offset| 4)) (select (select .cse1 |c_ULTIMATE.start_main_~#A~0#1.base|) (+ |c_ULTIMATE.start_main_~#A~0#1.offset| 4)))) 2147483648)))) (and (or (not (<= |c_ULTIMATE.start_main_#t~mem8#1| 1000000)) .cse0) .cse0)) is different from false [2022-12-13 14:34:05,315 WARN L233 SmtUtils]: Spent 12.15s on a formula simplification. DAG size of input: 52 DAG size of output: 47 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 14:34:07,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:34:07,058 INFO L93 Difference]: Finished difference Result 191 states and 212 transitions. [2022-12-13 14:34:07,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-13 14:34:07,058 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.15) internal successors, (86), 41 states have internal predecessors, (86), 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 30 [2022-12-13 14:34:07,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:34:07,060 INFO L225 Difference]: With dead ends: 191 [2022-12-13 14:34:07,060 INFO L226 Difference]: Without dead ends: 190 [2022-12-13 14:34:07,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 34 SyntacticMatches, 11 SemanticMatches, 64 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 40.0s TimeCoverageRelationStatistics Valid=515, Invalid=2815, Unknown=8, NotChecked=952, Total=4290 [2022-12-13 14:34:07,061 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 297 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 73 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 566 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 14:34:07,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 429 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 660 Invalid, 9 Unknown, 566 Unchecked, 0.8s Time] [2022-12-13 14:34:07,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-12-13 14:34:07,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 99. [2022-12-13 14:34:07,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.2) internal successors, (114), 98 states have internal predecessors, (114), 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) [2022-12-13 14:34:07,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 114 transitions. [2022-12-13 14:34:07,085 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 114 transitions. Word has length 30 [2022-12-13 14:34:07,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:34:07,085 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 114 transitions. [2022-12-13 14:34:07,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.15) internal successors, (86), 41 states have internal predecessors, (86), 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) [2022-12-13 14:34:07,085 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 114 transitions. [2022-12-13 14:34:07,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-13 14:34:07,085 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:34:07,085 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] [2022-12-13 14:34:07,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 14:34:07,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:34:07,287 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:34:07,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:34:07,288 INFO L85 PathProgramCache]: Analyzing trace with hash 503021237, now seen corresponding path program 2 times [2022-12-13 14:34:07,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:34:07,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019988976] [2022-12-13 14:34:07,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:34:07,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:34:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:34:07,440 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 14:34:07,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:34:07,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019988976] [2022-12-13 14:34:07,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019988976] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:34:07,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39607478] [2022-12-13 14:34:07,440 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:34:07,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:34:07,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:34:07,441 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:34:07,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 14:34:07,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 14:34:07,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:34:07,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 14:34:07,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:34:07,579 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 14:34:07,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:34:07,668 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 14:34:07,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39607478] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:34:07,668 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:34:07,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 12 [2022-12-13 14:34:07,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959631676] [2022-12-13 14:34:07,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:34:07,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:34:07,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:34:07,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:34:07,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:34:07,669 INFO L87 Difference]: Start difference. First operand 99 states and 114 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 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) [2022-12-13 14:34:07,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:34:07,933 INFO L93 Difference]: Finished difference Result 127 states and 140 transitions. [2022-12-13 14:34:07,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:34:07,934 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 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 31 [2022-12-13 14:34:07,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:34:07,934 INFO L225 Difference]: With dead ends: 127 [2022-12-13 14:34:07,935 INFO L226 Difference]: Without dead ends: 117 [2022-12-13 14:34:07,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2022-12-13 14:34:07,935 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 116 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:34:07,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 122 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 14:34:07,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-12-13 14:34:07,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 90. [2022-12-13 14:34:07,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 86 states have (on average 1.1744186046511629) internal successors, (101), 89 states have internal predecessors, (101), 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) [2022-12-13 14:34:07,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 101 transitions. [2022-12-13 14:34:07,957 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 101 transitions. Word has length 31 [2022-12-13 14:34:07,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:34:07,957 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 101 transitions. [2022-12-13 14:34:07,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 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) [2022-12-13 14:34:07,957 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 101 transitions. [2022-12-13 14:34:07,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-13 14:34:07,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:34:07,957 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:34:07,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-13 14:34:08,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:34:08,159 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:34:08,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:34:08,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1878453107, now seen corresponding path program 3 times [2022-12-13 14:34:08,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:34:08,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976748195] [2022-12-13 14:34:08,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:34:08,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:34:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:34:08,406 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 14:34:08,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:34:08,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976748195] [2022-12-13 14:34:08,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976748195] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:34:08,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130833839] [2022-12-13 14:34:08,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 14:34:08,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:34:08,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:34:08,407 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:34:08,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 14:34:08,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-13 14:34:08,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:34:08,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 14:34:08,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:34:08,660 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 14:34:08,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:34:08,798 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 14:34:08,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130833839] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:34:08,798 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:34:08,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 19 [2022-12-13 14:34:08,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363898739] [2022-12-13 14:34:08,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:34:08,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-13 14:34:08,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:34:08,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-13 14:34:08,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2022-12-13 14:34:08,800 INFO L87 Difference]: Start difference. First operand 90 states and 101 transitions. Second operand has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 states have internal predecessors, (70), 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) [2022-12-13 14:34:09,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:34:09,136 INFO L93 Difference]: Finished difference Result 181 states and 194 transitions. [2022-12-13 14:34:09,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:34:09,136 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 states have internal predecessors, (70), 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 33 [2022-12-13 14:34:09,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:34:09,137 INFO L225 Difference]: With dead ends: 181 [2022-12-13 14:34:09,138 INFO L226 Difference]: Without dead ends: 147 [2022-12-13 14:34:09,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 53 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2022-12-13 14:34:09,139 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 190 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:34:09,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 326 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:34:09,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-12-13 14:34:09,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 110. [2022-12-13 14:34:09,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 106 states have (on average 1.1981132075471699) internal successors, (127), 109 states have internal predecessors, (127), 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) [2022-12-13 14:34:09,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 127 transitions. [2022-12-13 14:34:09,172 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 127 transitions. Word has length 33 [2022-12-13 14:34:09,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:34:09,172 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 127 transitions. [2022-12-13 14:34:09,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 states have internal predecessors, (70), 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) [2022-12-13 14:34:09,173 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 127 transitions. [2022-12-13 14:34:09,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-13 14:34:09,173 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:34:09,173 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:34:09,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 14:34:09,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 14:34:09,375 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 14:34:09,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:34:09,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1602769235, now seen corresponding path program 3 times [2022-12-13 14:34:09,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:34:09,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389583605] [2022-12-13 14:34:09,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:34:09,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:34:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:34:11,705 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:34:11,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:34:11,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389583605] [2022-12-13 14:34:11,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389583605] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:34:11,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949643173] [2022-12-13 14:34:11,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 14:34:11,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:34:11,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:34:11,706 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:34:11,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c182ac8-ada7-4bce-8a81-bb388cf631d4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 14:34:11,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-13 14:34:11,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:34:11,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 54 conjunts are in the unsatisfiable core [2022-12-13 14:34:11,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:34:11,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-13 14:34:11,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 45 [2022-12-13 14:34:11,848 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 14:34:11,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-12-13 14:34:11,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2022-12-13 14:34:11,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:11,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:11,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 102 [2022-12-13 14:34:11,938 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 14:34:12,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 71 [2022-12-13 14:34:12,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:12,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:12,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:12,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:12,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:12,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 141 [2022-12-13 14:34:12,150 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 14:34:13,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 143 [2022-12-13 14:34:13,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-12-13 14:34:14,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 158 [2022-12-13 14:34:14,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:14,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 118 [2022-12-13 14:34:15,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 159 [2022-12-13 14:34:16,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:16,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:16,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:16,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:16,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 121 [2022-12-13 14:34:16,047 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-13 14:34:17,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 112 [2022-12-13 14:34:17,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:17,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:17,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:17,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:17,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:17,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 14:34:17,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 19 [2022-12-13 14:34:17,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2022-12-13 14:34:17,836 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:34:17,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:34:31,994 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:34:31,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 201 treesize of output 203 [2022-12-13 14:34:32,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 810 [2022-12-13 14:34:32,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2907790 treesize of output 2903694 [2022-12-13 14:34:40,827 WARN L233 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 2242 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-13 14:35:17,964 WARN L233 SmtUtils]: Spent 28.97s on a formula simplification. DAG size of input: 2241 DAG size of output: 2241 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-13 14:35:40,800 WARN L233 SmtUtils]: Spent 14.65s on a formula simplification. DAG size of input: 1750 DAG size of output: 1750 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-13 14:36:19,655 WARN L233 SmtUtils]: Spent 11.56s on a formula simplification. DAG size of input: 827 DAG size of output: 827 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-13 14:36:29,390 WARN L233 SmtUtils]: Spent 8.12s on a formula simplification. DAG size of input: 825 DAG size of output: 825 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-13 14:36:43,558 WARN L233 SmtUtils]: Spent 7.82s on a formula simplification. DAG size of input: 825 DAG size of output: 825 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)