./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS --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 e8c2a2f5606e46c1a328e1728dc6cdf6823e5c50ed56fab8310a8cb7bd30fe62 --- 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-4e7fbc6 [2022-11-23 03:06:30,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:06:30,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:06:30,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:06:30,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:06:30,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:06:30,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:06:30,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:06:30,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:06:30,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:06:30,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:06:30,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:06:30,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:06:30,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:06:30,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:06:30,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:06:30,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:06:30,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:06:30,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:06:30,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:06:30,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:06:30,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:06:30,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:06:30,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:06:30,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:06:30,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:06:30,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:06:30,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:06:30,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:06:30,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:06:30,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:06:30,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:06:30,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:06:30,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:06:30,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:06:30,432 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:06:30,433 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:06:30,433 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:06:30,434 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:06:30,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:06:30,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:06:30,437 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 03:06:30,463 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:06:30,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:06:30,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:06:30,464 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:06:30,465 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:06:30,465 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:06:30,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:06:30,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:06:30,467 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:06:30,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:06:30,468 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:06:30,468 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:06:30,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:06:30,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:06:30,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:06:30,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:06:30,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:06:30,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:06:30,471 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:06:30,471 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:06:30,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:06:30,472 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:06:30,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:06:30,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:06:30,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:06:30,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:06:30,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:06:30,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:06:30,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:06:30,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:06:30,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:06:30,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:06:30,476 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:06:30,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:06:30,476 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:06:30,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:06:30,477 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_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8c2a2f5606e46c1a328e1728dc6cdf6823e5c50ed56fab8310a8cb7bd30fe62 [2022-11-23 03:06:30,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:06:30,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:06:30,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:06:30,879 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:06:30,880 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:06:30,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i [2022-11-23 03:06:34,115 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:06:34,482 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:06:34,482 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i [2022-11-23 03:06:34,491 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/data/45a4eb273/e500d77555ab471ebec520e89a447b5d/FLAGcee7409d1 [2022-11-23 03:06:34,515 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/data/45a4eb273/e500d77555ab471ebec520e89a447b5d [2022-11-23 03:06:34,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:06:34,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:06:34,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:06:34,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:06:34,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:06:34,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:06:34" (1/1) ... [2022-11-23 03:06:34,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@782b1a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:34, skipping insertion in model container [2022-11-23 03:06:34,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:06:34" (1/1) ... [2022-11-23 03:06:34,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:06:34,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:06:34,722 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_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i[873,886] [2022-11-23 03:06:34,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:06:34,752 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:06:34,767 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_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i[873,886] [2022-11-23 03:06:34,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:06:34,789 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:06:34,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:34 WrapperNode [2022-11-23 03:06:34,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:06:34,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:06:34,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:06:34,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:06:34,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:34" (1/1) ... [2022-11-23 03:06:34,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:34" (1/1) ... [2022-11-23 03:06:34,830 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2022-11-23 03:06:34,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:06:34,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:06:34,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:06:34,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:06:34,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:34" (1/1) ... [2022-11-23 03:06:34,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:34" (1/1) ... [2022-11-23 03:06:34,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:34" (1/1) ... [2022-11-23 03:06:34,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:34" (1/1) ... [2022-11-23 03:06:34,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:34" (1/1) ... [2022-11-23 03:06:34,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:34" (1/1) ... [2022-11-23 03:06:34,852 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:34" (1/1) ... [2022-11-23 03:06:34,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:34" (1/1) ... [2022-11-23 03:06:34,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:06:34,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:06:34,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:06:34,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:06:34,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:34" (1/1) ... [2022-11-23 03:06:34,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:06:34,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:34,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:06:34,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:06:34,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:06:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:06:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:06:34,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:06:35,040 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:06:35,042 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:06:35,291 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:06:35,299 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:06:35,299 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 03:06:35,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:06:35 BoogieIcfgContainer [2022-11-23 03:06:35,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:06:35,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:06:35,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:06:35,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:06:35,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:06:34" (1/3) ... [2022-11-23 03:06:35,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eafd122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:06:35, skipping insertion in model container [2022-11-23 03:06:35,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:34" (2/3) ... [2022-11-23 03:06:35,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eafd122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:06:35, skipping insertion in model container [2022-11-23 03:06:35,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:06:35" (3/3) ... [2022-11-23 03:06:35,326 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark41_conjunctive.i [2022-11-23 03:06:35,378 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:06:35,378 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-23 03:06:35,457 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:06:35,466 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;@c2c15ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:06:35,466 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-23 03:06:35,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:35,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 03:06:35,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:35,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:06:35,478 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:35,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:35,485 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-11-23 03:06:35,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:35,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8311070] [2022-11-23 03:06:35,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:35,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:35,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:35,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:35,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8311070] [2022-11-23 03:06:35,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8311070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:06:35,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:06:35,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:06:35,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896315911] [2022-11-23 03:06:35,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:06:35,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:06:35,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:35,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:06:35,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:06:35,780 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 31 states have internal predecessors, (36), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:35,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:35,899 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2022-11-23 03:06:35,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:06:35,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-11-23 03:06:35,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:35,913 INFO L225 Difference]: With dead ends: 48 [2022-11-23 03:06:35,914 INFO L226 Difference]: Without dead ends: 25 [2022-11-23 03:06:35,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:06:35,921 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 31 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:35,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 36 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:06:35,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-23 03:06:35,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-23 03:06:35,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.5625) internal successors, (25), 24 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:35,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2022-11-23 03:06:35,980 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 5 [2022-11-23 03:06:35,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:35,981 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2022-11-23 03:06:35,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:35,981 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2022-11-23 03:06:35,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 03:06:35,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:35,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:06:35,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:06:35,983 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:35,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:35,984 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2022-11-23 03:06:35,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:35,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949961369] [2022-11-23 03:06:35,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:35,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:36,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:36,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:36,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949961369] [2022-11-23 03:06:36,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949961369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:06:36,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:06:36,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:06:36,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847941314] [2022-11-23 03:06:36,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:06:36,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:06:36,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:36,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:06:36,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:06:36,072 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:36,148 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2022-11-23 03:06:36,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:06:36,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 03:06:36,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:36,151 INFO L225 Difference]: With dead ends: 39 [2022-11-23 03:06:36,151 INFO L226 Difference]: Without dead ends: 38 [2022-11-23 03:06:36,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:06:36,153 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:36,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 39 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:06:36,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-23 03:06:36,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2022-11-23 03:06:36,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2022-11-23 03:06:36,163 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 6 [2022-11-23 03:06:36,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:36,163 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2022-11-23 03:06:36,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,164 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2022-11-23 03:06:36,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 03:06:36,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:36,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:36,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:06:36,166 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:36,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:36,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2022-11-23 03:06:36,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:36,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633227435] [2022-11-23 03:06:36,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:36,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:36,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:36,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:36,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633227435] [2022-11-23 03:06:36,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633227435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:06:36,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:06:36,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:06:36,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771508466] [2022-11-23 03:06:36,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:06:36,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:06:36,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:36,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:06:36,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:06:36,281 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:36,337 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-11-23 03:06:36,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:06:36,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-11-23 03:06:36,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:36,341 INFO L225 Difference]: With dead ends: 28 [2022-11-23 03:06:36,342 INFO L226 Difference]: Without dead ends: 27 [2022-11-23 03:06:36,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:06:36,344 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:36,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 24 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:06:36,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-23 03:06:36,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-23 03:06:36,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-11-23 03:06:36,352 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 7 [2022-11-23 03:06:36,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:36,353 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-11-23 03:06:36,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,353 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-11-23 03:06:36,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 03:06:36,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:36,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:36,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:06:36,363 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:36,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:36,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1806982231, now seen corresponding path program 1 times [2022-11-23 03:06:36,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:36,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655418888] [2022-11-23 03:06:36,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:36,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:36,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:36,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:36,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655418888] [2022-11-23 03:06:36,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655418888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:06:36,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:06:36,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:06:36,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921670353] [2022-11-23 03:06:36,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:06:36,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:06:36,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:36,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:06:36,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:06:36,528 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:36,643 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2022-11-23 03:06:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:06:36,645 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-11-23 03:06:36,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:36,646 INFO L225 Difference]: With dead ends: 37 [2022-11-23 03:06:36,646 INFO L226 Difference]: Without dead ends: 36 [2022-11-23 03:06:36,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:06:36,649 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 25 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:36,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 37 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:06:36,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-23 03:06:36,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2022-11-23 03:06:36,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-11-23 03:06:36,658 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 7 [2022-11-23 03:06:36,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:36,659 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-11-23 03:06:36,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,660 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-11-23 03:06:36,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 03:06:36,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:36,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:36,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:06:36,662 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:36,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:36,663 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2022-11-23 03:06:36,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:36,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373509443] [2022-11-23 03:06:36,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:36,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:36,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:36,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:36,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373509443] [2022-11-23 03:06:36,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373509443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:06:36,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:06:36,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:06:36,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99448037] [2022-11-23 03:06:36,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:06:36,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:06:36,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:36,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:06:36,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:06:36,726 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:36,776 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2022-11-23 03:06:36,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:06:36,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-11-23 03:06:36,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:36,777 INFO L225 Difference]: With dead ends: 39 [2022-11-23 03:06:36,778 INFO L226 Difference]: Without dead ends: 38 [2022-11-23 03:06:36,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:06:36,780 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:36,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 38 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:06:36,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-23 03:06:36,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2022-11-23 03:06:36,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.375) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-11-23 03:06:36,788 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 8 [2022-11-23 03:06:36,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:36,788 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-11-23 03:06:36,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,789 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-11-23 03:06:36,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 03:06:36,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:36,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:36,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:06:36,791 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:36,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:36,792 INFO L85 PathProgramCache]: Analyzing trace with hash 181874382, now seen corresponding path program 1 times [2022-11-23 03:06:36,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:36,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844500655] [2022-11-23 03:06:36,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:36,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:36,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:36,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:36,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844500655] [2022-11-23 03:06:36,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844500655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:06:36,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:06:36,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:06:36,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015923450] [2022-11-23 03:06:36,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:06:36,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:06:36,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:36,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:06:36,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:06:36,848 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:36,896 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-11-23 03:06:36,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:06:36,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-11-23 03:06:36,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:36,898 INFO L225 Difference]: With dead ends: 34 [2022-11-23 03:06:36,898 INFO L226 Difference]: Without dead ends: 33 [2022-11-23 03:06:36,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:06:36,900 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 34 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:36,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 25 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:06:36,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-23 03:06:36,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-23 03:06:36,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.36) internal successors, (34), 32 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) [2022-11-23 03:06:36,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-11-23 03:06:36,908 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 8 [2022-11-23 03:06:36,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:36,909 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-11-23 03:06:36,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,910 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-11-23 03:06:36,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 03:06:36,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:36,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:36,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:06:36,911 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:36,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:36,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1387005865, now seen corresponding path program 1 times [2022-11-23 03:06:36,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:36,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704991087] [2022-11-23 03:06:36,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:36,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:36,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:36,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:36,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704991087] [2022-11-23 03:06:36,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704991087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:06:36,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:06:36,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:06:36,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470952143] [2022-11-23 03:06:36,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:06:36,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:06:36,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:36,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:06:36,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:06:36,955 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2022-11-23 03:06:36,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:36,978 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2022-11-23 03:06:36,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:06:36,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 [2022-11-23 03:06:36,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:36,980 INFO L225 Difference]: With dead ends: 40 [2022-11-23 03:06:36,980 INFO L226 Difference]: Without dead ends: 39 [2022-11-23 03:06:36,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:06:36,981 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:36,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 33 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:06:36,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-23 03:06:36,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2022-11-23 03:06:36,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-11-23 03:06:36,988 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 9 [2022-11-23 03:06:36,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:36,989 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-11-23 03:06:36,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:36,989 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-11-23 03:06:36,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 03:06:36,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:36,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:36,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 03:06:36,991 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:36,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:36,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1343138617, now seen corresponding path program 1 times [2022-11-23 03:06:36,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:36,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454169577] [2022-11-23 03:06:36,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:36,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:37,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:37,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:37,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454169577] [2022-11-23 03:06:37,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454169577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:06:37,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:06:37,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:06:37,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225292802] [2022-11-23 03:06:37,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:06:37,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:06:37,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:37,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:06:37,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:06:37,083 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 5 states, 4 states have (on average 2.25) 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) [2022-11-23 03:06:37,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:37,144 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2022-11-23 03:06:37,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:06:37,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) 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 [2022-11-23 03:06:37,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:37,146 INFO L225 Difference]: With dead ends: 38 [2022-11-23 03:06:37,146 INFO L226 Difference]: Without dead ends: 37 [2022-11-23 03:06:37,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:06:37,148 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 24 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:37,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 31 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:06:37,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-23 03:06:37,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2022-11-23 03:06:37,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 34 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:37,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2022-11-23 03:06:37,155 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 9 [2022-11-23 03:06:37,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:37,156 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2022-11-23 03:06:37,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) 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) [2022-11-23 03:06:37,156 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2022-11-23 03:06:37,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 03:06:37,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:37,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:37,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 03:06:37,158 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:37,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:37,159 INFO L85 PathProgramCache]: Analyzing trace with hash 47508913, now seen corresponding path program 1 times [2022-11-23 03:06:37,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:37,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50538495] [2022-11-23 03:06:37,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:37,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:37,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:37,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:37,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50538495] [2022-11-23 03:06:37,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50538495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:06:37,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:06:37,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:06:37,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348268108] [2022-11-23 03:06:37,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:06:37,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:06:37,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:37,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:06:37,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:06:37,199 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:37,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:37,213 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2022-11-23 03:06:37,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:06:37,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-23 03:06:37,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:37,215 INFO L225 Difference]: With dead ends: 35 [2022-11-23 03:06:37,215 INFO L226 Difference]: Without dead ends: 34 [2022-11-23 03:06:37,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:06:37,217 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:37,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 17 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:06:37,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-23 03:06:37,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-23 03:06:37,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:37,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-11-23 03:06:37,224 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 10 [2022-11-23 03:06:37,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:37,225 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-11-23 03:06:37,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:37,225 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-11-23 03:06:37,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 03:06:37,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:37,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:37,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 03:06:37,227 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:37,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:37,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1312375760, now seen corresponding path program 1 times [2022-11-23 03:06:37,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:37,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636628171] [2022-11-23 03:06:37,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:37,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:37,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:37,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:37,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636628171] [2022-11-23 03:06:37,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636628171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:06:37,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:06:37,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:06:37,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552362087] [2022-11-23 03:06:37,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:06:37,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:06:37,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:37,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:06:37,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:06:37,304 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:37,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:37,377 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2022-11-23 03:06:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:06:37,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2022-11-23 03:06:37,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:37,379 INFO L225 Difference]: With dead ends: 36 [2022-11-23 03:06:37,380 INFO L226 Difference]: Without dead ends: 29 [2022-11-23 03:06:37,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:06:37,381 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 30 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:37,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 20 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:06:37,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-23 03:06:37,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-23 03:06:37,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:37,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2022-11-23 03:06:37,388 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 10 [2022-11-23 03:06:37,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:37,388 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2022-11-23 03:06:37,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:37,389 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2022-11-23 03:06:37,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 03:06:37,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:37,390 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:37,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 03:06:37,390 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:37,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:37,391 INFO L85 PathProgramCache]: Analyzing trace with hash -2001134753, now seen corresponding path program 1 times [2022-11-23 03:06:37,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:37,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11247634] [2022-11-23 03:06:37,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:37,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:37,464 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:37,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:37,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11247634] [2022-11-23 03:06:37,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11247634] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:06:37,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434669409] [2022-11-23 03:06:37,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:37,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:37,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:37,470 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:06:37,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:06:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:37,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 03:06:37,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:06:37,679 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:37,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:06:37,771 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:37,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434669409] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:06:37,771 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:06:37,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-23 03:06:37,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666195404] [2022-11-23 03:06:37,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:06:37,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 03:06:37,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:37,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 03:06:37,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:06:37,780 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:37,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:37,934 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2022-11-23 03:06:37,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 03:06:37,935 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 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 13 [2022-11-23 03:06:37,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:37,939 INFO L225 Difference]: With dead ends: 82 [2022-11-23 03:06:37,940 INFO L226 Difference]: Without dead ends: 81 [2022-11-23 03:06:37,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:06:37,941 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 78 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:37,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 67 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:06:37,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-23 03:06:37,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 47. [2022-11-23 03:06:37,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 40 states have (on average 1.35) internal successors, (54), 46 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) [2022-11-23 03:06:37,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2022-11-23 03:06:37,966 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 13 [2022-11-23 03:06:37,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:37,967 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2022-11-23 03:06:37,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:37,968 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2022-11-23 03:06:37,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 03:06:37,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:37,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:37,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:06:38,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-23 03:06:38,176 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:38,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:38,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1905680795, now seen corresponding path program 1 times [2022-11-23 03:06:38,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:38,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465351273] [2022-11-23 03:06:38,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:38,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:38,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:38,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:38,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465351273] [2022-11-23 03:06:38,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465351273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:06:38,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:06:38,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:06:38,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773851432] [2022-11-23 03:06:38,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:06:38,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:06:38,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:38,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:06:38,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:06:38,289 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:38,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:38,388 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2022-11-23 03:06:38,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:06:38,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 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 14 [2022-11-23 03:06:38,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:38,391 INFO L225 Difference]: With dead ends: 47 [2022-11-23 03:06:38,391 INFO L226 Difference]: Without dead ends: 46 [2022-11-23 03:06:38,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:06:38,392 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 34 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:38,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 35 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:06:38,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-23 03:06:38,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-23 03:06:38,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 40 states have (on average 1.325) internal successors, (53), 45 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:38,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2022-11-23 03:06:38,399 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 14 [2022-11-23 03:06:38,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:38,400 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2022-11-23 03:06:38,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:38,400 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2022-11-23 03:06:38,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 03:06:38,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:38,401 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:38,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 03:06:38,402 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:38,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:38,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1054852641, now seen corresponding path program 1 times [2022-11-23 03:06:38,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:38,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583128707] [2022-11-23 03:06:38,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:38,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:38,478 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:38,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:38,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583128707] [2022-11-23 03:06:38,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583128707] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:06:38,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263577404] [2022-11-23 03:06:38,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:38,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:38,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:38,481 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:06:38,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:06:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:38,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:06:38,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:06:38,590 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:38,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:06:38,674 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:38,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263577404] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:06:38,675 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:06:38,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-23 03:06:38,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760331205] [2022-11-23 03:06:38,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:06:38,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 03:06:38,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:38,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 03:06:38,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:06:38,678 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:38,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:38,845 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2022-11-23 03:06:38,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 03:06:38,846 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 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 15 [2022-11-23 03:06:38,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:38,847 INFO L225 Difference]: With dead ends: 78 [2022-11-23 03:06:38,847 INFO L226 Difference]: Without dead ends: 77 [2022-11-23 03:06:38,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:06:38,849 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 43 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:38,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 69 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:06:38,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-23 03:06:38,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 48. [2022-11-23 03:06:38,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 47 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:38,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2022-11-23 03:06:38,868 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 15 [2022-11-23 03:06:38,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:38,868 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2022-11-23 03:06:38,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:38,870 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2022-11-23 03:06:38,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 03:06:38,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:38,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:38,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:06:39,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-23 03:06:39,082 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:39,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:39,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1053437568, now seen corresponding path program 1 times [2022-11-23 03:06:39,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:39,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919130628] [2022-11-23 03:06:39,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:39,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:39,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:39,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:39,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919130628] [2022-11-23 03:06:39,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919130628] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:06:39,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860598707] [2022-11-23 03:06:39,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:39,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:39,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:39,196 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:06:39,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 03:06:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:39,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:06:39,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:06:39,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:39,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:06:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:39,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860598707] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:06:39,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:06:39,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-11-23 03:06:39,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453140307] [2022-11-23 03:06:39,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:06:39,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:06:39,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:39,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:06:39,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:06:39,495 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:39,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:39,662 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2022-11-23 03:06:39,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:06:39,663 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 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 15 [2022-11-23 03:06:39,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:39,663 INFO L225 Difference]: With dead ends: 62 [2022-11-23 03:06:39,664 INFO L226 Difference]: Without dead ends: 61 [2022-11-23 03:06:39,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:06:39,665 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 32 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:39,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 65 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:06:39,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-23 03:06:39,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52. [2022-11-23 03:06:39,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 51 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:39,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2022-11-23 03:06:39,672 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 15 [2022-11-23 03:06:39,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:39,672 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2022-11-23 03:06:39,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:39,673 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2022-11-23 03:06:39,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 03:06:39,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:39,674 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:39,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:06:39,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:39,881 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:39,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:39,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1659306441, now seen corresponding path program 1 times [2022-11-23 03:06:39,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:39,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275584756] [2022-11-23 03:06:39,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:39,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:39,936 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:39,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:39,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275584756] [2022-11-23 03:06:39,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275584756] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:06:39,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292300048] [2022-11-23 03:06:39,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:39,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:39,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:39,938 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:06:39,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 03:06:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:39,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:06:39,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:06:40,018 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:40,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:06:40,064 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:40,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292300048] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:06:40,064 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:06:40,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-23 03:06:40,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211396627] [2022-11-23 03:06:40,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:06:40,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:06:40,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:40,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:06:40,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:06:40,068 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:40,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:40,113 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2022-11-23 03:06:40,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:06:40,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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 16 [2022-11-23 03:06:40,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:40,116 INFO L225 Difference]: With dead ends: 75 [2022-11-23 03:06:40,116 INFO L226 Difference]: Without dead ends: 74 [2022-11-23 03:06:40,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:06:40,119 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 39 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:40,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 65 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:06:40,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-23 03:06:40,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 53. [2022-11-23 03:06:40,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 52 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:40,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2022-11-23 03:06:40,138 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 16 [2022-11-23 03:06:40,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:40,138 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2022-11-23 03:06:40,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:40,138 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2022-11-23 03:06:40,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 03:06:40,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:40,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:40,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 03:06:40,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:40,353 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:40,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:40,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1703173689, now seen corresponding path program 1 times [2022-11-23 03:06:40,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:40,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341015902] [2022-11-23 03:06:40,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:40,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:40,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:40,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:40,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341015902] [2022-11-23 03:06:40,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341015902] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:06:40,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192557173] [2022-11-23 03:06:40,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:40,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:40,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:40,466 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:06:40,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 03:06:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:40,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 03:06:40,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:06:40,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:40,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:06:40,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 03:06:40,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192557173] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 03:06:40,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:06:40,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 6] total 16 [2022-11-23 03:06:40,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075303644] [2022-11-23 03:06:40,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:06:40,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:06:40,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:40,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:06:40,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-11-23 03:06:40,902 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:41,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:41,006 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2022-11-23 03:06:41,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:06:41,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2022-11-23 03:06:41,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:41,007 INFO L225 Difference]: With dead ends: 53 [2022-11-23 03:06:41,008 INFO L226 Difference]: Without dead ends: 52 [2022-11-23 03:06:41,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2022-11-23 03:06:41,009 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:41,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 15 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:06:41,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-23 03:06:41,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-23 03:06:41,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 51 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) [2022-11-23 03:06:41,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2022-11-23 03:06:41,015 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 16 [2022-11-23 03:06:41,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:41,016 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2022-11-23 03:06:41,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:41,016 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2022-11-23 03:06:41,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 03:06:41,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:41,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:41,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 03:06:41,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-23 03:06:41,225 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:41,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:41,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1258776734, now seen corresponding path program 1 times [2022-11-23 03:06:41,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:41,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088796238] [2022-11-23 03:06:41,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:41,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:41,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 03:06:41,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:41,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088796238] [2022-11-23 03:06:41,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088796238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:06:41,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:06:41,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:06:41,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983063269] [2022-11-23 03:06:41,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:06:41,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:06:41,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:41,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:06:41,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:06:41,302 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:41,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:41,364 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2022-11-23 03:06:41,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:06:41,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 [2022-11-23 03:06:41,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:41,365 INFO L225 Difference]: With dead ends: 52 [2022-11-23 03:06:41,365 INFO L226 Difference]: Without dead ends: 45 [2022-11-23 03:06:41,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:06:41,366 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 19 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:41,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 12 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:06:41,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-23 03:06:41,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-23 03:06:41,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 44 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) [2022-11-23 03:06:41,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2022-11-23 03:06:41,372 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 17 [2022-11-23 03:06:41,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:41,372 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2022-11-23 03:06:41,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:41,372 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2022-11-23 03:06:41,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-23 03:06:41,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:41,373 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:41,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 03:06:41,374 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:41,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:41,374 INFO L85 PathProgramCache]: Analyzing trace with hash 179577536, now seen corresponding path program 2 times [2022-11-23 03:06:41,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:41,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094564256] [2022-11-23 03:06:41,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:41,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:41,611 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:41,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:41,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094564256] [2022-11-23 03:06:41,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094564256] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:06:41,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430045416] [2022-11-23 03:06:41,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:06:41,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:41,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:41,614 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:06:41,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 03:06:41,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:06:41,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:06:41,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-23 03:06:41,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:06:42,012 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:42,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:06:42,265 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:42,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430045416] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:06:42,266 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:06:42,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 30 [2022-11-23 03:06:42,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059228205] [2022-11-23 03:06:42,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:06:42,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-23 03:06:42,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:42,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-23 03:06:42,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2022-11-23 03:06:42,269 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 31 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 31 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) [2022-11-23 03:06:42,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:42,693 INFO L93 Difference]: Finished difference Result 87 states and 90 transitions. [2022-11-23 03:06:42,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 03:06:42,693 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 31 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 [2022-11-23 03:06:42,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:42,694 INFO L225 Difference]: With dead ends: 87 [2022-11-23 03:06:42,694 INFO L226 Difference]: Without dead ends: 70 [2022-11-23 03:06:42,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=370, Invalid=1610, Unknown=0, NotChecked=0, Total=1980 [2022-11-23 03:06:42,696 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 120 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:42,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 119 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:06:42,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-23 03:06:42,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 61. [2022-11-23 03:06:42,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 60 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:42,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2022-11-23 03:06:42,702 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 29 [2022-11-23 03:06:42,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:42,703 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2022-11-23 03:06:42,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 31 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) [2022-11-23 03:06:42,703 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2022-11-23 03:06:42,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-23 03:06:42,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:42,704 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-23 03:06:42,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 03:06:42,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-23 03:06:42,905 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:42,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:42,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1492176557, now seen corresponding path program 2 times [2022-11-23 03:06:42,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:42,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826874744] [2022-11-23 03:06:42,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:42,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:43,075 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:43,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:43,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826874744] [2022-11-23 03:06:43,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826874744] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:06:43,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303241358] [2022-11-23 03:06:43,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:06:43,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:43,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:43,083 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:06:43,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 03:06:43,153 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:06:43,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:06:43,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 03:06:43,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:06:43,219 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:43,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:06:43,426 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:43,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303241358] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:06:43,427 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:06:43,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-11-23 03:06:43,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185020522] [2022-11-23 03:06:43,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:06:43,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-23 03:06:43,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:43,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-23 03:06:43,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-11-23 03:06:43,429 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand has 22 states, 21 states have (on average 3.142857142857143) internal successors, (66), 22 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) [2022-11-23 03:06:43,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:43,672 INFO L93 Difference]: Finished difference Result 110 states and 115 transitions. [2022-11-23 03:06:43,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 03:06:43,673 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.142857142857143) internal successors, (66), 22 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 34 [2022-11-23 03:06:43,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:43,674 INFO L225 Difference]: With dead ends: 110 [2022-11-23 03:06:43,674 INFO L226 Difference]: Without dead ends: 109 [2022-11-23 03:06:43,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2022-11-23 03:06:43,675 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 102 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:43,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 99 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:06:43,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-23 03:06:43,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 84. [2022-11-23 03:06:43,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 80 states have (on average 1.2125) internal successors, (97), 83 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:43,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 97 transitions. [2022-11-23 03:06:43,683 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 97 transitions. Word has length 34 [2022-11-23 03:06:43,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:43,683 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 97 transitions. [2022-11-23 03:06:43,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.142857142857143) internal successors, (66), 22 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) [2022-11-23 03:06:43,683 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 97 transitions. [2022-11-23 03:06:43,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-23 03:06:43,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:43,684 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1] [2022-11-23 03:06:43,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 03:06:43,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:43,885 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:43,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:43,886 INFO L85 PathProgramCache]: Analyzing trace with hash -537403921, now seen corresponding path program 2 times [2022-11-23 03:06:43,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:43,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125533170] [2022-11-23 03:06:43,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:43,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:44,106 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:44,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:44,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125533170] [2022-11-23 03:06:44,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125533170] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:06:44,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545886496] [2022-11-23 03:06:44,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:06:44,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:44,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:44,108 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:06:44,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 03:06:44,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:06:44,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:06:44,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 03:06:44,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:06:44,230 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:44,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:06:44,452 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:44,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545886496] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:06:44,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:06:44,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-11-23 03:06:44,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973923379] [2022-11-23 03:06:44,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:06:44,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-23 03:06:44,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:44,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-23 03:06:44,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-11-23 03:06:44,456 INFO L87 Difference]: Start difference. First operand 84 states and 97 transitions. Second operand has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 22 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) [2022-11-23 03:06:44,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:44,719 INFO L93 Difference]: Finished difference Result 107 states and 112 transitions. [2022-11-23 03:06:44,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 03:06:44,720 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 22 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 36 [2022-11-23 03:06:44,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:44,721 INFO L225 Difference]: With dead ends: 107 [2022-11-23 03:06:44,721 INFO L226 Difference]: Without dead ends: 106 [2022-11-23 03:06:44,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2022-11-23 03:06:44,722 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 79 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:44,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 117 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:06:44,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-23 03:06:44,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 86. [2022-11-23 03:06:44,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.146341463414634) internal successors, (94), 85 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:44,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2022-11-23 03:06:44,730 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 36 [2022-11-23 03:06:44,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:44,730 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2022-11-23 03:06:44,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 22 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) [2022-11-23 03:06:44,730 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2022-11-23 03:06:44,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-23 03:06:44,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:44,731 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-23 03:06:44,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 03:06:44,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:44,932 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:44,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:44,933 INFO L85 PathProgramCache]: Analyzing trace with hash 520347689, now seen corresponding path program 2 times [2022-11-23 03:06:44,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:44,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853205803] [2022-11-23 03:06:44,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:44,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:45,031 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:45,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:45,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853205803] [2022-11-23 03:06:45,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853205803] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:06:45,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850173839] [2022-11-23 03:06:45,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:06:45,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:45,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:45,034 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:06:45,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 03:06:45,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:06:45,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:06:45,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 03:06:45,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:06:45,169 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:45,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:06:45,286 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:45,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850173839] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:06:45,286 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:06:45,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-23 03:06:45,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189577092] [2022-11-23 03:06:45,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:06:45,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 03:06:45,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:45,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 03:06:45,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:06:45,288 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:45,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:45,343 INFO L93 Difference]: Finished difference Result 103 states and 108 transitions. [2022-11-23 03:06:45,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:06:45,344 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 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 37 [2022-11-23 03:06:45,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:45,344 INFO L225 Difference]: With dead ends: 103 [2022-11-23 03:06:45,345 INFO L226 Difference]: Without dead ends: 102 [2022-11-23 03:06:45,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:06:45,346 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 35 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:45,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 102 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:06:45,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-23 03:06:45,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 87. [2022-11-23 03:06:45,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 83 states have (on average 1.0843373493975903) internal successors, (90), 86 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:45,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2022-11-23 03:06:45,354 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 37 [2022-11-23 03:06:45,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:45,355 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2022-11-23 03:06:45,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:45,355 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2022-11-23 03:06:45,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 03:06:45,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:45,356 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:45,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 03:06:45,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:45,563 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:45,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:45,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1591035072, now seen corresponding path program 3 times [2022-11-23 03:06:45,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:45,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840732] [2022-11-23 03:06:45,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:45,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:45,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:45,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840732] [2022-11-23 03:06:45,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840732] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:06:45,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862211539] [2022-11-23 03:06:45,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:06:45,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:45,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:45,931 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:06:45,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 03:06:46,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-23 03:06:46,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:06:46,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-23 03:06:46,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:06:46,692 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:46,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:06:47,395 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:47,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862211539] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:06:47,395 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:06:47,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23, 23] total 62 [2022-11-23 03:06:47,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772291349] [2022-11-23 03:06:47,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:06:47,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-11-23 03:06:47,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:47,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-11-23 03:06:47,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=591, Invalid=3315, Unknown=0, NotChecked=0, Total=3906 [2022-11-23 03:06:47,399 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand has 63 states, 62 states have (on average 2.693548387096774) internal successors, (167), 63 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:48,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:48,469 INFO L93 Difference]: Finished difference Result 165 states and 172 transitions. [2022-11-23 03:06:48,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-23 03:06:48,470 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 2.693548387096774) internal successors, (167), 63 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-11-23 03:06:48,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:48,471 INFO L225 Difference]: With dead ends: 165 [2022-11-23 03:06:48,471 INFO L226 Difference]: Without dead ends: 132 [2022-11-23 03:06:48,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3544 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1476, Invalid=7454, Unknown=0, NotChecked=0, Total=8930 [2022-11-23 03:06:48,476 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 279 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:48,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 153 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 03:06:48,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-23 03:06:48,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 117. [2022-11-23 03:06:48,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 113 states have (on average 1.1415929203539823) internal successors, (129), 116 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:48,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 129 transitions. [2022-11-23 03:06:48,486 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 129 transitions. Word has length 57 [2022-11-23 03:06:48,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:48,487 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 129 transitions. [2022-11-23 03:06:48,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 2.693548387096774) internal successors, (167), 63 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:48,487 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 129 transitions. [2022-11-23 03:06:48,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-23 03:06:48,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:48,489 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-11-23 03:06:48,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-11-23 03:06:48,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:48,695 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:48,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:48,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1429047789, now seen corresponding path program 3 times [2022-11-23 03:06:48,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:48,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018184501] [2022-11-23 03:06:48,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:48,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:49,236 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:49,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:49,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018184501] [2022-11-23 03:06:49,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018184501] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:06:49,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821707146] [2022-11-23 03:06:49,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:06:49,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:49,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:49,239 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:06:49,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 03:06:49,368 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-23 03:06:49,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:06:49,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-23 03:06:49,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:06:49,519 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:49,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:06:50,322 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:50,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821707146] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:06:50,323 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:06:50,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2022-11-23 03:06:50,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992122012] [2022-11-23 03:06:50,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:06:50,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-23 03:06:50,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:50,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-23 03:06:50,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-11-23 03:06:50,326 INFO L87 Difference]: Start difference. First operand 117 states and 129 transitions. Second operand has 46 states, 45 states have (on average 3.3333333333333335) internal successors, (150), 46 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:51,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:51,108 INFO L93 Difference]: Finished difference Result 226 states and 237 transitions. [2022-11-23 03:06:51,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-23 03:06:51,109 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.3333333333333335) internal successors, (150), 46 states have internal predecessors, (150), 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 76 [2022-11-23 03:06:51,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:51,110 INFO L225 Difference]: With dead ends: 226 [2022-11-23 03:06:51,111 INFO L226 Difference]: Without dead ends: 225 [2022-11-23 03:06:51,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2022-11-23 03:06:51,114 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 304 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:51,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 215 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:06:51,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-11-23 03:06:51,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 168. [2022-11-23 03:06:51,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 164 states have (on average 1.201219512195122) internal successors, (197), 167 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:51,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 197 transitions. [2022-11-23 03:06:51,129 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 197 transitions. Word has length 76 [2022-11-23 03:06:51,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:51,131 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 197 transitions. [2022-11-23 03:06:51,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.3333333333333335) internal successors, (150), 46 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:51,131 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 197 transitions. [2022-11-23 03:06:51,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-23 03:06:51,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:51,133 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1] [2022-11-23 03:06:51,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-23 03:06:51,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:51,344 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:51,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:51,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1074607825, now seen corresponding path program 3 times [2022-11-23 03:06:51,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:51,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027129460] [2022-11-23 03:06:51,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:51,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:51,796 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:51,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:51,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027129460] [2022-11-23 03:06:51,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027129460] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:06:51,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991374884] [2022-11-23 03:06:51,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:06:51,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:51,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:51,798 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:06:51,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-23 03:06:51,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-23 03:06:51,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:06:51,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-23 03:06:51,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:06:52,078 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:52,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:06:52,868 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:52,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991374884] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:06:52,868 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:06:52,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2022-11-23 03:06:52,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024967762] [2022-11-23 03:06:52,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:06:52,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-23 03:06:52,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:52,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-23 03:06:52,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-11-23 03:06:52,871 INFO L87 Difference]: Start difference. First operand 168 states and 197 transitions. Second operand has 46 states, 45 states have (on average 3.422222222222222) internal successors, (154), 46 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:53,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:53,555 INFO L93 Difference]: Finished difference Result 217 states and 228 transitions. [2022-11-23 03:06:53,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-23 03:06:53,556 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.422222222222222) internal successors, (154), 46 states have internal predecessors, (154), 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 78 [2022-11-23 03:06:53,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:53,557 INFO L225 Difference]: With dead ends: 217 [2022-11-23 03:06:53,557 INFO L226 Difference]: Without dead ends: 216 [2022-11-23 03:06:53,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2022-11-23 03:06:53,560 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 256 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:53,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 173 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:06:53,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-23 03:06:53,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 170. [2022-11-23 03:06:53,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 166 states have (on average 1.1325301204819278) internal successors, (188), 169 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:53,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 188 transitions. [2022-11-23 03:06:53,572 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 188 transitions. Word has length 78 [2022-11-23 03:06:53,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:53,573 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 188 transitions. [2022-11-23 03:06:53,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.422222222222222) internal successors, (154), 46 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:53,573 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 188 transitions. [2022-11-23 03:06:53,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-23 03:06:53,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:53,574 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1] [2022-11-23 03:06:53,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-23 03:06:53,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:53,781 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:53,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:53,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1046895849, now seen corresponding path program 3 times [2022-11-23 03:06:53,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:53,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517267093] [2022-11-23 03:06:53,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:53,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:54,065 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:54,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:54,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517267093] [2022-11-23 03:06:54,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517267093] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:06:54,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511388231] [2022-11-23 03:06:54,066 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:06:54,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:54,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:54,067 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:06:54,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-23 03:06:54,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-23 03:06:54,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:06:54,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 03:06:54,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:06:54,335 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:54,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:06:54,700 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:54,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511388231] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:06:54,701 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:06:54,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-23 03:06:54,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339121677] [2022-11-23 03:06:54,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:06:54,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-23 03:06:54,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:06:54,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-23 03:06:54,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-23 03:06:54,703 INFO L87 Difference]: Start difference. First operand 170 states and 188 transitions. Second operand has 24 states, 23 states have (on average 6.782608695652174) internal successors, (156), 24 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:54,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:06:54,817 INFO L93 Difference]: Finished difference Result 207 states and 218 transitions. [2022-11-23 03:06:54,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 03:06:54,818 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.782608695652174) internal successors, (156), 24 states have internal predecessors, (156), 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 79 [2022-11-23 03:06:54,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:06:54,820 INFO L225 Difference]: With dead ends: 207 [2022-11-23 03:06:54,820 INFO L226 Difference]: Without dead ends: 206 [2022-11-23 03:06:54,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-23 03:06:54,821 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 87 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:06:54,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 193 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:06:54,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-23 03:06:54,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 171. [2022-11-23 03:06:54,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 167 states have (on average 1.0658682634730539) internal successors, (178), 170 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:54,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 178 transitions. [2022-11-23 03:06:54,835 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 178 transitions. Word has length 79 [2022-11-23 03:06:54,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:06:54,836 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 178 transitions. [2022-11-23 03:06:54,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.782608695652174) internal successors, (156), 24 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:06:54,836 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 178 transitions. [2022-11-23 03:06:54,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-23 03:06:54,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:06:54,838 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:06:54,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-23 03:06:55,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-23 03:06:55,051 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:06:55,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:06:55,051 INFO L85 PathProgramCache]: Analyzing trace with hash 236104768, now seen corresponding path program 4 times [2022-11-23 03:06:55,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:06:55,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631722489] [2022-11-23 03:06:55,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:06:55,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:06:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:06:56,059 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:56,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:06:56,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631722489] [2022-11-23 03:06:56,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631722489] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:06:56,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615861447] [2022-11-23 03:06:56,060 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 03:06:56,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:06:56,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:06:56,061 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:06:56,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-23 03:06:56,167 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 03:06:56,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:06:56,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 63 conjunts are in the unsatisfiable core [2022-11-23 03:06:56,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:06:58,033 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:06:58,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:07:00,201 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:00,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615861447] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:07:00,202 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:07:00,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 47, 47] total 126 [2022-11-23 03:07:00,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911772252] [2022-11-23 03:07:00,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:07:00,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2022-11-23 03:07:00,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:07:00,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2022-11-23 03:07:00,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2267, Invalid=13735, Unknown=0, NotChecked=0, Total=16002 [2022-11-23 03:07:00,209 INFO L87 Difference]: Start difference. First operand 171 states and 178 transitions. Second operand has 127 states, 126 states have (on average 2.6587301587301586) internal successors, (335), 127 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:03,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:07:03,164 INFO L93 Difference]: Finished difference Result 321 states and 336 transitions. [2022-11-23 03:07:03,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-11-23 03:07:03,164 INFO L78 Accepts]: Start accepts. Automaton has has 127 states, 126 states have (on average 2.6587301587301586) internal successors, (335), 127 states have internal predecessors, (335), 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 113 [2022-11-23 03:07:03,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:07:03,168 INFO L225 Difference]: With dead ends: 321 [2022-11-23 03:07:03,168 INFO L226 Difference]: Without dead ends: 256 [2022-11-23 03:07:03,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16296 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=5896, Invalid=31934, Unknown=0, NotChecked=0, Total=37830 [2022-11-23 03:07:03,177 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 726 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:07:03,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 228 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 03:07:03,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-11-23 03:07:03,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 229. [2022-11-23 03:07:03,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 225 states have (on average 1.1244444444444444) internal successors, (253), 228 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:03,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 253 transitions. [2022-11-23 03:07:03,208 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 253 transitions. Word has length 113 [2022-11-23 03:07:03,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:07:03,209 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 253 transitions. [2022-11-23 03:07:03,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 127 states, 126 states have (on average 2.6587301587301586) internal successors, (335), 127 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:03,210 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 253 transitions. [2022-11-23 03:07:03,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-23 03:07:03,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:07:03,211 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2022-11-23 03:07:03,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-23 03:07:03,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-23 03:07:03,412 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:07:03,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:07:03,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1207906195, now seen corresponding path program 4 times [2022-11-23 03:07:03,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:07:03,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461244367] [2022-11-23 03:07:03,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:07:03,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:07:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:07:05,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:05,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:07:05,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461244367] [2022-11-23 03:07:05,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461244367] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:07:05,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210208280] [2022-11-23 03:07:05,309 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 03:07:05,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:07:05,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:07:05,313 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:07:05,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-23 03:07:05,431 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 03:07:05,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:07:05,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-23 03:07:05,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:07:05,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:05,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:07:08,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:08,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210208280] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:07:08,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:07:08,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2022-11-23 03:07:08,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056980339] [2022-11-23 03:07:08,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:07:08,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-11-23 03:07:08,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:07:08,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-11-23 03:07:08,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-11-23 03:07:08,228 INFO L87 Difference]: Start difference. First operand 229 states and 253 transitions. Second operand has 94 states, 93 states have (on average 3.4193548387096775) internal successors, (318), 94 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:10,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:07:10,375 INFO L93 Difference]: Finished difference Result 458 states and 481 transitions. [2022-11-23 03:07:10,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-11-23 03:07:10,376 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.4193548387096775) internal successors, (318), 94 states have internal predecessors, (318), 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 160 [2022-11-23 03:07:10,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:07:10,378 INFO L225 Difference]: With dead ends: 458 [2022-11-23 03:07:10,378 INFO L226 Difference]: Without dead ends: 457 [2022-11-23 03:07:10,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2022-11-23 03:07:10,381 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 697 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:07:10,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 367 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 03:07:10,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-11-23 03:07:10,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 336. [2022-11-23 03:07:10,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 332 states have (on average 1.1957831325301205) internal successors, (397), 335 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:10,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 397 transitions. [2022-11-23 03:07:10,403 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 397 transitions. Word has length 160 [2022-11-23 03:07:10,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:07:10,403 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 397 transitions. [2022-11-23 03:07:10,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.4193548387096775) internal successors, (318), 94 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:10,404 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 397 transitions. [2022-11-23 03:07:10,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-23 03:07:10,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:07:10,406 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 1, 1, 1, 1] [2022-11-23 03:07:10,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-23 03:07:10,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-23 03:07:10,611 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:07:10,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:07:10,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1156681809, now seen corresponding path program 4 times [2022-11-23 03:07:10,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:07:10,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100253152] [2022-11-23 03:07:10,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:07:10,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:07:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:07:12,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:12,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:07:12,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100253152] [2022-11-23 03:07:12,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100253152] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:07:12,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176770138] [2022-11-23 03:07:12,246 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 03:07:12,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:07:12,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:07:12,247 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:07:12,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-23 03:07:12,361 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 03:07:12,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:07:12,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-23 03:07:12,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:07:12,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:12,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:07:14,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:14,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176770138] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:07:14,820 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:07:14,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2022-11-23 03:07:14,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446689374] [2022-11-23 03:07:14,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:07:14,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-11-23 03:07:14,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:07:14,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-11-23 03:07:14,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-11-23 03:07:14,824 INFO L87 Difference]: Start difference. First operand 336 states and 397 transitions. Second operand has 94 states, 93 states have (on average 3.4623655913978495) internal successors, (322), 94 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:16,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:07:16,757 INFO L93 Difference]: Finished difference Result 437 states and 460 transitions. [2022-11-23 03:07:16,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-11-23 03:07:16,758 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.4623655913978495) internal successors, (322), 94 states have internal predecessors, (322), 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 162 [2022-11-23 03:07:16,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:07:16,759 INFO L225 Difference]: With dead ends: 437 [2022-11-23 03:07:16,759 INFO L226 Difference]: Without dead ends: 436 [2022-11-23 03:07:16,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2022-11-23 03:07:16,761 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 563 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:07:16,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 316 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 03:07:16,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-11-23 03:07:16,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 338. [2022-11-23 03:07:16,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 334 states have (on average 1.125748502994012) internal successors, (376), 337 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:16,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 376 transitions. [2022-11-23 03:07:16,784 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 376 transitions. Word has length 162 [2022-11-23 03:07:16,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:07:16,784 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 376 transitions. [2022-11-23 03:07:16,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.4623655913978495) internal successors, (322), 94 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:16,785 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 376 transitions. [2022-11-23 03:07:16,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-23 03:07:16,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:07:16,787 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 1, 1, 1, 1] [2022-11-23 03:07:16,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-11-23 03:07:16,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-23 03:07:16,992 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:07:16,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:07:16,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1497397655, now seen corresponding path program 4 times [2022-11-23 03:07:16,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:07:16,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269330565] [2022-11-23 03:07:16,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:07:16,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:07:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:07:17,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:17,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:07:17,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269330565] [2022-11-23 03:07:17,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269330565] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:07:17,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309235787] [2022-11-23 03:07:17,633 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 03:07:17,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:07:17,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:07:17,634 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:07:17,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-23 03:07:17,733 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 03:07:17,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:07:17,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-23 03:07:17,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:07:17,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:17,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:07:18,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:18,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309235787] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:07:18,864 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:07:18,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-23 03:07:18,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641010374] [2022-11-23 03:07:18,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:07:18,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-23 03:07:18,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:07:18,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-23 03:07:18,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-23 03:07:18,867 INFO L87 Difference]: Start difference. First operand 338 states and 376 transitions. Second operand has 48 states, 47 states have (on average 6.8936170212765955) internal successors, (324), 48 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:19,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:07:19,068 INFO L93 Difference]: Finished difference Result 415 states and 438 transitions. [2022-11-23 03:07:19,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-23 03:07:19,069 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.8936170212765955) internal successors, (324), 48 states have internal predecessors, (324), 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 163 [2022-11-23 03:07:19,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:07:19,071 INFO L225 Difference]: With dead ends: 415 [2022-11-23 03:07:19,071 INFO L226 Difference]: Without dead ends: 414 [2022-11-23 03:07:19,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-23 03:07:19,072 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 294 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:07:19,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 366 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:07:19,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-11-23 03:07:19,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 339. [2022-11-23 03:07:19,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 335 states have (on average 1.0567164179104478) internal successors, (354), 338 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:19,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 354 transitions. [2022-11-23 03:07:19,091 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 354 transitions. Word has length 163 [2022-11-23 03:07:19,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:07:19,091 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 354 transitions. [2022-11-23 03:07:19,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.8936170212765955) internal successors, (324), 48 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:19,091 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 354 transitions. [2022-11-23 03:07:19,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-23 03:07:19,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:07:19,094 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:07:19,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-11-23 03:07:19,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:07:19,308 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:07:19,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:07:19,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1689416128, now seen corresponding path program 5 times [2022-11-23 03:07:19,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:07:19,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298841417] [2022-11-23 03:07:19,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:07:19,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:07:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:07:22,455 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 3286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:22,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:07:22,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298841417] [2022-11-23 03:07:22,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298841417] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:07:22,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208670312] [2022-11-23 03:07:22,455 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 03:07:22,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:07:22,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:07:22,459 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:07:22,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-23 03:07:22,757 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-11-23 03:07:22,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:07:22,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 127 conjunts are in the unsatisfiable core [2022-11-23 03:07:22,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:07:26,962 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 3286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:26,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:07:32,917 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 3286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:32,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208670312] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:07:32,917 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:07:32,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 95, 95] total 254 [2022-11-23 03:07:32,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938686668] [2022-11-23 03:07:32,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:07:32,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 255 states [2022-11-23 03:07:32,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:07:32,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 255 interpolants. [2022-11-23 03:07:32,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8883, Invalid=55887, Unknown=0, NotChecked=0, Total=64770 [2022-11-23 03:07:32,925 INFO L87 Difference]: Start difference. First operand 339 states and 354 transitions. Second operand has 255 states, 254 states have (on average 2.641732283464567) internal successors, (671), 255 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:42,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:07:42,080 INFO L93 Difference]: Finished difference Result 633 states and 664 transitions. [2022-11-23 03:07:42,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-11-23 03:07:42,081 INFO L78 Accepts]: Start accepts. Automaton has has 255 states, 254 states have (on average 2.641732283464567) internal successors, (671), 255 states have internal predecessors, (671), 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 225 [2022-11-23 03:07:42,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:07:42,084 INFO L225 Difference]: With dead ends: 633 [2022-11-23 03:07:42,084 INFO L226 Difference]: Without dead ends: 504 [2022-11-23 03:07:42,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 393 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69640 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=23568, Invalid=132062, Unknown=0, NotChecked=0, Total=155630 [2022-11-23 03:07:42,098 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1486 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:07:42,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 384 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 03:07:42,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-11-23 03:07:42,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 453. [2022-11-23 03:07:42,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 449 states have (on average 1.1158129175946547) internal successors, (501), 452 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:42,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 501 transitions. [2022-11-23 03:07:42,126 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 501 transitions. Word has length 225 [2022-11-23 03:07:42,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:07:42,126 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 501 transitions. [2022-11-23 03:07:42,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 255 states, 254 states have (on average 2.641732283464567) internal successors, (671), 255 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:07:42,127 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 501 transitions. [2022-11-23 03:07:42,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-23 03:07:42,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:07:42,133 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2022-11-23 03:07:42,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-23 03:07:42,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:07:42,347 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:07:42,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:07:42,348 INFO L85 PathProgramCache]: Analyzing trace with hash -734093971, now seen corresponding path program 5 times [2022-11-23 03:07:42,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:07:42,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967509550] [2022-11-23 03:07:42,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:07:42,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:07:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:07:48,599 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:48,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:07:48,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967509550] [2022-11-23 03:07:48,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967509550] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:07:48,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311327891] [2022-11-23 03:07:48,600 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 03:07:48,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:07:48,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:07:48,601 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:07:48,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-23 03:07:49,251 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-23 03:07:49,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:07:49,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-23 03:07:49,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:07:49,877 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:49,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:07:58,211 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:07:58,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311327891] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:07:58,211 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:07:58,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2022-11-23 03:07:58,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804243511] [2022-11-23 03:07:58,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:07:58,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-11-23 03:07:58,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:07:58,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-11-23 03:07:58,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-11-23 03:07:58,218 INFO L87 Difference]: Start difference. First operand 453 states and 501 transitions. Second operand has 190 states, 189 states have (on average 3.4603174603174605) internal successors, (654), 190 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:08:06,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:08:06,038 INFO L93 Difference]: Finished difference Result 922 states and 969 transitions. [2022-11-23 03:08:06,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-11-23 03:08:06,039 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 3.4603174603174605) internal successors, (654), 190 states have internal predecessors, (654), 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 328 [2022-11-23 03:08:06,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:08:06,043 INFO L225 Difference]: With dead ends: 922 [2022-11-23 03:08:06,043 INFO L226 Difference]: Without dead ends: 921 [2022-11-23 03:08:06,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 843 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2022-11-23 03:08:06,051 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1821 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1821 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:08:06,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1821 Valid, 625 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 03:08:06,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-11-23 03:08:06,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 672. [2022-11-23 03:08:06,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 668 states have (on average 1.1931137724550898) internal successors, (797), 671 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:08:06,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 797 transitions. [2022-11-23 03:08:06,093 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 797 transitions. Word has length 328 [2022-11-23 03:08:06,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:08:06,094 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 797 transitions. [2022-11-23 03:08:06,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 3.4603174603174605) internal successors, (654), 190 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:08:06,095 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 797 transitions. [2022-11-23 03:08:06,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-11-23 03:08:06,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:08:06,101 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 1, 1, 1, 1] [2022-11-23 03:08:06,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-23 03:08:06,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:08:06,307 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:08:06,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:08:06,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1089667921, now seen corresponding path program 5 times [2022-11-23 03:08:06,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:08:06,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524737540] [2022-11-23 03:08:06,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:08:06,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:08:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:08:12,455 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:08:12,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:08:12,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524737540] [2022-11-23 03:08:12,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524737540] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:08:12,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016203559] [2022-11-23 03:08:12,456 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 03:08:12,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:08:12,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:08:12,457 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:08:12,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-23 03:08:13,121 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-23 03:08:13,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:08:13,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 95 conjunts are in the unsatisfiable core [2022-11-23 03:08:13,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:08:13,749 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:08:13,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:08:22,187 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:08:22,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016203559] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:08:22,187 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:08:22,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2022-11-23 03:08:22,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726860036] [2022-11-23 03:08:22,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:08:22,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-11-23 03:08:22,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:08:22,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-11-23 03:08:22,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-11-23 03:08:22,194 INFO L87 Difference]: Start difference. First operand 672 states and 797 transitions. Second operand has 190 states, 189 states have (on average 3.4814814814814814) internal successors, (658), 190 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:08:30,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:08:30,171 INFO L93 Difference]: Finished difference Result 877 states and 924 transitions. [2022-11-23 03:08:30,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-11-23 03:08:30,172 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 3.4814814814814814) internal successors, (658), 190 states have internal predecessors, (658), 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 330 [2022-11-23 03:08:30,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:08:30,176 INFO L225 Difference]: With dead ends: 877 [2022-11-23 03:08:30,176 INFO L226 Difference]: Without dead ends: 876 [2022-11-23 03:08:30,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2022-11-23 03:08:30,185 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1307 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:08:30,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 590 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 03:08:30,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-11-23 03:08:30,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 674. [2022-11-23 03:08:30,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 670 states have (on average 1.1223880597014926) internal successors, (752), 673 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:08:30,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 752 transitions. [2022-11-23 03:08:30,289 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 752 transitions. Word has length 330 [2022-11-23 03:08:30,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:08:30,291 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 752 transitions. [2022-11-23 03:08:30,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 3.4814814814814814) internal successors, (658), 190 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:08:30,292 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 752 transitions. [2022-11-23 03:08:30,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-11-23 03:08:30,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:08:30,298 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 1, 1, 1, 1] [2022-11-23 03:08:30,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-23 03:08:30,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-11-23 03:08:30,506 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:08:30,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:08:30,507 INFO L85 PathProgramCache]: Analyzing trace with hash 580032873, now seen corresponding path program 5 times [2022-11-23 03:08:30,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:08:30,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897673010] [2022-11-23 03:08:30,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:08:30,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:08:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:08:33,062 INFO L134 CoverageAnalysis]: Checked inductivity of 7521 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:08:33,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:08:33,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897673010] [2022-11-23 03:08:33,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897673010] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:08:33,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425441292] [2022-11-23 03:08:33,063 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 03:08:33,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:08:33,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:08:33,064 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:08:33,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-23 03:08:33,692 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-23 03:08:33,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:08:33,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-23 03:08:33,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:08:34,222 INFO L134 CoverageAnalysis]: Checked inductivity of 7521 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:08:34,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:08:37,872 INFO L134 CoverageAnalysis]: Checked inductivity of 7521 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:08:37,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425441292] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:08:37,872 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:08:37,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-11-23 03:08:37,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937415966] [2022-11-23 03:08:37,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:08:37,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-23 03:08:37,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:08:37,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-23 03:08:37,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-23 03:08:37,878 INFO L87 Difference]: Start difference. First operand 674 states and 752 transitions. Second operand has 96 states, 95 states have (on average 6.947368421052632) internal successors, (660), 96 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:08:38,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:08:38,578 INFO L93 Difference]: Finished difference Result 831 states and 878 transitions. [2022-11-23 03:08:38,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-23 03:08:38,579 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.947368421052632) internal successors, (660), 96 states have internal predecessors, (660), 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 331 [2022-11-23 03:08:38,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:08:38,582 INFO L225 Difference]: With dead ends: 831 [2022-11-23 03:08:38,582 INFO L226 Difference]: Without dead ends: 830 [2022-11-23 03:08:38,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 708 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-23 03:08:38,585 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 694 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:08:38,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 702 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 03:08:38,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2022-11-23 03:08:38,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 675. [2022-11-23 03:08:38,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 671 states have (on average 1.052160953800298) internal successors, (706), 674 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:08:38,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 706 transitions. [2022-11-23 03:08:38,623 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 706 transitions. Word has length 331 [2022-11-23 03:08:38,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:08:38,623 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 706 transitions. [2022-11-23 03:08:38,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.947368421052632) internal successors, (660), 96 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:08:38,624 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 706 transitions. [2022-11-23 03:08:38,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2022-11-23 03:08:38,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:08:38,627 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:08:38,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-23 03:08:38,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-11-23 03:08:38,835 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:08:38,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:08:38,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1620094400, now seen corresponding path program 6 times [2022-11-23 03:08:38,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:08:38,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170097703] [2022-11-23 03:08:38,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:08:38,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:08:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:08:49,181 INFO L134 CoverageAnalysis]: Checked inductivity of 13734 backedges. 0 proven. 13734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:08:49,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:08:49,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170097703] [2022-11-23 03:08:49,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170097703] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:08:49,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953865776] [2022-11-23 03:08:49,182 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 03:08:49,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:08:49,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:08:49,184 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:08:49,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-23 03:08:50,222 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2022-11-23 03:08:50,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:08:50,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 130 conjunts are in the unsatisfiable core [2022-11-23 03:08:50,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:09:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 13734 backedges. 0 proven. 13734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:09:03,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:09:27,409 INFO L134 CoverageAnalysis]: Checked inductivity of 13734 backedges. 0 proven. 13734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:09:27,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953865776] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:09:27,410 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:09:27,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 130, 130] total 388 [2022-11-23 03:09:27,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987191154] [2022-11-23 03:09:27,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:09:27,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 389 states [2022-11-23 03:09:27,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:09:27,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 389 interpolants. [2022-11-23 03:09:27,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20889, Invalid=130043, Unknown=0, NotChecked=0, Total=150932 [2022-11-23 03:09:27,433 INFO L87 Difference]: Start difference. First operand 675 states and 706 transitions. Second operand has 389 states, 388 states have (on average 3.461340206185567) internal successors, (1343), 389 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:42,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:42,615 INFO L93 Difference]: Finished difference Result 1229 states and 1323 transitions. [2022-11-23 03:10:42,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 446 states. [2022-11-23 03:10:42,617 INFO L78 Accepts]: Start accepts. Automaton has has 389 states, 388 states have (on average 3.461340206185567) internal successors, (1343), 389 states have internal predecessors, (1343), 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 449 [2022-11-23 03:10:42,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:42,632 INFO L225 Difference]: With dead ends: 1229 [2022-11-23 03:10:42,632 INFO L226 Difference]: Without dead ends: 971 [2022-11-23 03:10:42,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1407 GetRequests, 639 SyntacticMatches, 0 SemanticMatches, 768 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166199 ImplicationChecksByTransitivity, 109.7s TimeCoverageRelationStatistics Valid=109693, Invalid=482437, Unknown=0, NotChecked=0, Total=592130 [2022-11-23 03:10:42,674 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3915 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3915 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:42,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3915 Valid, 794 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-23 03:10:42,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2022-11-23 03:10:42,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 901. [2022-11-23 03:10:42,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 897 states have (on average 1.0758082497212933) internal successors, (965), 900 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:42,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 965 transitions. [2022-11-23 03:10:42,724 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 965 transitions. Word has length 449 [2022-11-23 03:10:42,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:42,725 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 965 transitions. [2022-11-23 03:10:42,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 389 states, 388 states have (on average 3.461340206185567) internal successors, (1343), 389 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:42,726 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 965 transitions. [2022-11-23 03:10:42,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2022-11-23 03:10:42,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:42,731 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2022-11-23 03:10:42,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:42,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-11-23 03:10:42,940 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:10:42,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:42,940 INFO L85 PathProgramCache]: Analyzing trace with hash -929613971, now seen corresponding path program 6 times [2022-11-23 03:10:42,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:42,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869771358] [2022-11-23 03:10:42,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:42,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:11:09,780 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:11:09,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:11:09,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869771358] [2022-11-23 03:11:09,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869771358] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:11:09,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687164316] [2022-11-23 03:11:09,781 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 03:11:09,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:11:09,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:11:09,783 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:11:09,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-23 03:11:12,570 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-23 03:11:12,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:11:12,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 1636 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-23 03:11:12,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:11:13,806 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:11:13,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:11:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:11:49,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687164316] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:11:49,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:11:49,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 381 [2022-11-23 03:11:49,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44114099] [2022-11-23 03:11:49,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:11:49,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-11-23 03:11:49,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:11:49,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-11-23 03:11:49,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2022-11-23 03:11:49,245 INFO L87 Difference]: Start difference. First operand 901 states and 965 transitions. Second operand has 382 states, 381 states have (on average 3.4803149606299213) internal successors, (1326), 382 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:12:31,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:12:31,106 INFO L93 Difference]: Finished difference Result 1818 states and 1913 transitions. [2022-11-23 03:12:31,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2022-11-23 03:12:31,107 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 3.4803149606299213) internal successors, (1326), 382 states have internal predecessors, (1326), 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 664 [2022-11-23 03:12:31,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:12:31,113 INFO L225 Difference]: With dead ends: 1818 [2022-11-23 03:12:31,113 INFO L226 Difference]: Without dead ends: 1817 [2022-11-23 03:12:31,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1707 GetRequests, 1137 SyntacticMatches, 0 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71254 ImplicationChecksByTransitivity, 71.4s TimeCoverageRelationStatistics Valid=91296, Invalid=235316, Unknown=0, NotChecked=0, Total=326612 [2022-11-23 03:12:31,133 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3602 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3602 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:12:31,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3602 Valid, 1138 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-23 03:12:31,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2022-11-23 03:12:31,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1344. [2022-11-23 03:12:31,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1340 states have (on average 1.1679104477611941) internal successors, (1565), 1343 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:12:31,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1565 transitions. [2022-11-23 03:12:31,205 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1565 transitions. Word has length 664 [2022-11-23 03:12:31,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:12:31,206 INFO L495 AbstractCegarLoop]: Abstraction has 1344 states and 1565 transitions. [2022-11-23 03:12:31,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 3.4803149606299213) internal successors, (1326), 382 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:12:31,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1565 transitions. [2022-11-23 03:12:31,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2022-11-23 03:12:31,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:12:31,213 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 94, 94, 1, 1, 1, 1] [2022-11-23 03:12:31,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-23 03:12:31,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-23 03:12:31,423 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:12:31,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:12:31,424 INFO L85 PathProgramCache]: Analyzing trace with hash -180633751, now seen corresponding path program 6 times [2022-11-23 03:12:31,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:12:31,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704981102] [2022-11-23 03:12:31,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:12:31,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:12:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:12:40,570 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 0 proven. 31161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:12:40,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:12:40,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704981102] [2022-11-23 03:12:40,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704981102] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:12:40,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783313232] [2022-11-23 03:12:40,570 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 03:12:40,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:12:40,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:12:40,574 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:12:40,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-23 03:12:43,958 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-23 03:12:43,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:12:43,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-23 03:12:43,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:12:45,170 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 0 proven. 31161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:12:45,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:12:59,646 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 0 proven. 31161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:12:59,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783313232] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:12:59,647 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:12:59,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-11-23 03:12:59,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498020357] [2022-11-23 03:12:59,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:12:59,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-23 03:12:59,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:12:59,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-23 03:12:59,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-23 03:12:59,655 INFO L87 Difference]: Start difference. First operand 1344 states and 1565 transitions. Second operand has 192 states, 191 states have (on average 6.973821989528796) internal successors, (1332), 192 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:13:02,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:13:02,427 INFO L93 Difference]: Finished difference Result 1727 states and 1822 transitions. [2022-11-23 03:13:02,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-23 03:13:02,427 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.973821989528796) internal successors, (1332), 192 states have internal predecessors, (1332), 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 667 [2022-11-23 03:13:02,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:13:02,435 INFO L225 Difference]: With dead ends: 1727 [2022-11-23 03:13:02,435 INFO L226 Difference]: Without dead ends: 1726 [2022-11-23 03:13:02,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1428 GetRequests, 1238 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-23 03:13:02,441 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 1448 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:13:02,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 1383 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 03:13:02,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2022-11-23 03:13:02,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1347. [2022-11-23 03:13:02,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1343 states have (on average 1.0975428145941921) internal successors, (1474), 1346 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:13:02,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1474 transitions. [2022-11-23 03:13:02,516 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1474 transitions. Word has length 667 [2022-11-23 03:13:02,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:13:02,517 INFO L495 AbstractCegarLoop]: Abstraction has 1347 states and 1474 transitions. [2022-11-23 03:13:02,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.973821989528796) internal successors, (1332), 192 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:13:02,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1474 transitions. [2022-11-23 03:13:02,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 891 [2022-11-23 03:13:02,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:13:02,528 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 126, 126, 126, 1, 1, 1, 1] [2022-11-23 03:13:02,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-23 03:13:02,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-11-23 03:13:02,744 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:13:02,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:13:02,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1159320239, now seen corresponding path program 6 times [2022-11-23 03:13:02,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:13:02,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249642113] [2022-11-23 03:13:02,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:13:02,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:13:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:13:53,122 INFO L134 CoverageAnalysis]: Checked inductivity of 55755 backedges. 0 proven. 55755 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:13:53,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:13:53,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249642113] [2022-11-23 03:13:53,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249642113] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:13:53,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421791419] [2022-11-23 03:13:53,123 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 03:13:53,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:13:53,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:13:53,124 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:13:53,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-23 03:14:01,839 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 127 check-sat command(s) [2022-11-23 03:14:01,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:14:01,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 2186 conjuncts, 255 conjunts are in the unsatisfiable core [2022-11-23 03:14:01,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:14:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 55755 backedges. 0 proven. 55755 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:14:03,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:15:01,490 INFO L134 CoverageAnalysis]: Checked inductivity of 55755 backedges. 0 proven. 55755 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:15:01,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421791419] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:15:01,490 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:15:01,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [255, 255, 255] total 509 [2022-11-23 03:15:01,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238510001] [2022-11-23 03:15:01,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:15:01,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 510 states [2022-11-23 03:15:01,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:15:01,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 510 interpolants. [2022-11-23 03:15:01,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65279, Invalid=194311, Unknown=0, NotChecked=0, Total=259590 [2022-11-23 03:15:01,525 INFO L87 Difference]: Start difference. First operand 1347 states and 1474 transitions. Second operand has 510 states, 509 states have (on average 3.493123772102161) internal successors, (1778), 510 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:16:17,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:16:17,455 INFO L93 Difference]: Finished difference Result 2557 states and 2684 transitions. [2022-11-23 03:16:17,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 510 states. [2022-11-23 03:16:17,456 INFO L78 Accepts]: Start accepts. Automaton has has 510 states, 509 states have (on average 3.493123772102161) internal successors, (1778), 510 states have internal predecessors, (1778), 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 890 [2022-11-23 03:16:17,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:16:17,463 INFO L225 Difference]: With dead ends: 2557 [2022-11-23 03:16:17,463 INFO L226 Difference]: Without dead ends: 2556 [2022-11-23 03:16:17,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2287 GetRequests, 1525 SyntacticMatches, 0 SemanticMatches, 762 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127766 ImplicationChecksByTransitivity, 116.7s TimeCoverageRelationStatistics Valid=162688, Invalid=420244, Unknown=0, NotChecked=0, Total=582932 [2022-11-23 03:16:17,498 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 6788 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6788 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:16:17,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6788 Valid, 1526 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 03:16:17,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2022-11-23 03:16:17,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 1794. [2022-11-23 03:16:17,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1790 states have (on average 1.1441340782122904) internal successors, (2048), 1793 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:16:17,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2048 transitions. [2022-11-23 03:16:17,575 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2048 transitions. Word has length 890 [2022-11-23 03:16:17,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:16:17,576 INFO L495 AbstractCegarLoop]: Abstraction has 1794 states and 2048 transitions. [2022-11-23 03:16:17,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 510 states, 509 states have (on average 3.493123772102161) internal successors, (1778), 510 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:16:17,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2048 transitions. [2022-11-23 03:16:17,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 898 [2022-11-23 03:16:17,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:16:17,585 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 127, 127, 127, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:16:17,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-11-23 03:16:17,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:16:17,800 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 03:16:17,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:16:17,800 INFO L85 PathProgramCache]: Analyzing trace with hash 778230336, now seen corresponding path program 7 times [2022-11-23 03:16:17,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:16:17,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842131862] [2022-11-23 03:16:17,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:16:17,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:16:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:02,025 INFO L134 CoverageAnalysis]: Checked inductivity of 56134 backedges. 0 proven. 56134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:17:02,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:17:02,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842131862] [2022-11-23 03:17:02,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842131862] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:17:02,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171810917] [2022-11-23 03:17:02,026 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 03:17:02,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:17:02,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:17:02,029 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:17:02,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9867d3f8-7d72-4fef-8d25-4aa3ca99f3d8/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-23 03:17:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:02,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 2198 conjuncts, 511 conjunts are in the unsatisfiable core [2022-11-23 03:17:02,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:17:50,399 INFO L134 CoverageAnalysis]: Checked inductivity of 56134 backedges. 0 proven. 56134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:17:50,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:19:13,261 INFO L134 CoverageAnalysis]: Checked inductivity of 56134 backedges. 0 proven. 56134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:19:13,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171810917] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:19:13,261 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:19:13,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [258, 383, 383] total 1022 [2022-11-23 03:19:13,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748847976] [2022-11-23 03:19:13,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:19:13,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 1023 states [2022-11-23 03:19:13,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:19:13,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1023 interpolants. [2022-11-23 03:19:13,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139971, Invalid=905535, Unknown=0, NotChecked=0, Total=1045506 [2022-11-23 03:19:13,335 INFO L87 Difference]: Start difference. First operand 1794 states and 2048 transitions. Second operand has 1023 states, 1022 states have (on average 2.6291585127201564) internal successors, (2687), 1023 states have internal predecessors, (2687), 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)