./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b855c2333aba0768da7f98c0f43af3ba5efb2578eeec0e9146f1a7f4f307c07a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 19:12:35,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:12:35,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:12:35,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:12:35,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:12:35,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:12:35,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:12:35,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:12:35,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:12:35,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:12:35,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:12:35,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:12:35,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:12:35,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:12:35,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:12:35,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:12:35,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:12:35,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:12:35,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:12:35,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:12:35,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:12:35,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:12:35,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:12:35,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:12:35,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:12:35,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:12:35,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:12:35,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:12:35,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:12:35,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:12:35,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:12:35,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:12:35,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:12:35,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:12:35,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:12:35,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:12:35,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:12:35,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:12:35,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:12:35,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:12:35,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:12:35,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 19:12:35,559 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:12:35,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:12:35,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:12:35,566 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:12:35,567 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:12:35,567 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:12:35,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:12:35,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:12:35,567 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:12:35,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:12:35,568 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:12:35,568 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:12:35,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:12:35,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:12:35,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:12:35,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:12:35,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:12:35,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:12:35,569 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 19:12:35,569 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:12:35,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:12:35,569 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:12:35,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:12:35,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:12:35,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:12:35,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:12:35,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:12:35,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:12:35,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:12:35,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:12:35,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:12:35,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:12:35,571 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:12:35,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:12:35,571 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:12:35,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:12:35,571 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:12:35,571 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_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b855c2333aba0768da7f98c0f43af3ba5efb2578eeec0e9146f1a7f4f307c07a [2022-12-13 19:12:35,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:12:35,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:12:35,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:12:35,750 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:12:35,751 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:12:35,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i [2022-12-13 19:12:38,325 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:12:38,462 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:12:38,463 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i [2022-12-13 19:12:38,467 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/data/1cce2c4fd/02d08944e1ab42c8a59e5ce09af9de58/FLAG341fa5bf3 [2022-12-13 19:12:38,892 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/data/1cce2c4fd/02d08944e1ab42c8a59e5ce09af9de58 [2022-12-13 19:12:38,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:12:38,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:12:38,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:12:38,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:12:38,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:12:38,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:12:38" (1/1) ... [2022-12-13 19:12:38,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d47c29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:38, skipping insertion in model container [2022-12-13 19:12:38,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:12:38" (1/1) ... [2022-12-13 19:12:38,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:12:38,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:12:39,024 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_ba53e7fd-c1e9-478a-a644-494365f1e710/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i[959,972] [2022-12-13 19:12:39,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:12:39,042 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:12:39,050 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_ba53e7fd-c1e9-478a-a644-494365f1e710/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i[959,972] [2022-12-13 19:12:39,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:12:39,064 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:12:39,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:39 WrapperNode [2022-12-13 19:12:39,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:12:39,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:12:39,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:12:39,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:12:39,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:39" (1/1) ... [2022-12-13 19:12:39,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:39" (1/1) ... [2022-12-13 19:12:39,086 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-13 19:12:39,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:12:39,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:12:39,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:12:39,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:12:39,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:39" (1/1) ... [2022-12-13 19:12:39,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:39" (1/1) ... [2022-12-13 19:12:39,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:39" (1/1) ... [2022-12-13 19:12:39,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:39" (1/1) ... [2022-12-13 19:12:39,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:39" (1/1) ... [2022-12-13 19:12:39,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:39" (1/1) ... [2022-12-13 19:12:39,100 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:39" (1/1) ... [2022-12-13 19:12:39,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:39" (1/1) ... [2022-12-13 19:12:39,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:12:39,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:12:39,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:12:39,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:12:39,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:39" (1/1) ... [2022-12-13 19:12:39,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:12:39,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:39,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:12:39,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:12:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 19:12:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:12:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:12:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:12:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 19:12:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 19:12:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:12:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:12:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:12:39,213 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:12:39,215 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:12:39,327 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:12:39,331 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:12:39,332 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 19:12:39,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:12:39 BoogieIcfgContainer [2022-12-13 19:12:39,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:12:39,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:12:39,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:12:39,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:12:39,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:12:38" (1/3) ... [2022-12-13 19:12:39,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5782082d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:12:39, skipping insertion in model container [2022-12-13 19:12:39,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:12:39" (2/3) ... [2022-12-13 19:12:39,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5782082d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:12:39, skipping insertion in model container [2022-12-13 19:12:39,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:12:39" (3/3) ... [2022-12-13 19:12:39,339 INFO L112 eAbstractionObserver]: Analyzing ICFG array_of_struct_ptr_flag_init.i [2022-12-13 19:12:39,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:12:39,358 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 19:12:39,393 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:12:39,397 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;@1690fd87, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:12:39,397 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 19:12:39,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 24 states have (on average 1.625) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:39,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 19:12:39,407 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:39,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 19:12:39,407 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:12:39,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:39,411 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-12-13 19:12:39,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:39,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242907124] [2022-12-13 19:12:39,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:39,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:39,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:12:39,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:39,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242907124] [2022-12-13 19:12:39,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242907124] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:12:39,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:12:39,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:12:39,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911552945] [2022-12-13 19:12:39,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:12:39,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:12:39,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:39,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:12:39,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:12:39,642 INFO L87 Difference]: Start difference. First operand has 31 states, 24 states have (on average 1.625) internal successors, (39), 30 states have internal predecessors, (39), 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) [2022-12-13 19:12:39,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:12:39,703 INFO L93 Difference]: Finished difference Result 83 states and 105 transitions. [2022-12-13 19:12:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:12:39,706 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 [2022-12-13 19:12:39,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:12:39,713 INFO L225 Difference]: With dead ends: 83 [2022-12-13 19:12:39,713 INFO L226 Difference]: Without dead ends: 48 [2022-12-13 19:12:39,716 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 [2022-12-13 19:12:39,719 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 30 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:12:39,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 87 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:12:39,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-13 19:12:39,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 30. [2022-12-13 19:12:39,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 29 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) [2022-12-13 19:12:39,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2022-12-13 19:12:39,747 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 5 [2022-12-13 19:12:39,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:12:39,747 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2022-12-13 19:12:39,748 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) [2022-12-13 19:12:39,748 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2022-12-13 19:12:39,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 19:12:39,748 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:39,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:39,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:12:39,749 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:12:39,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:39,750 INFO L85 PathProgramCache]: Analyzing trace with hash 215923509, now seen corresponding path program 1 times [2022-12-13 19:12:39,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:39,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629709696] [2022-12-13 19:12:39,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:39,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:39,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:12:39,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:39,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629709696] [2022-12-13 19:12:39,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629709696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:12:39,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:12:39,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:12:39,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604730565] [2022-12-13 19:12:39,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:12:39,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:12:39,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:39,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:12:39,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:12:39,839 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-12-13 19:12:39,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:12:39,855 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2022-12-13 19:12:39,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:12:39,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 [2022-12-13 19:12:39,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:12:39,856 INFO L225 Difference]: With dead ends: 48 [2022-12-13 19:12:39,856 INFO L226 Difference]: Without dead ends: 30 [2022-12-13 19:12:39,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:12:39,858 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 3 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:12:39,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 53 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:12:39,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-13 19:12:39,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-12-13 19:12:39,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:39,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-12-13 19:12:39,864 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 8 [2022-12-13 19:12:39,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:12:39,865 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-12-13 19:12:39,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-12-13 19:12:39,865 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-12-13 19:12:39,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 19:12:39,866 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:39,866 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-12-13 19:12:39,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:12:39,867 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:12:39,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:39,868 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-12-13 19:12:39,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:39,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563446890] [2022-12-13 19:12:39,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:39,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:39,957 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:12:39,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:39,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563446890] [2022-12-13 19:12:39,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563446890] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:12:39,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8003549] [2022-12-13 19:12:39,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:39,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:39,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:39,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:12:39,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 19:12:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:40,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:12:40,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:12:40,077 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:12:40,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:12:40,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8003549] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:12:40,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:12:40,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-13 19:12:40,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246974747] [2022-12-13 19:12:40,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:12:40,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:12:40,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:40,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:12:40,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:12:40,080 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:40,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:12:40,116 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-12-13 19:12:40,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:12:40,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-13 19:12:40,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:12:40,117 INFO L225 Difference]: With dead ends: 30 [2022-12-13 19:12:40,117 INFO L226 Difference]: Without dead ends: 29 [2022-12-13 19:12:40,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:12:40,118 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 53 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:12:40,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 46 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:12:40,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-13 19:12:40,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-12-13 19:12:40,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.375) internal successors, (33), 28 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) [2022-12-13 19:12:40,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2022-12-13 19:12:40,121 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 9 [2022-12-13 19:12:40,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:12:40,121 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-12-13 19:12:40,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:40,121 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-12-13 19:12:40,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 19:12:40,121 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:40,122 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-12-13 19:12:40,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:12:40,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:40,324 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:12:40,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:40,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-12-13 19:12:40,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:40,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485222956] [2022-12-13 19:12:40,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:40,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:40,459 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:12:40,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:40,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485222956] [2022-12-13 19:12:40,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485222956] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:12:40,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246056982] [2022-12-13 19:12:40,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:40,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:40,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:40,461 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:12:40,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 19:12:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:40,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:12:40,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:12:40,543 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:12:40,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:12:40,583 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:12:40,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246056982] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:12:40,583 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:12:40,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-13 19:12:40,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726833445] [2022-12-13 19:12:40,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:12:40,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 19:12:40,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:40,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 19:12:40,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-12-13 19:12:40,585 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 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) [2022-12-13 19:12:40,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:12:40,669 INFO L93 Difference]: Finished difference Result 96 states and 114 transitions. [2022-12-13 19:12:40,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 19:12:40,670 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 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 10 [2022-12-13 19:12:40,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:12:40,671 INFO L225 Difference]: With dead ends: 96 [2022-12-13 19:12:40,671 INFO L226 Difference]: Without dead ends: 95 [2022-12-13 19:12:40,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-12-13 19:12:40,672 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 154 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:12:40,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 155 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:12:40,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-12-13 19:12:40,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 41. [2022-12-13 19:12:40,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 40 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:40,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2022-12-13 19:12:40,680 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 10 [2022-12-13 19:12:40,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:12:40,681 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2022-12-13 19:12:40,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 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) [2022-12-13 19:12:40,681 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2022-12-13 19:12:40,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 19:12:40,682 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:40,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:40,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 19:12:40,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:40,883 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:12:40,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:40,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1579022023, now seen corresponding path program 1 times [2022-12-13 19:12:40,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:40,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796694789] [2022-12-13 19:12:40,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:40,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:40,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 19:12:40,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:40,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796694789] [2022-12-13 19:12:40,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796694789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:12:40,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:12:40,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:12:40,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539679996] [2022-12-13 19:12:40,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:12:40,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:12:40,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:40,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:12:40,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:12:40,949 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:40,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:12:40,992 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2022-12-13 19:12:40,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:12:40,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2022-12-13 19:12:40,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:12:40,994 INFO L225 Difference]: With dead ends: 67 [2022-12-13 19:12:40,994 INFO L226 Difference]: Without dead ends: 55 [2022-12-13 19:12:40,995 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 [2022-12-13 19:12:40,996 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 13 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:12:40,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 59 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:12:40,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-12-13 19:12:40,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 46. [2022-12-13 19:12:41,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 45 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:41,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2022-12-13 19:12:41,000 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 12 [2022-12-13 19:12:41,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:12:41,000 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2022-12-13 19:12:41,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:41,001 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2022-12-13 19:12:41,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 19:12:41,001 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:41,001 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:41,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 19:12:41,001 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:12:41,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:41,002 INFO L85 PathProgramCache]: Analyzing trace with hash -64521645, now seen corresponding path program 1 times [2022-12-13 19:12:41,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:41,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125096369] [2022-12-13 19:12:41,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:41,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:41,069 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 19:12:41,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:41,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125096369] [2022-12-13 19:12:41,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125096369] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:12:41,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247064793] [2022-12-13 19:12:41,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:41,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:41,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:41,071 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:12:41,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 19:12:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:41,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 19:12:41,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:12:41,169 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 19:12:41,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:12:41,206 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 19:12:41,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247064793] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:12:41,206 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:12:41,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-13 19:12:41,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491063773] [2022-12-13 19:12:41,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:12:41,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 19:12:41,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:41,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 19:12:41,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-13 19:12:41,208 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:41,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:12:41,251 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2022-12-13 19:12:41,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:12:41,252 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-13 19:12:41,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:12:41,252 INFO L225 Difference]: With dead ends: 69 [2022-12-13 19:12:41,252 INFO L226 Difference]: Without dead ends: 46 [2022-12-13 19:12:41,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-12-13 19:12:41,254 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:12:41,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 115 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:12:41,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-13 19:12:41,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-13 19:12:41,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 45 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:41,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-12-13 19:12:41,259 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 17 [2022-12-13 19:12:41,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:12:41,259 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-12-13 19:12:41,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:41,259 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-12-13 19:12:41,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 19:12:41,260 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:41,260 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1] [2022-12-13 19:12:41,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 19:12:41,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:41,462 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:12:41,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:41,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1326689066, now seen corresponding path program 2 times [2022-12-13 19:12:41,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:41,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351321363] [2022-12-13 19:12:41,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:41,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:41,697 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:12:41,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:41,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351321363] [2022-12-13 19:12:41,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351321363] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:12:41,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922546780] [2022-12-13 19:12:41,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:12:41,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:41,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:41,699 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:12:41,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 19:12:41,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 19:12:41,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:12:41,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:12:41,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:12:41,790 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 19:12:41,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:12:41,840 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 19:12:41,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922546780] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:12:41,841 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:12:41,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-12-13 19:12:41,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584502868] [2022-12-13 19:12:41,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:12:41,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 19:12:41,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:41,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 19:12:41,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-12-13 19:12:41,843 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:42,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:12:42,000 INFO L93 Difference]: Finished difference Result 120 states and 141 transitions. [2022-12-13 19:12:42,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 19:12:42,000 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 18 states have internal predecessors, (40), 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 22 [2022-12-13 19:12:42,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:12:42,002 INFO L225 Difference]: With dead ends: 120 [2022-12-13 19:12:42,002 INFO L226 Difference]: Without dead ends: 119 [2022-12-13 19:12:42,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-12-13 19:12:42,003 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 378 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:12:42,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 219 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:12:42,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-12-13 19:12:42,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 38. [2022-12-13 19:12:42,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 37 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:42,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2022-12-13 19:12:42,007 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 22 [2022-12-13 19:12:42,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:12:42,008 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-12-13 19:12:42,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:42,008 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-12-13 19:12:42,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 19:12:42,009 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:42,009 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:42,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 19:12:42,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:42,210 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:12:42,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:42,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1897641653, now seen corresponding path program 2 times [2022-12-13 19:12:42,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:42,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089075453] [2022-12-13 19:12:42,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:42,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:42,360 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 19:12:42,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:42,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089075453] [2022-12-13 19:12:42,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089075453] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:12:42,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550966205] [2022-12-13 19:12:42,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:12:42,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:42,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:42,361 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:12:42,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 19:12:42,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 19:12:42,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:12:42,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 19:12:42,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:12:42,509 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 19:12:42,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:12:42,601 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 19:12:42,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550966205] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:12:42,601 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:12:42,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2022-12-13 19:12:42,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446350056] [2022-12-13 19:12:42,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:12:42,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 19:12:42,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:42,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 19:12:42,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2022-12-13 19:12:42,603 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:42,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:12:42,714 INFO L93 Difference]: Finished difference Result 77 states and 90 transitions. [2022-12-13 19:12:42,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 19:12:42,715 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-12-13 19:12:42,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:12:42,715 INFO L225 Difference]: With dead ends: 77 [2022-12-13 19:12:42,715 INFO L226 Difference]: Without dead ends: 54 [2022-12-13 19:12:42,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=581, Unknown=0, NotChecked=0, Total=812 [2022-12-13 19:12:42,717 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 34 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:12:42,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 223 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:12:42,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-12-13 19:12:42,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-12-13 19:12:42,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.18) internal successors, (59), 53 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:42,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2022-12-13 19:12:42,723 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 25 [2022-12-13 19:12:42,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:12:42,723 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2022-12-13 19:12:42,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:42,723 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2022-12-13 19:12:42,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-13 19:12:42,724 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:42,724 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:42,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 19:12:42,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 19:12:42,925 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:12:42,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:42,926 INFO L85 PathProgramCache]: Analyzing trace with hash -919699653, now seen corresponding path program 3 times [2022-12-13 19:12:42,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:42,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482273664] [2022-12-13 19:12:42,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:42,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:43,275 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 19:12:43,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:43,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482273664] [2022-12-13 19:12:43,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482273664] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:12:43,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250531691] [2022-12-13 19:12:43,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 19:12:43,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:43,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:43,277 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:12:43,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 19:12:43,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 19:12:43,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:12:43,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 19:12:43,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:12:43,383 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-13 19:12:43,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:12:43,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250531691] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:12:43,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:12:43,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 20 [2022-12-13 19:12:43,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860369057] [2022-12-13 19:12:43,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:12:43,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:12:43,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:43,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:12:43,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2022-12-13 19:12:43,386 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 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) [2022-12-13 19:12:43,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:12:43,418 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-12-13 19:12:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:12:43,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 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 41 [2022-12-13 19:12:43,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:12:43,419 INFO L225 Difference]: With dead ends: 63 [2022-12-13 19:12:43,420 INFO L226 Difference]: Without dead ends: 62 [2022-12-13 19:12:43,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-12-13 19:12:43,421 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:12:43,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 47 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:12:43,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-13 19:12:43,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 53. [2022-12-13 19:12:43,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 50 states have (on average 1.16) internal successors, (58), 52 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:43,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2022-12-13 19:12:43,426 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 41 [2022-12-13 19:12:43,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:12:43,426 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2022-12-13 19:12:43,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 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) [2022-12-13 19:12:43,426 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2022-12-13 19:12:43,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-13 19:12:43,427 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:43,427 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:43,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 19:12:43,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-13 19:12:43,628 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:12:43,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:43,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1554081898, now seen corresponding path program 1 times [2022-12-13 19:12:43,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:43,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314322273] [2022-12-13 19:12:43,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:43,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:43,783 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-12-13 19:12:43,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:43,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314322273] [2022-12-13 19:12:43,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314322273] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:12:43,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:12:43,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:12:43,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791841575] [2022-12-13 19:12:43,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:12:43,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:12:43,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:43,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:12:43,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:12:43,786 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:43,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:12:43,809 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2022-12-13 19:12:43,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:12:43,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 42 [2022-12-13 19:12:43,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:12:43,810 INFO L225 Difference]: With dead ends: 54 [2022-12-13 19:12:43,811 INFO L226 Difference]: Without dead ends: 53 [2022-12-13 19:12:43,811 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 [2022-12-13 19:12:43,811 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 12 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:12:43,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 43 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:12:43,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-13 19:12:43,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 48. [2022-12-13 19:12:43,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 47 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:43,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2022-12-13 19:12:43,817 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 42 [2022-12-13 19:12:43,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:12:43,817 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2022-12-13 19:12:43,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:43,817 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2022-12-13 19:12:43,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-13 19:12:43,818 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:43,818 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:43,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 19:12:43,818 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:12:43,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:43,818 INFO L85 PathProgramCache]: Analyzing trace with hash 884380021, now seen corresponding path program 1 times [2022-12-13 19:12:43,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:43,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253598983] [2022-12-13 19:12:43,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:43,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:43,883 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-13 19:12:43,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:43,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253598983] [2022-12-13 19:12:43,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253598983] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:12:43,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793926125] [2022-12-13 19:12:43,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:43,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:43,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:43,885 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:12:43,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 19:12:43,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:43,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:12:43,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:12:44,014 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-12-13 19:12:44,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:12:44,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793926125] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:12:44,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:12:44,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-12-13 19:12:44,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360105888] [2022-12-13 19:12:44,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:12:44,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:12:44,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:44,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:12:44,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:12:44,016 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:44,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:12:44,024 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2022-12-13 19:12:44,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:12:44,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 43 [2022-12-13 19:12:44,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:12:44,025 INFO L225 Difference]: With dead ends: 70 [2022-12-13 19:12:44,025 INFO L226 Difference]: Without dead ends: 61 [2022-12-13 19:12:44,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:12:44,026 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 8 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:12:44,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 44 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:12:44,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-13 19:12:44,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2022-12-13 19:12:44,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 58 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) [2022-12-13 19:12:44,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 67 transitions. [2022-12-13 19:12:44,033 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 67 transitions. Word has length 43 [2022-12-13 19:12:44,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:12:44,034 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 67 transitions. [2022-12-13 19:12:44,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:44,034 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 67 transitions. [2022-12-13 19:12:44,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-13 19:12:44,034 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:44,035 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:44,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-13 19:12:44,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:44,236 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:12:44,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:44,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1277407031, now seen corresponding path program 1 times [2022-12-13 19:12:44,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:44,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076611168] [2022-12-13 19:12:44,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:44,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:44,414 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-13 19:12:44,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:44,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076611168] [2022-12-13 19:12:44,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076611168] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:12:44,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967393464] [2022-12-13 19:12:44,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:44,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:44,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:44,416 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:12:44,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 19:12:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:44,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 19:12:44,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:12:44,724 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 19:12:44,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:12:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 19:12:44,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967393464] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:12:44,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:12:44,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 35 [2022-12-13 19:12:44,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252249404] [2022-12-13 19:12:44,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:12:44,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-13 19:12:44,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:44,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-13 19:12:44,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=911, Unknown=0, NotChecked=0, Total=1190 [2022-12-13 19:12:44,973 INFO L87 Difference]: Start difference. First operand 59 states and 67 transitions. Second operand has 35 states, 35 states have (on average 2.4571428571428573) internal successors, (86), 35 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:45,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:12:45,263 INFO L93 Difference]: Finished difference Result 150 states and 181 transitions. [2022-12-13 19:12:45,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-13 19:12:45,264 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.4571428571428573) internal successors, (86), 35 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-12-13 19:12:45,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:12:45,264 INFO L225 Difference]: With dead ends: 150 [2022-12-13 19:12:45,264 INFO L226 Difference]: Without dead ends: 122 [2022-12-13 19:12:45,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=635, Invalid=1815, Unknown=0, NotChecked=0, Total=2450 [2022-12-13 19:12:45,265 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 111 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:12:45,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 109 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:12:45,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-12-13 19:12:45,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 100. [2022-12-13 19:12:45,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 98 states have (on average 1.1122448979591837) internal successors, (109), 99 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:45,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 109 transitions. [2022-12-13 19:12:45,271 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 109 transitions. Word has length 43 [2022-12-13 19:12:45,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:12:45,271 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 109 transitions. [2022-12-13 19:12:45,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.4571428571428573) internal successors, (86), 35 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:45,272 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 109 transitions. [2022-12-13 19:12:45,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-13 19:12:45,272 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:45,272 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:45,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 19:12:45,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:45,473 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:12:45,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:45,474 INFO L85 PathProgramCache]: Analyzing trace with hash -162168787, now seen corresponding path program 1 times [2022-12-13 19:12:45,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:45,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069591874] [2022-12-13 19:12:45,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:45,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:45,578 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2022-12-13 19:12:45,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:45,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069591874] [2022-12-13 19:12:45,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069591874] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:12:45,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:12:45,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:12:45,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164806998] [2022-12-13 19:12:45,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:12:45,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:12:45,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:45,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:12:45,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:12:45,580 INFO L87 Difference]: Start difference. First operand 100 states and 109 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:45,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:12:45,605 INFO L93 Difference]: Finished difference Result 114 states and 126 transitions. [2022-12-13 19:12:45,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:12:45,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 80 [2022-12-13 19:12:45,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:12:45,607 INFO L225 Difference]: With dead ends: 114 [2022-12-13 19:12:45,607 INFO L226 Difference]: Without dead ends: 112 [2022-12-13 19:12:45,607 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 [2022-12-13 19:12:45,608 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 11 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:12:45,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 50 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:12:45,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-12-13 19:12:45,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-12-13 19:12:45,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 110 states have (on average 1.1090909090909091) internal successors, (122), 111 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:45,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 122 transitions. [2022-12-13 19:12:45,617 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 122 transitions. Word has length 80 [2022-12-13 19:12:45,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:12:45,617 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 122 transitions. [2022-12-13 19:12:45,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:45,618 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 122 transitions. [2022-12-13 19:12:45,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-13 19:12:45,619 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:45,619 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:45,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 19:12:45,619 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:12:45,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:45,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1973034152, now seen corresponding path program 1 times [2022-12-13 19:12:45,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:45,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963291829] [2022-12-13 19:12:45,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:45,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 19:12:46,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:46,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963291829] [2022-12-13 19:12:46,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963291829] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:12:46,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124284362] [2022-12-13 19:12:46,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:46,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:46,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:46,448 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:12:46,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 19:12:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:46,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 34 conjunts are in the unsatisfiable core [2022-12-13 19:12:46,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:12:47,373 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 19:12:47,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:12:48,590 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 19:12:48,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124284362] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:12:48,590 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:12:48,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 95 [2022-12-13 19:12:48,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089599748] [2022-12-13 19:12:48,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:12:48,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-12-13 19:12:48,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:48,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-12-13 19:12:48,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=6850, Unknown=0, NotChecked=0, Total=8930 [2022-12-13 19:12:48,593 INFO L87 Difference]: Start difference. First operand 112 states and 122 transitions. Second operand has 95 states, 95 states have (on average 2.126315789473684) internal successors, (202), 95 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:49,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:12:49,528 INFO L93 Difference]: Finished difference Result 225 states and 260 transitions. [2022-12-13 19:12:49,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-12-13 19:12:49,528 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 2.126315789473684) internal successors, (202), 95 states have internal predecessors, (202), 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 85 [2022-12-13 19:12:49,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:12:49,529 INFO L225 Difference]: With dead ends: 225 [2022-12-13 19:12:49,529 INFO L226 Difference]: Without dead ends: 176 [2022-12-13 19:12:49,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3091 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=3807, Invalid=11693, Unknown=0, NotChecked=0, Total=15500 [2022-12-13 19:12:49,531 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 180 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 19:12:49,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 283 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 19:12:49,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-12-13 19:12:49,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2022-12-13 19:12:49,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 174 states have (on average 1.0689655172413792) internal successors, (186), 175 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:49,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 186 transitions. [2022-12-13 19:12:49,539 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 186 transitions. Word has length 85 [2022-12-13 19:12:49,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:12:49,539 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 186 transitions. [2022-12-13 19:12:49,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 2.126315789473684) internal successors, (202), 95 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:12:49,539 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 186 transitions. [2022-12-13 19:12:49,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-12-13 19:12:49,540 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:49,540 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:49,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-13 19:12:49,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:49,742 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:12:49,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:49,743 INFO L85 PathProgramCache]: Analyzing trace with hash -211053464, now seen corresponding path program 2 times [2022-12-13 19:12:49,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:49,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109204155] [2022-12-13 19:12:49,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:49,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:52,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 19:12:52,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:52,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109204155] [2022-12-13 19:12:52,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109204155] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:12:52,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909883405] [2022-12-13 19:12:52,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:12:52,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:12:52,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:12:52,253 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:12:52,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 19:12:52,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 19:12:52,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:12:52,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 66 conjunts are in the unsatisfiable core [2022-12-13 19:12:52,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:12:55,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 19:12:55,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:12:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 19:12:59,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909883405] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:12:59,559 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:12:59,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 191 [2022-12-13 19:12:59,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216341853] [2022-12-13 19:12:59,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:12:59,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2022-12-13 19:12:59,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:59,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2022-12-13 19:12:59,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8256, Invalid=28034, Unknown=0, NotChecked=0, Total=36290 [2022-12-13 19:12:59,566 INFO L87 Difference]: Start difference. First operand 176 states and 186 transitions. Second operand has 191 states, 191 states have (on average 2.06282722513089) internal successors, (394), 191 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:13:03,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:13:03,408 INFO L93 Difference]: Finished difference Result 353 states and 404 transitions. [2022-12-13 19:13:03,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-12-13 19:13:03,409 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 191 states have (on average 2.06282722513089) internal successors, (394), 191 states have internal predecessors, (394), 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 149 [2022-12-13 19:13:03,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:13:03,409 INFO L225 Difference]: With dead ends: 353 [2022-12-13 19:13:03,409 INFO L226 Difference]: Without dead ends: 304 [2022-12-13 19:13:03,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13331 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=15295, Invalid=48461, Unknown=0, NotChecked=0, Total=63756 [2022-12-13 19:13:03,414 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 620 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:13:03,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 103 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 19:13:03,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-12-13 19:13:03,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2022-12-13 19:13:03,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 302 states have (on average 1.0397350993377483) internal successors, (314), 303 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:13:03,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 314 transitions. [2022-12-13 19:13:03,424 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 314 transitions. Word has length 149 [2022-12-13 19:13:03,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:13:03,424 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 314 transitions. [2022-12-13 19:13:03,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 191 states have (on average 2.06282722513089) internal successors, (394), 191 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:13:03,424 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 314 transitions. [2022-12-13 19:13:03,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-12-13 19:13:03,426 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:13:03,426 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:13:03,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 19:13:03,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:13:03,629 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:13:03,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:13:03,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1204517912, now seen corresponding path program 3 times [2022-12-13 19:13:03,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:13:03,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288658047] [2022-12-13 19:13:03,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:13:03,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:13:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:13:11,563 INFO L134 CoverageAnalysis]: Checked inductivity of 7886 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 19:13:11,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:13:11,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288658047] [2022-12-13 19:13:11,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288658047] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:13:11,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384674256] [2022-12-13 19:13:11,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 19:13:11,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:13:11,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:13:11,564 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:13:11,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 19:13:11,733 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 19:13:11,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:13:11,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 19:13:11,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:13:11,862 INFO L134 CoverageAnalysis]: Checked inductivity of 7886 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7882 trivial. 0 not checked. [2022-12-13 19:13:11,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:13:11,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384674256] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:13:11,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:13:11,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [129] total 132 [2022-12-13 19:13:11,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833524865] [2022-12-13 19:13:11,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:13:11,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:13:11,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:13:11,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:13:11,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4231, Invalid=13061, Unknown=0, NotChecked=0, Total=17292 [2022-12-13 19:13:11,866 INFO L87 Difference]: Start difference. First operand 304 states and 314 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 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) [2022-12-13 19:13:11,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:13:11,951 INFO L93 Difference]: Finished difference Result 304 states and 314 transitions. [2022-12-13 19:13:11,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:13:11,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 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) Word has length 277 [2022-12-13 19:13:11,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:13:11,952 INFO L225 Difference]: With dead ends: 304 [2022-12-13 19:13:11,953 INFO L226 Difference]: Without dead ends: 303 [2022-12-13 19:13:11,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4281 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=4236, Invalid=13320, Unknown=0, NotChecked=0, Total=17556 [2022-12-13 19:13:11,954 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 13 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:13:11,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 58 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:13:11,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-12-13 19:13:11,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2022-12-13 19:13:11,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.033112582781457) internal successors, (312), 302 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:13:11,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 312 transitions. [2022-12-13 19:13:11,965 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 312 transitions. Word has length 277 [2022-12-13 19:13:11,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:13:11,965 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 312 transitions. [2022-12-13 19:13:11,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 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) [2022-12-13 19:13:11,965 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 312 transitions. [2022-12-13 19:13:11,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-12-13 19:13:11,967 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:13:11,968 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:13:11,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 19:13:12,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 19:13:12,168 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 19:13:12,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:13:12,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1314650493, now seen corresponding path program 1 times [2022-12-13 19:13:12,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:13:12,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835426937] [2022-12-13 19:13:12,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:13:12,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:13:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:13:12,432 INFO L134 CoverageAnalysis]: Checked inductivity of 7887 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7883 trivial. 0 not checked. [2022-12-13 19:13:12,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:13:12,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835426937] [2022-12-13 19:13:12,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835426937] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:13:12,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:13:12,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:13:12,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089550968] [2022-12-13 19:13:12,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:13:12,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:13:12,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:13:12,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:13:12,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:13:12,433 INFO L87 Difference]: Start difference. First operand 303 states and 312 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:13:12,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:13:12,459 INFO L93 Difference]: Finished difference Result 303 states and 312 transitions. [2022-12-13 19:13:12,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:13:12,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 278 [2022-12-13 19:13:12,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:13:12,460 INFO L225 Difference]: With dead ends: 303 [2022-12-13 19:13:12,460 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 19:13:12,461 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 [2022-12-13 19:13:12,461 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 10 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:13:12,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 39 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:13:12,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 19:13:12,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 19:13:12,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:13:12,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 19:13:12,463 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 278 [2022-12-13 19:13:12,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:13:12,463 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 19:13:12,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:13:12,463 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 19:13:12,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 19:13:12,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-13 19:13:12,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-13 19:13:12,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-13 19:13:12,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-13 19:13:12,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-13 19:13:12,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-13 19:13:12,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 19:13:12,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 19:13:13,328 INFO L899 garLoopResultBuilder]: For program point L35-2(lines 35 41) no Hoare annotation was computed. [2022-12-13 19:13:13,328 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2022-12-13 19:13:13,328 INFO L899 garLoopResultBuilder]: For program point L35-4(line 35) no Hoare annotation was computed. [2022-12-13 19:13:13,328 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-12-13 19:13:13,328 INFO L895 garLoopResultBuilder]: At program point L35-5(lines 35 41) the Hoare annotation is: (and (<= |ULTIMATE.start_init_~size#1| 100000) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)) (<= 1 |ULTIMATE.start_init_~i~0#1|) (< |ULTIMATE.start_init_~i~0#1| 2147483647)) [2022-12-13 19:13:13,329 INFO L899 garLoopResultBuilder]: For program point L35-6(lines 35 41) no Hoare annotation was computed. [2022-12-13 19:13:13,329 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2022-12-13 19:13:13,329 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2022-12-13 19:13:13,329 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2022-12-13 19:13:13,329 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 26) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~flag~0#1| 0))) (or (and (<= |ULTIMATE.start_init_~size#1| 100000) .cse0 (<= 1 |ULTIMATE.start_init_~i~0#1|) (< |ULTIMATE.start_init_~i~0#1| 2147483647)) (and (= |ULTIMATE.start_init_~size#1| 100000) (= |ULTIMATE.start_init_~i~0#1| 0) .cse0))) [2022-12-13 19:13:13,329 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-12-13 19:13:13,329 INFO L899 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2022-12-13 19:13:13,329 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2022-12-13 19:13:13,329 INFO L899 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2022-12-13 19:13:13,329 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 28 48) the Hoare annotation is: true [2022-12-13 19:13:13,329 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 19:13:13,329 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-13 19:13:13,330 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-12-13 19:13:13,330 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 19:13:13,330 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 27) no Hoare annotation was computed. [2022-12-13 19:13:13,330 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2022-12-13 19:13:13,330 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-13 19:13:13,330 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 19:13:13,330 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-12-13 19:13:13,330 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 19:13:13,330 INFO L899 garLoopResultBuilder]: For program point L42-2(lines 42 46) no Hoare annotation was computed. [2022-12-13 19:13:13,330 INFO L899 garLoopResultBuilder]: For program point L42-3(line 42) no Hoare annotation was computed. [2022-12-13 19:13:13,330 INFO L899 garLoopResultBuilder]: For program point L42-4(line 42) no Hoare annotation was computed. [2022-12-13 19:13:13,331 INFO L895 garLoopResultBuilder]: At program point L42-5(lines 42 46) the Hoare annotation is: (and (<= |ULTIMATE.start_init_~size#1| 100000) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)) (<= 1 |ULTIMATE.start_init_~i~0#1|) (< |ULTIMATE.start_init_~i~0#1| 2147483647)) [2022-12-13 19:13:13,331 INFO L899 garLoopResultBuilder]: For program point L42-6(lines 42 46) no Hoare annotation was computed. [2022-12-13 19:13:13,331 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-12-13 19:13:13,334 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:13:13,336 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:13:13,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:13:13 BoogieIcfgContainer [2022-12-13 19:13:13,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:13:13,347 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:13:13,348 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:13:13,348 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:13:13,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:12:39" (3/4) ... [2022-12-13 19:13:13,351 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 19:13:13,360 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-13 19:13:13,360 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 19:13:13,360 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 19:13:13,360 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 19:13:13,388 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:13:13,388 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:13:13,389 INFO L158 Benchmark]: Toolchain (without parser) took 34493.03ms. Allocated memory was 134.2MB in the beginning and 423.6MB in the end (delta: 289.4MB). Free memory was 99.1MB in the beginning and 252.7MB in the end (delta: -153.6MB). Peak memory consumption was 137.0MB. Max. memory is 16.1GB. [2022-12-13 19:13:13,389 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 101.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:13:13,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.32ms. Allocated memory is still 134.2MB. Free memory was 99.1MB in the beginning and 88.5MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 19:13:13,389 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.73ms. Allocated memory is still 134.2MB. Free memory was 88.5MB in the beginning and 87.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:13:13,390 INFO L158 Benchmark]: Boogie Preprocessor took 15.00ms. Allocated memory is still 134.2MB. Free memory was 87.1MB in the beginning and 85.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:13:13,390 INFO L158 Benchmark]: RCFGBuilder took 230.76ms. Allocated memory is still 134.2MB. Free memory was 85.7MB in the beginning and 74.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 19:13:13,390 INFO L158 Benchmark]: TraceAbstraction took 34012.57ms. Allocated memory was 134.2MB in the beginning and 423.6MB in the end (delta: 289.4MB). Free memory was 73.4MB in the beginning and 255.9MB in the end (delta: -182.4MB). Peak memory consumption was 248.2MB. Max. memory is 16.1GB. [2022-12-13 19:13:13,391 INFO L158 Benchmark]: Witness Printer took 40.77ms. Allocated memory is still 423.6MB. Free memory was 255.9MB in the beginning and 252.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:13:13,392 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 101.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 167.32ms. Allocated memory is still 134.2MB. Free memory was 99.1MB in the beginning and 88.5MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.73ms. Allocated memory is still 134.2MB. Free memory was 88.5MB in the beginning and 87.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.00ms. Allocated memory is still 134.2MB. Free memory was 87.1MB in the beginning and 85.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 230.76ms. Allocated memory is still 134.2MB. Free memory was 85.7MB in the beginning and 74.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 34012.57ms. Allocated memory was 134.2MB in the beginning and 423.6MB in the end (delta: 289.4MB). Free memory was 73.4MB in the beginning and 255.9MB in the end (delta: -182.4MB). Peak memory consumption was 248.2MB. Max. memory is 16.1GB. * Witness Printer took 40.77ms. Allocated memory is still 423.6MB. Free memory was 255.9MB in the beginning and 252.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 34.0s, OverallIterations: 17, TraceHistogramMax: 63, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1664 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1664 mSDsluCounter, 1733 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1355 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1338 IncrementalHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 378 mSDtfsCounter, 1338 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1504 GetRequests, 823 SyntacticMatches, 0 SemanticMatches, 681 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21516 ImplicationChecksByTransitivity, 19.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=15, InterpolantAutomatonStates: 311, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 200 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 78 NumberOfFragments, 55 HoareAnnotationTreeSize, 4 FomulaSimplifications, 7217 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 4 FomulaSimplificationsInter, 4931 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 1867 NumberOfCodeBlocks, 1574 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 2183 ConstructedInterpolants, 0 QuantifiedInterpolants, 7801 SizeOfPredicates, 82 NumberOfNonLiveVariables, 2861 ConjunctsInSsa, 160 ConjunctsInUnsatCore, 35 InterpolantComputations, 10 PerfectInterpolantSequences, 16847/32102 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((size <= 100000 && flag == 0) && 1 <= i) && i < 2147483647) || ((size == 100000 && i == 0) && flag == 0) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: ((size <= 100000 && 0 <= i + 2147483648) && 1 <= i) && i < 2147483647 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((size <= 100000 && 0 <= i + 2147483648) && 1 <= i) && i < 2147483647 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-13 19:13:13,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba53e7fd-c1e9-478a-a644-494365f1e710/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE