./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/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_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/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_54840d6b-9259-4d23-9fe1-d2624b833737/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 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 --- 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 19:17:57,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:17:57,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:17:57,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:17:57,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:17:57,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:17:57,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:17:57,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:17:57,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:17:57,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:17:57,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:17:57,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:17:57,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:17:57,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:17:57,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:17:57,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:17:57,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:17:57,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:17:57,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:17:57,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:17:57,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:17:57,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:17:57,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:17:57,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:17:57,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:17:57,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:17:57,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:17:57,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:17:57,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:17:57,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:17:57,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:17:57,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:17:57,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:17:57,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:17:57,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:17:57,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:17:57,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:17:57,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:17:57,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:17:57,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:17:57,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:17:57,671 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 19:17:57,689 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:17:57,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:17:57,689 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:17:57,689 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:17:57,690 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:17:57,690 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:17:57,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:17:57,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:17:57,691 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:17:57,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:17:57,691 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:17:57,691 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:17:57,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:17:57,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:17:57,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:17:57,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:17:57,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:17:57,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:17:57,692 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 19:17:57,692 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:17:57,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:17:57,692 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:17:57,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:17:57,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:17:57,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:17:57,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:17:57,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:17:57,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:17:57,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:17:57,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:17:57,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:17:57,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:17:57,693 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:17:57,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:17:57,694 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:17:57,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:17:57,694 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:17:57,694 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_54840d6b-9259-4d23-9fe1-d2624b833737/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 [2022-12-13 19:17:57,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:17:57,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:17:57,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:17:57,886 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:17:57,886 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:17:57,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-12-13 19:18:00,496 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:18:00,660 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:18:00,660 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-12-13 19:18:00,667 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/data/78f176743/73742ad11c3347e4854ea2ec27b095f5/FLAGf8517bf13 [2022-12-13 19:18:00,682 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/data/78f176743/73742ad11c3347e4854ea2ec27b095f5 [2022-12-13 19:18:00,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:18:00,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:18:00,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:18:00,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:18:00,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:18:00,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:18:00" (1/1) ... [2022-12-13 19:18:00,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7161de13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:00, skipping insertion in model container [2022-12-13 19:18:00,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:18:00" (1/1) ... [2022-12-13 19:18:00,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:18:00,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:18:00,852 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-12-13 19:18:00,854 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-12-13 19:18:00,855 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-12-13 19:18:00,856 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-12-13 19:18:00,857 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-12-13 19:18:00,859 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-12-13 19:18:00,860 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-12-13 19:18:00,862 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-12-13 19:18:00,863 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-12-13 19:18:00,864 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-12-13 19:18:00,865 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-12-13 19:18:00,867 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-12-13 19:18:00,868 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-12-13 19:18:00,869 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-12-13 19:18:00,870 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-12-13 19:18:00,871 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-12-13 19:18:00,872 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-12-13 19:18:00,873 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-12-13 19:18:00,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:18:00,882 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:18:00,892 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-12-13 19:18:00,893 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-12-13 19:18:00,894 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-12-13 19:18:00,895 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-12-13 19:18:00,896 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-12-13 19:18:00,897 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-12-13 19:18:00,898 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-12-13 19:18:00,898 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-12-13 19:18:00,900 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-12-13 19:18:00,901 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-12-13 19:18:00,902 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-12-13 19:18:00,903 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-12-13 19:18:00,904 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-12-13 19:18:00,905 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-12-13 19:18:00,906 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-12-13 19:18:00,906 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-12-13 19:18:00,907 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-12-13 19:18:00,908 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_54840d6b-9259-4d23-9fe1-d2624b833737/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-12-13 19:18:00,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:18:00,919 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:18:00,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:00 WrapperNode [2022-12-13 19:18:00,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:18:00,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:18:00,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:18:00,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:18:00,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:00" (1/1) ... [2022-12-13 19:18:00,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:00" (1/1) ... [2022-12-13 19:18:00,948 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 254 [2022-12-13 19:18:00,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:18:00,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:18:00,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:18:00,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:18:00,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:00" (1/1) ... [2022-12-13 19:18:00,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:00" (1/1) ... [2022-12-13 19:18:00,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:00" (1/1) ... [2022-12-13 19:18:00,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:00" (1/1) ... [2022-12-13 19:18:00,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:00" (1/1) ... [2022-12-13 19:18:00,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:00" (1/1) ... [2022-12-13 19:18:00,963 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:00" (1/1) ... [2022-12-13 19:18:00,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:00" (1/1) ... [2022-12-13 19:18:00,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:18:00,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:18:00,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:18:00,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:18:00,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:00" (1/1) ... [2022-12-13 19:18:00,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:18:00,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:18:00,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:18:00,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:18:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:18:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:18:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:18:01,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:18:01,082 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:18:01,084 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:18:01,264 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:18:01,269 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:18:01,269 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:18:01,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:18:01 BoogieIcfgContainer [2022-12-13 19:18:01,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:18:01,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:18:01,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:18:01,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:18:01,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:18:00" (1/3) ... [2022-12-13 19:18:01,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60745e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:18:01, skipping insertion in model container [2022-12-13 19:18:01,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:00" (2/3) ... [2022-12-13 19:18:01,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60745e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:18:01, skipping insertion in model container [2022-12-13 19:18:01,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:18:01" (3/3) ... [2022-12-13 19:18:01,278 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+lhb-reducer.c [2022-12-13 19:18:01,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:18:01,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-12-13 19:18:01,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:18:01,345 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;@3d271ac3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:18:01,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-13 19:18:01,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 48 states have (on average 1.8333333333333333) internal successors, (88), 58 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:18:01,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-13 19:18:01,352 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:01,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-13 19:18:01,352 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 19:18:01,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:01,356 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-12-13 19:18:01,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:01,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768456231] [2022-12-13 19:18:01,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:01,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:01,483 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 19:18:01,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:18:01,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768456231] [2022-12-13 19:18:01,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768456231] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:18:01,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:18:01,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:18:01,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224001044] [2022-12-13 19:18:01,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:18:01,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:18:01,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:18:01,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:18:01,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:18:01,514 INFO L87 Difference]: Start difference. First operand has 59 states, 48 states have (on average 1.8333333333333333) internal successors, (88), 58 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 19:18:01,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:01,571 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2022-12-13 19:18:01,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:18:01,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-12-13 19:18:01,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:01,579 INFO L225 Difference]: With dead ends: 62 [2022-12-13 19:18:01,579 INFO L226 Difference]: Without dead ends: 46 [2022-12-13 19:18:01,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:18:01,583 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 2 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:01,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 111 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:18:01,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-13 19:18:01,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-13 19:18:01,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 45 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 19:18:01,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-12-13 19:18:01,608 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 4 [2022-12-13 19:18:01,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:01,609 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-12-13 19:18:01,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 19:18:01,609 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-12-13 19:18:01,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 19:18:01,609 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:01,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 19:18:01,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:18:01,610 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 19:18:01,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:01,611 INFO L85 PathProgramCache]: Analyzing trace with hash 28693763, now seen corresponding path program 1 times [2022-12-13 19:18:01,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:01,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029942551] [2022-12-13 19:18:01,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:01,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:01,644 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 19:18:01,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:18:01,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029942551] [2022-12-13 19:18:01,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029942551] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:18:01,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:18:01,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:18:01,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454069473] [2022-12-13 19:18:01,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:18:01,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:18:01,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:18:01,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:18:01,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:18:01,648 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 19:18:01,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:01,670 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2022-12-13 19:18:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:18:01,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 19:18:01,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:01,672 INFO L225 Difference]: With dead ends: 46 [2022-12-13 19:18:01,672 INFO L226 Difference]: Without dead ends: 45 [2022-12-13 19:18:01,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:18:01,673 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 44 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:01,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 37 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:18:01,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-12-13 19:18:01,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-12-13 19:18:01,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 44 states have internal predecessors, (49), 0 states have call successors, (0), 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 19:18:01,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-12-13 19:18:01,678 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 5 [2022-12-13 19:18:01,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:01,678 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-12-13 19:18:01,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 19:18:01,679 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-12-13 19:18:01,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 19:18:01,679 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:01,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:01,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:18:01,680 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 19:18:01,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:01,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1581722771, now seen corresponding path program 1 times [2022-12-13 19:18:01,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:01,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27587149] [2022-12-13 19:18:01,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:01,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:01,730 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 19:18:01,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:18:01,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27587149] [2022-12-13 19:18:01,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27587149] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:18:01,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:18:01,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:18:01,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828114949] [2022-12-13 19:18:01,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:18:01,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:18:01,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:18:01,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:18:01,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:18:01,733 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 19:18:01,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:01,785 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2022-12-13 19:18:01,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:18:01,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-12-13 19:18:01,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:01,787 INFO L225 Difference]: With dead ends: 55 [2022-12-13 19:18:01,787 INFO L226 Difference]: Without dead ends: 51 [2022-12-13 19:18:01,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:18:01,788 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:01,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 45 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:18:01,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-12-13 19:18:01,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-12-13 19:18:01,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 50 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:18:01,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2022-12-13 19:18:01,793 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 11 [2022-12-13 19:18:01,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:01,794 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2022-12-13 19:18:01,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 19:18:01,794 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2022-12-13 19:18:01,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 19:18:01,795 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:01,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:01,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 19:18:01,795 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 19:18:01,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:01,796 INFO L85 PathProgramCache]: Analyzing trace with hash -439505060, now seen corresponding path program 1 times [2022-12-13 19:18:01,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:01,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133024524] [2022-12-13 19:18:01,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:01,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:01,865 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 19:18:01,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:18:01,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133024524] [2022-12-13 19:18:01,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133024524] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:18:01,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:18:01,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:18:01,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334662484] [2022-12-13 19:18:01,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:18:01,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:18:01,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:18:01,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:18:01,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:18:01,867 INFO L87 Difference]: Start difference. First operand 51 states and 55 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 19:18:01,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:01,927 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2022-12-13 19:18:01,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:18:01,928 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 18 [2022-12-13 19:18:01,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:01,929 INFO L225 Difference]: With dead ends: 51 [2022-12-13 19:18:01,929 INFO L226 Difference]: Without dead ends: 47 [2022-12-13 19:18:01,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:18:01,930 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 29 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:01,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 25 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:18:01,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-12-13 19:18:01,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-12-13 19:18:01,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 43 states have (on average 1.186046511627907) internal successors, (51), 46 states have internal predecessors, (51), 0 states have call successors, (0), 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 19:18:01,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2022-12-13 19:18:01,935 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 18 [2022-12-13 19:18:01,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:01,935 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2022-12-13 19:18:01,935 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 19:18:01,935 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2022-12-13 19:18:01,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-13 19:18:01,936 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:01,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:01,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 19:18:01,937 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 19:18:01,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:01,937 INFO L85 PathProgramCache]: Analyzing trace with hash -739754871, now seen corresponding path program 1 times [2022-12-13 19:18:01,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:01,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696975585] [2022-12-13 19:18:01,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:01,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:02,000 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 19:18:02,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:18:02,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696975585] [2022-12-13 19:18:02,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696975585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:18:02,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:18:02,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:18:02,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798921034] [2022-12-13 19:18:02,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:18:02,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:18:02,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:18:02,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:18:02,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:18:02,002 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 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 19:18:02,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:02,073 INFO L93 Difference]: Finished difference Result 76 states and 83 transitions. [2022-12-13 19:18:02,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:18:02,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 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 19 [2022-12-13 19:18:02,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:02,074 INFO L225 Difference]: With dead ends: 76 [2022-12-13 19:18:02,074 INFO L226 Difference]: Without dead ends: 72 [2022-12-13 19:18:02,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:18:02,075 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 23 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:02,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 32 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:18:02,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-12-13 19:18:02,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-12-13 19:18:02,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 68 states have (on average 1.161764705882353) internal successors, (79), 71 states have internal predecessors, (79), 0 states have call successors, (0), 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 19:18:02,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2022-12-13 19:18:02,082 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 19 [2022-12-13 19:18:02,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:02,082 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2022-12-13 19:18:02,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 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 19:18:02,082 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2022-12-13 19:18:02,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 19:18:02,083 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:02,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:02,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 19:18:02,083 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 19:18:02,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:02,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1470876082, now seen corresponding path program 1 times [2022-12-13 19:18:02,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:02,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119185530] [2022-12-13 19:18:02,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:02,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:02,164 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 19:18:02,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:18:02,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119185530] [2022-12-13 19:18:02,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119185530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:18:02,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:18:02,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:18:02,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743939300] [2022-12-13 19:18:02,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:18:02,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:18:02,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:18:02,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:18:02,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:18:02,167 INFO L87 Difference]: Start difference. First operand 72 states and 79 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 19:18:02,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:02,257 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2022-12-13 19:18:02,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:18:02,257 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 25 [2022-12-13 19:18:02,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:02,258 INFO L225 Difference]: With dead ends: 102 [2022-12-13 19:18:02,258 INFO L226 Difference]: Without dead ends: 98 [2022-12-13 19:18:02,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:18:02,259 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 43 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:02,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 38 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:18:02,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-13 19:18:02,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-12-13 19:18:02,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 94 states have (on average 1.148936170212766) internal successors, (108), 97 states have internal predecessors, (108), 0 states have call successors, (0), 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 19:18:02,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2022-12-13 19:18:02,268 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 25 [2022-12-13 19:18:02,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:02,269 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2022-12-13 19:18:02,269 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 19:18:02,269 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2022-12-13 19:18:02,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-13 19:18:02,270 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:02,270 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:02,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 19:18:02,271 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 19:18:02,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:02,271 INFO L85 PathProgramCache]: Analyzing trace with hash 434529609, now seen corresponding path program 1 times [2022-12-13 19:18:02,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:02,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666096554] [2022-12-13 19:18:02,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:02,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:02,359 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:02,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:18:02,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666096554] [2022-12-13 19:18:02,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666096554] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:18:02,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158413854] [2022-12-13 19:18:02,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:02,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:18:02,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:18:02,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:18:02,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 19:18:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:02,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:18:02,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:18:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:02,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:18:02,569 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:02,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158413854] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:18:02,569 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:18:02,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-12-13 19:18:02,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400902660] [2022-12-13 19:18:02,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:18:02,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 19:18:02,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:18:02,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 19:18:02,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-12-13 19:18:02,571 INFO L87 Difference]: Start difference. First operand 98 states and 108 transitions. Second operand has 11 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:18:02,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:02,786 INFO L93 Difference]: Finished difference Result 232 states and 273 transitions. [2022-12-13 19:18:02,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 19:18:02,787 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-12-13 19:18:02,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:02,788 INFO L225 Difference]: With dead ends: 232 [2022-12-13 19:18:02,788 INFO L226 Difference]: Without dead ends: 228 [2022-12-13 19:18:02,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-12-13 19:18:02,789 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 190 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:02,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 75 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 19:18:02,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-12-13 19:18:02,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-12-13 19:18:02,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 224 states have (on average 1.1294642857142858) internal successors, (253), 227 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:18:02,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 253 transitions. [2022-12-13 19:18:02,805 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 253 transitions. Word has length 32 [2022-12-13 19:18:02,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:02,806 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 253 transitions. [2022-12-13 19:18:02,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:18:02,806 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 253 transitions. [2022-12-13 19:18:02,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 19:18:02,808 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:02,808 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:02,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:18:03,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 19:18:03,011 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 19:18:03,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:03,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2107299214, now seen corresponding path program 1 times [2022-12-13 19:18:03,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:03,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786026130] [2022-12-13 19:18:03,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:03,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:03,323 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:03,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:18:03,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786026130] [2022-12-13 19:18:03,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786026130] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:18:03,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754021371] [2022-12-13 19:18:03,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:03,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:18:03,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:18:03,325 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:18:03,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 19:18:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:03,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 19:18:03,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:18:03,483 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:03,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:18:03,643 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:03,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754021371] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:18:03,644 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:18:03,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2022-12-13 19:18:03,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810511540] [2022-12-13 19:18:03,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:18:03,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-13 19:18:03,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:18:03,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-13 19:18:03,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2022-12-13 19:18:03,646 INFO L87 Difference]: Start difference. First operand 228 states and 253 transitions. Second operand has 21 states, 20 states have (on average 6.8) internal successors, (136), 21 states have internal predecessors, (136), 0 states have call successors, (0), 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 19:18:04,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:04,110 INFO L93 Difference]: Finished difference Result 492 states and 583 transitions. [2022-12-13 19:18:04,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 19:18:04,110 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 6.8) internal successors, (136), 21 states have internal predecessors, (136), 0 states have call successors, (0), 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 64 [2022-12-13 19:18:04,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:04,112 INFO L225 Difference]: With dead ends: 492 [2022-12-13 19:18:04,112 INFO L226 Difference]: Without dead ends: 488 [2022-12-13 19:18:04,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2022-12-13 19:18:04,114 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 703 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:04,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 134 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 19:18:04,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-12-13 19:18:04,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2022-12-13 19:18:04,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 484 states have (on average 1.121900826446281) internal successors, (543), 487 states have internal predecessors, (543), 0 states have call successors, (0), 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 19:18:04,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 543 transitions. [2022-12-13 19:18:04,138 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 543 transitions. Word has length 64 [2022-12-13 19:18:04,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:04,138 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 543 transitions. [2022-12-13 19:18:04,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 6.8) internal successors, (136), 21 states have internal predecessors, (136), 0 states have call successors, (0), 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 19:18:04,139 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 543 transitions. [2022-12-13 19:18:04,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-12-13 19:18:04,144 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:04,144 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:04,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 19:18:04,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:18:04,346 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 19:18:04,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:04,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1327453774, now seen corresponding path program 2 times [2022-12-13 19:18:04,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:04,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201246578] [2022-12-13 19:18:04,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:04,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:04,861 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 468 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:04,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:18:04,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201246578] [2022-12-13 19:18:04,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201246578] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:18:04,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769216371] [2022-12-13 19:18:04,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:18:04,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:18:04,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:18:04,863 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:18:04,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 19:18:04,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 19:18:04,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:18:04,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 19:18:04,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:18:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2022-12-13 19:18:05,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:18:05,354 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2022-12-13 19:18:05,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769216371] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:18:05,354 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:18:05,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 6, 6] total 29 [2022-12-13 19:18:05,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89255617] [2022-12-13 19:18:05,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:18:05,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-13 19:18:05,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:18:05,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-13 19:18:05,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=552, Unknown=0, NotChecked=0, Total=870 [2022-12-13 19:18:05,357 INFO L87 Difference]: Start difference. First operand 488 states and 543 transitions. Second operand has 30 states, 29 states have (on average 6.517241379310345) internal successors, (189), 30 states have internal predecessors, (189), 0 states have call successors, (0), 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 19:18:07,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:07,330 INFO L93 Difference]: Finished difference Result 762 states and 871 transitions. [2022-12-13 19:18:07,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-12-13 19:18:07,331 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 6.517241379310345) internal successors, (189), 30 states have internal predecessors, (189), 0 states have call successors, (0), 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 129 [2022-12-13 19:18:07,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:07,331 INFO L225 Difference]: With dead ends: 762 [2022-12-13 19:18:07,332 INFO L226 Difference]: Without dead ends: 179 [2022-12-13 19:18:07,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 247 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4029 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=3668, Invalid=8764, Unknown=0, NotChecked=0, Total=12432 [2022-12-13 19:18:07,335 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2904 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:07,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2904 Valid, 160 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 19:18:07,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-12-13 19:18:07,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-12-13 19:18:07,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 176 states have (on average 1.0227272727272727) internal successors, (180), 178 states have internal predecessors, (180), 0 states have call successors, (0), 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 19:18:07,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 180 transitions. [2022-12-13 19:18:07,340 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 180 transitions. Word has length 129 [2022-12-13 19:18:07,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:07,340 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 180 transitions. [2022-12-13 19:18:07,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 6.517241379310345) internal successors, (189), 30 states have internal predecessors, (189), 0 states have call successors, (0), 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 19:18:07,340 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 180 transitions. [2022-12-13 19:18:07,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-13 19:18:07,341 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:07,341 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:07,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 19:18:07,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:18:07,542 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 19:18:07,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:07,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1138679105, now seen corresponding path program 1 times [2022-12-13 19:18:07,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:07,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586266201] [2022-12-13 19:18:07,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:07,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:08,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 0 proven. 1533 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:08,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:18:08,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586266201] [2022-12-13 19:18:08,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586266201] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:18:08,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916927328] [2022-12-13 19:18:08,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:08,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:18:08,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:18:08,074 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:18:08,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 19:18:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:08,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 19:18:08,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:18:08,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 0 proven. 1533 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:08,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:18:08,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 0 proven. 1533 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:08,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916927328] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:18:08,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:18:08,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2022-12-13 19:18:08,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208425791] [2022-12-13 19:18:08,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:18:08,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-12-13 19:18:08,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:18:08,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-12-13 19:18:08,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2022-12-13 19:18:08,895 INFO L87 Difference]: Start difference. First operand 179 states and 180 transitions. Second operand has 47 states, 46 states have (on average 7.086956521739131) internal successors, (326), 47 states have internal predecessors, (326), 0 states have call successors, (0), 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 19:18:09,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:09,378 INFO L93 Difference]: Finished difference Result 619 states and 686 transitions. [2022-12-13 19:18:09,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-13 19:18:09,378 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 7.086956521739131) internal successors, (326), 47 states have internal predecessors, (326), 0 states have call successors, (0), 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 159 [2022-12-13 19:18:09,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:09,379 INFO L225 Difference]: With dead ends: 619 [2022-12-13 19:18:09,379 INFO L226 Difference]: Without dead ends: 340 [2022-12-13 19:18:09,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2022-12-13 19:18:09,381 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 711 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:09,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 120 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 19:18:09,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-12-13 19:18:09,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2022-12-13 19:18:09,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 337 states have (on average 1.0118694362017804) internal successors, (341), 339 states have internal predecessors, (341), 0 states have call successors, (0), 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 19:18:09,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 341 transitions. [2022-12-13 19:18:09,387 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 341 transitions. Word has length 159 [2022-12-13 19:18:09,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:09,387 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 341 transitions. [2022-12-13 19:18:09,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 7.086956521739131) internal successors, (326), 47 states have internal predecessors, (326), 0 states have call successors, (0), 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 19:18:09,387 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 341 transitions. [2022-12-13 19:18:09,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-12-13 19:18:09,390 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:09,390 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:09,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 19:18:09,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 19:18:09,592 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 19:18:09,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:09,594 INFO L85 PathProgramCache]: Analyzing trace with hash -140856590, now seen corresponding path program 2 times [2022-12-13 19:18:09,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:09,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790707927] [2022-12-13 19:18:09,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:09,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:11,299 INFO L134 CoverageAnalysis]: Checked inductivity of 6754 backedges. 0 proven. 6754 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:11,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:18:11,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790707927] [2022-12-13 19:18:11,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790707927] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:18:11,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599805266] [2022-12-13 19:18:11,300 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:18:11,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:18:11,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:18:11,301 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:18:11,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 19:18:11,471 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 19:18:11,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:18:11,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 46 conjunts are in the unsatisfiable core [2022-12-13 19:18:11,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:18:11,762 INFO L134 CoverageAnalysis]: Checked inductivity of 6754 backedges. 0 proven. 6754 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:11,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:18:13,417 INFO L134 CoverageAnalysis]: Checked inductivity of 6754 backedges. 0 proven. 6754 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:13,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599805266] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:18:13,418 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:18:13,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 92 [2022-12-13 19:18:13,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370963458] [2022-12-13 19:18:13,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:18:13,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2022-12-13 19:18:13,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:18:13,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2022-12-13 19:18:13,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2022-12-13 19:18:13,424 INFO L87 Difference]: Start difference. First operand 340 states and 341 transitions. Second operand has 93 states, 92 states have (on average 7.043478260869565) internal successors, (648), 93 states have internal predecessors, (648), 0 states have call successors, (0), 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 19:18:14,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:14,523 INFO L93 Difference]: Finished difference Result 1217 states and 1353 transitions. [2022-12-13 19:18:14,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-12-13 19:18:14,523 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 92 states have (on average 7.043478260869565) internal successors, (648), 93 states have internal predecessors, (648), 0 states have call successors, (0), 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 320 [2022-12-13 19:18:14,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:14,524 INFO L225 Difference]: With dead ends: 1217 [2022-12-13 19:18:14,525 INFO L226 Difference]: Without dead ends: 662 [2022-12-13 19:18:14,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 593 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2022-12-13 19:18:14,526 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1563 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:14,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 206 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 19:18:14,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2022-12-13 19:18:14,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2022-12-13 19:18:14,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 659 states have (on average 1.0060698027314112) internal successors, (663), 661 states have internal predecessors, (663), 0 states have call successors, (0), 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 19:18:14,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 663 transitions. [2022-12-13 19:18:14,542 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 663 transitions. Word has length 320 [2022-12-13 19:18:14,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:14,542 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 663 transitions. [2022-12-13 19:18:14,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 92 states have (on average 7.043478260869565) internal successors, (648), 93 states have internal predecessors, (648), 0 states have call successors, (0), 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 19:18:14,543 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 663 transitions. [2022-12-13 19:18:14,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2022-12-13 19:18:14,552 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:14,552 INFO L195 NwaCegarLoop]: trace histogram [91, 91, 90, 90, 90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:14,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 19:18:14,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:18:14,754 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 19:18:14,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:14,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1419193554, now seen corresponding path program 3 times [2022-12-13 19:18:14,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:14,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073866986] [2022-12-13 19:18:14,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:14,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:20,637 INFO L134 CoverageAnalysis]: Checked inductivity of 28305 backedges. 0 proven. 28305 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:20,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:18:20,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073866986] [2022-12-13 19:18:20,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073866986] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:18:20,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136335548] [2022-12-13 19:18:20,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 19:18:20,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:18:20,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:18:20,638 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:18:20,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 19:18:20,729 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 19:18:20,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:18:20,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 19:18:20,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:18:21,415 INFO L134 CoverageAnalysis]: Checked inductivity of 28305 backedges. 178 proven. 359 refuted. 0 times theorem prover too weak. 27768 trivial. 0 not checked. [2022-12-13 19:18:21,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:18:22,181 INFO L134 CoverageAnalysis]: Checked inductivity of 28305 backedges. 0 proven. 537 refuted. 0 times theorem prover too weak. 27768 trivial. 0 not checked. [2022-12-13 19:18:22,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136335548] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:18:22,182 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:18:22,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 6, 6] total 101 [2022-12-13 19:18:22,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978594919] [2022-12-13 19:18:22,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:18:22,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-12-13 19:18:22,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:18:22,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-12-13 19:18:22,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4674, Invalid=5628, Unknown=0, NotChecked=0, Total=10302 [2022-12-13 19:18:22,187 INFO L87 Difference]: Start difference. First operand 662 states and 663 transitions. Second operand has 102 states, 101 states have (on average 6.792079207920792) internal successors, (686), 102 states have internal predecessors, (686), 0 states have call successors, (0), 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 19:18:31,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:31,595 INFO L93 Difference]: Finished difference Result 705 states and 710 transitions. [2022-12-13 19:18:31,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2022-12-13 19:18:31,595 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 101 states have (on average 6.792079207920792) internal successors, (686), 102 states have internal predecessors, (686), 0 states have call successors, (0), 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 642 [2022-12-13 19:18:31,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:31,597 INFO L225 Difference]: With dead ends: 705 [2022-12-13 19:18:31,597 INFO L226 Difference]: Without dead ends: 666 [2022-12-13 19:18:31,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1563 GetRequests, 1273 SyntacticMatches, 1 SemanticMatches, 289 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22334 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=27867, Invalid=56523, Unknown=0, NotChecked=0, Total=84390 [2022-12-13 19:18:31,604 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1067 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:31,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 34 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 19:18:31,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-12-13 19:18:31,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 664. [2022-12-13 19:18:31,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 663 states have (on average 1.0015082956259427) internal successors, (664), 663 states have internal predecessors, (664), 0 states have call successors, (0), 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 19:18:31,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 664 transitions. [2022-12-13 19:18:31,615 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 664 transitions. Word has length 642 [2022-12-13 19:18:31,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:31,616 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 664 transitions. [2022-12-13 19:18:31,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 101 states have (on average 6.792079207920792) internal successors, (686), 102 states have internal predecessors, (686), 0 states have call successors, (0), 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 19:18:31,616 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 664 transitions. [2022-12-13 19:18:31,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2022-12-13 19:18:31,619 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:31,620 INFO L195 NwaCegarLoop]: trace histogram [92, 92, 92, 92, 91, 91, 91, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:31,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-13 19:18:31,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:18:31,822 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 19:18:31,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:31,823 INFO L85 PathProgramCache]: Analyzing trace with hash -204675097, now seen corresponding path program 1 times [2022-12-13 19:18:31,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:31,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613449261] [2022-12-13 19:18:31,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:31,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:37,701 INFO L134 CoverageAnalysis]: Checked inductivity of 29120 backedges. 0 proven. 29120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:37,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:18:37,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613449261] [2022-12-13 19:18:37,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613449261] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:18:37,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444432130] [2022-12-13 19:18:37,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:37,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:18:37,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:18:37,702 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:18:37,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 19:18:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:38,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 95 conjunts are in the unsatisfiable core [2022-12-13 19:18:38,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:18:38,470 INFO L134 CoverageAnalysis]: Checked inductivity of 29120 backedges. 0 proven. 29120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:38,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:18:44,717 INFO L134 CoverageAnalysis]: Checked inductivity of 29120 backedges. 0 proven. 29120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:44,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444432130] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:18:44,718 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:18:44,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 190 [2022-12-13 19:18:44,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384504773] [2022-12-13 19:18:44,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:18:44,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2022-12-13 19:18:44,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:18:44,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2022-12-13 19:18:44,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18145, Invalid=18145, Unknown=0, NotChecked=0, Total=36290 [2022-12-13 19:18:44,725 INFO L87 Difference]: Start difference. First operand 664 states and 664 transitions. Second operand has 191 states, 190 states have (on average 7.021052631578947) internal successors, (1334), 191 states have internal predecessors, (1334), 0 states have call successors, (0), 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 19:18:50,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:50,650 INFO L93 Difference]: Finished difference Result 2487 states and 2582 transitions. [2022-12-13 19:18:50,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-12-13 19:18:50,651 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 190 states have (on average 7.021052631578947) internal successors, (1334), 191 states have internal predecessors, (1334), 0 states have call successors, (0), 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 663 [2022-12-13 19:18:50,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:50,656 INFO L225 Difference]: With dead ends: 2487 [2022-12-13 19:18:50,656 INFO L226 Difference]: Without dead ends: 1346 [2022-12-13 19:18:50,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1419 GetRequests, 1230 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=18145, Invalid=18145, Unknown=0, NotChecked=0, Total=36290 [2022-12-13 19:18:50,658 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3483 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 2163 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3483 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 2478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 2163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:50,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3483 Valid, 407 Invalid, 2478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 2163 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 19:18:50,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2022-12-13 19:18:50,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1329. [2022-12-13 19:18:50,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1329 states, 1328 states have (on average 1.0007530120481927) internal successors, (1329), 1328 states have internal predecessors, (1329), 0 states have call successors, (0), 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 19:18:50,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 1329 transitions. [2022-12-13 19:18:50,681 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 1329 transitions. Word has length 663 [2022-12-13 19:18:50,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:50,682 INFO L495 AbstractCegarLoop]: Abstraction has 1329 states and 1329 transitions. [2022-12-13 19:18:50,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 190 states have (on average 7.021052631578947) internal successors, (1334), 191 states have internal predecessors, (1334), 0 states have call successors, (0), 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 19:18:50,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 1329 transitions. [2022-12-13 19:18:50,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1329 [2022-12-13 19:18:50,694 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:50,694 INFO L195 NwaCegarLoop]: trace histogram [187, 187, 187, 187, 186, 186, 186, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:50,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 19:18:50,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 19:18:50,896 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-13 19:18:50,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:50,897 INFO L85 PathProgramCache]: Analyzing trace with hash -835504360, now seen corresponding path program 2 times [2022-12-13 19:18:50,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:50,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456733834] [2022-12-13 19:18:50,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:50,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:19:22,802 INFO L134 CoverageAnalysis]: Checked inductivity of 121365 backedges. 0 proven. 121365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:19:22,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:19:22,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456733834] [2022-12-13 19:19:22,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456733834] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:19:22,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603161618] [2022-12-13 19:19:22,802 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:19:22,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:19:22,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:19:22,803 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:19:22,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 19:19:22,938 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 19:19:22,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:19:22,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 19:19:22,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:19:24,289 INFO L134 CoverageAnalysis]: Checked inductivity of 121365 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 121365 trivial. 0 not checked. [2022-12-13 19:19:24,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:19:24,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603161618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:19:24,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:19:24,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [190] total 195 [2022-12-13 19:19:24,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756602709] [2022-12-13 19:19:24,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:19:24,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:19:24,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:19:24,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:19:24,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18347, Invalid=19873, Unknown=0, NotChecked=0, Total=38220 [2022-12-13 19:19:24,294 INFO L87 Difference]: Start difference. First operand 1329 states and 1329 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:24,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:19:24,650 INFO L93 Difference]: Finished difference Result 1329 states and 1329 transitions. [2022-12-13 19:19:24,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 19:19:24,651 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1328 [2022-12-13 19:19:24,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:19:24,653 INFO L225 Difference]: With dead ends: 1329 [2022-12-13 19:19:24,653 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 19:19:24,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1522 GetRequests, 1323 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=18382, Invalid=21818, Unknown=0, NotChecked=0, Total=40200 [2022-12-13 19:19:24,657 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 31 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:19:24,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 17 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:19:24,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 19:19:24,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 19:19:24,658 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 19:19:24,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 19:19:24,658 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1328 [2022-12-13 19:19:24,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:19:24,658 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 19:19:24,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:19:24,659 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 19:19:24,659 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 19:19:24,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-12-13 19:19:24,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-12-13 19:19:24,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-12-13 19:19:24,662 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-12-13 19:19:24,662 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-12-13 19:19:24,662 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-12-13 19:19:24,662 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-12-13 19:19:24,662 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-12-13 19:19:24,662 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-12-13 19:19:24,662 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-12-13 19:19:24,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-13 19:19:24,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 19:19:24,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 19:19:28,245 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-12-13 19:19:28,245 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 242) no Hoare annotation was computed. [2022-12-13 19:19:28,245 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 15 402) the Hoare annotation is: true [2022-12-13 19:19:28,246 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 194) no Hoare annotation was computed. [2022-12-13 19:19:28,246 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-13 19:19:28,246 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2022-12-13 19:19:28,246 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 19:19:28,246 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2022-12-13 19:19:28,246 INFO L895 garLoopResultBuilder]: At program point L284(lines 282 391) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646)) (.cse1 (not (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)))) (or (and .cse0 (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (or (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~19#1| 1) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~19#1| 0)) .cse1 (<= |ULTIMATE.start_main_~main__t~0#1| 2147483645)) (and .cse0 (= |ULTIMATE.start_main_~main__t~0#1| 0) .cse1))) [2022-12-13 19:19:28,246 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2022-12-13 19:19:28,246 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 401) no Hoare annotation was computed. [2022-12-13 19:19:28,247 INFO L899 garLoopResultBuilder]: For program point L276(lines 276 391) no Hoare annotation was computed. [2022-12-13 19:19:28,247 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 287) no Hoare annotation was computed. [2022-12-13 19:19:28,247 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 94) no Hoare annotation was computed. [2022-12-13 19:19:28,247 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-12-13 19:19:28,247 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-13 19:19:28,247 INFO L899 garLoopResultBuilder]: For program point L194-1(line 194) no Hoare annotation was computed. [2022-12-13 19:19:28,247 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 196) no Hoare annotation was computed. [2022-12-13 19:19:28,247 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 385) no Hoare annotation was computed. [2022-12-13 19:19:28,247 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 352) no Hoare annotation was computed. [2022-12-13 19:19:28,247 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 203) no Hoare annotation was computed. [2022-12-13 19:19:28,247 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 287) no Hoare annotation was computed. [2022-12-13 19:19:28,247 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 19:19:28,247 INFO L895 garLoopResultBuilder]: At program point $Ultimate##12(lines 63 252) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= 1 |ULTIMATE.start_main_~main__t~0#1|)) [2022-12-13 19:19:28,247 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 209) no Hoare annotation was computed. [2022-12-13 19:19:28,247 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 255) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 317) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point L287(line 287) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point L287-1(line 287) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L902 garLoopResultBuilder]: At program point L89(lines 32 395) the Hoare annotation is: true [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 395) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 390) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 244) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 132) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 396) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 92) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 162) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point L132(line 132) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point L132-1(line 132) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 19:19:28,248 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 201) no Hoare annotation was computed. [2022-12-13 19:19:28,249 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 132) no Hoare annotation was computed. [2022-12-13 19:19:28,249 INFO L895 garLoopResultBuilder]: At program point L58(lines 32 395) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646)) (.cse1 (not (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)))) (or (and (<= |ULTIMATE.start_main_~main__t~0#1| 2147483646) .cse0 (<= 1 |ULTIMATE.start_main_~main__t~0#1|) .cse1) (and .cse0 (= |ULTIMATE.start_main_~main__t~0#1| 0) .cse1))) [2022-12-13 19:19:28,249 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 250) no Hoare annotation was computed. [2022-12-13 19:19:28,249 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 253) no Hoare annotation was computed. [2022-12-13 19:19:28,249 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 198) no Hoare annotation was computed. [2022-12-13 19:19:28,249 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 387) no Hoare annotation was computed. [2022-12-13 19:19:28,249 INFO L899 garLoopResultBuilder]: For program point L331(lines 331 354) no Hoare annotation was computed. [2022-12-13 19:19:28,249 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 393) no Hoare annotation was computed. [2022-12-13 19:19:28,249 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 200) no Hoare annotation was computed. [2022-12-13 19:19:28,249 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-12-13 19:19:28,249 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 315) no Hoare annotation was computed. [2022-12-13 19:19:28,249 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 194) no Hoare annotation was computed. [2022-12-13 19:19:28,249 INFO L895 garLoopResultBuilder]: At program point L167(lines 101 251) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (not (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|))) [2022-12-13 19:19:28,249 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 251) no Hoare annotation was computed. [2022-12-13 19:19:28,249 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 389) no Hoare annotation was computed. [2022-12-13 19:19:28,252 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:19:28,253 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:19:28,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:19:28 BoogieIcfgContainer [2022-12-13 19:19:28,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:19:28,263 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:19:28,263 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:19:28,263 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:19:28,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:18:01" (3/4) ... [2022-12-13 19:19:28,265 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 19:19:28,273 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-13 19:19:28,273 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 19:19:28,273 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 19:19:28,273 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 19:19:28,304 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:19:28,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:19:28,304 INFO L158 Benchmark]: Toolchain (without parser) took 87618.37ms. Allocated memory was 115.3MB in the beginning and 1.0GB in the end (delta: 908.1MB). Free memory was 83.4MB in the beginning and 575.7MB in the end (delta: -492.2MB). Peak memory consumption was 417.3MB. Max. memory is 16.1GB. [2022-12-13 19:19:28,304 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 115.3MB. Free memory was 79.7MB in the beginning and 79.6MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:19:28,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.37ms. Allocated memory is still 115.3MB. Free memory was 83.4MB in the beginning and 66.8MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 19:19:28,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.18ms. Allocated memory is still 115.3MB. Free memory was 66.8MB in the beginning and 64.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:19:28,305 INFO L158 Benchmark]: Boogie Preprocessor took 17.03ms. Allocated memory is still 115.3MB. Free memory was 64.6MB in the beginning and 63.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:19:28,305 INFO L158 Benchmark]: RCFGBuilder took 304.63ms. Allocated memory is still 115.3MB. Free memory was 63.5MB in the beginning and 47.5MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 19:19:28,305 INFO L158 Benchmark]: TraceAbstraction took 86990.24ms. Allocated memory was 115.3MB in the beginning and 1.0GB in the end (delta: 908.1MB). Free memory was 46.7MB in the beginning and 580.9MB in the end (delta: -534.2MB). Peak memory consumption was 633.3MB. Max. memory is 16.1GB. [2022-12-13 19:19:28,305 INFO L158 Benchmark]: Witness Printer took 40.74ms. Allocated memory is still 1.0GB. Free memory was 580.9MB in the beginning and 575.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 19:19:28,306 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 115.3MB. Free memory was 79.7MB in the beginning and 79.6MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.37ms. Allocated memory is still 115.3MB. Free memory was 83.4MB in the beginning and 66.8MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.18ms. Allocated memory is still 115.3MB. Free memory was 66.8MB in the beginning and 64.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.03ms. Allocated memory is still 115.3MB. Free memory was 64.6MB in the beginning and 63.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 304.63ms. Allocated memory is still 115.3MB. Free memory was 63.5MB in the beginning and 47.5MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 86990.24ms. Allocated memory was 115.3MB in the beginning and 1.0GB in the end (delta: 908.1MB). Free memory was 46.7MB in the beginning and 580.9MB in the end (delta: -534.2MB). Peak memory consumption was 633.3MB. Max. memory is 16.1GB. * Witness Printer took 40.74ms. Allocated memory is still 1.0GB. Free memory was 580.9MB in the beginning and 575.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 194]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 194]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 287]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 287]: 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, 59 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 86.9s, OverallIterations: 14, TraceHistogramMax: 187, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 20.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10799 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10799 mSDsluCounter, 1441 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1160 mSDsCounter, 1245 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6380 IncrementalHoareTripleChecker+Invalid, 7625 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1245 mSolverCounterUnsat, 281 mSDtfsCounter, 6380 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6104 GetRequests, 5141 SyntacticMatches, 2 SemanticMatches, 961 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27799 ImplicationChecksByTransitivity, 31.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1329occurred in iteration=13, InterpolantAutomatonStates: 671, 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, 14 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 533 NumberOfFragments, 79 HoareAnnotationTreeSize, 6 FomulaSimplifications, 3292 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 6 FomulaSimplificationsInter, 7760 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 59.1s InterpolantComputationTime, 6756 NumberOfCodeBlocks, 4727 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 8736 ConstructedInterpolants, 0 QuantifiedInterpolants, 26187 SizeOfPredicates, 11 NumberOfNonLiveVariables, 5169 ConjunctsInSsa, 206 ConjunctsInUnsatCore, 29 InterpolantComputations, 7 PerfectInterpolantSequences, 177951/441525 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 10 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: main__tagbuf_len <= 2147483646 && 1 <= main__t - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: ((((main__tagbuf_len <= 2147483646 && 1 <= main__t) && (__VERIFIER_assert__cond == 1 || __VERIFIER_assert__cond == 0)) && !(main__t == main__tagbuf_len)) && main__t <= 2147483645) || ((main__tagbuf_len <= 2147483646 && main__t == 0) && !(main__t == main__tagbuf_len)) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (main__tagbuf_len <= 2147483646 && 1 <= main__t) && !(main__t == main__tagbuf_len) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((main__t <= 2147483646 && main__tagbuf_len <= 2147483646) && 1 <= main__t) && !(main__t == main__tagbuf_len)) || ((main__tagbuf_len <= 2147483646 && main__t == 0) && !(main__t == main__tagbuf_len)) RESULT: Ultimate proved your program to be correct! [2022-12-13 19:19:28,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54840d6b-9259-4d23-9fe1-d2624b833737/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