./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 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/config/TaipanReach.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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW --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 Taipan --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-4e7fbc6 [2022-11-23 14:22:58,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:22:58,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:22:58,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:22:58,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:22:58,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:22:58,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:22:58,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:22:58,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:22:58,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:22:58,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:22:58,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:22:58,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:22:58,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:22:58,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:22:58,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:22:58,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:22:58,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:22:58,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:22:58,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:22:58,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:22:58,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:22:58,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:22:58,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:22:58,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:22:58,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:22:58,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:22:58,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:22:58,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:22:58,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:22:58,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:22:58,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:22:58,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:22:58,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:22:58,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:22:58,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:22:58,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:22:58,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:22:58,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:22:58,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:22:58,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:22:58,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 14:22:58,307 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:22:58,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:22:58,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:22:58,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:22:58,309 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:22:58,309 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:22:58,309 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:22:58,310 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:22:58,310 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:22:58,310 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:22:58,311 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:22:58,311 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:22:58,311 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:22:58,312 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:22:58,312 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:22:58,312 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:22:58,312 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:22:58,312 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:22:58,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:22:58,313 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:22:58,313 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:22:58,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:22:58,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:22:58,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:22:58,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:22:58,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:22:58,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:22:58,314 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:22:58,315 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:22:58,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:22:58,315 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:22:58,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:22:58,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:22:58,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:22:58,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:22:58,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:22:58,317 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:22:58,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:22:58,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:22:58,318 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:22:58,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:22:58,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:22:58,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:22:58,319 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 [2022-11-23 14:22:58,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:22:58,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:22:58,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:22:58,641 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:22:58,641 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:22:58,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-11-23 14:23:01,578 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:23:01,818 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:23:01,819 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-11-23 14:23:01,828 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/data/6712b449e/dad85e9df21a47389d4eac64257f8312/FLAG3f05a124f [2022-11-23 14:23:01,842 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/data/6712b449e/dad85e9df21a47389d4eac64257f8312 [2022-11-23 14:23:01,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:23:01,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:23:01,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:23:01,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:23:01,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:23:01,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:23:01" (1/1) ... [2022-11-23 14:23:01,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53402c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:01, skipping insertion in model container [2022-11-23 14:23:01,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:23:01" (1/1) ... [2022-11-23 14:23:01,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:23:01,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:23:02,089 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-11-23 14:23:02,093 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-11-23 14:23:02,102 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-11-23 14:23:02,110 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-11-23 14:23:02,111 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-11-23 14:23:02,113 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-11-23 14:23:02,115 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-11-23 14:23:02,119 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-11-23 14:23:02,123 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-11-23 14:23:02,126 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-11-23 14:23:02,127 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-11-23 14:23:02,129 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-11-23 14:23:02,131 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-11-23 14:23:02,132 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-11-23 14:23:02,134 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-11-23 14:23:02,135 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-11-23 14:23:02,136 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-11-23 14:23:02,138 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-11-23 14:23:02,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:23:02,153 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:23:02,176 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-11-23 14:23:02,178 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-11-23 14:23:02,179 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-11-23 14:23:02,181 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-11-23 14:23:02,183 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-11-23 14:23:02,185 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-11-23 14:23:02,186 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-11-23 14:23:02,187 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-11-23 14:23:02,189 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-11-23 14:23:02,191 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-11-23 14:23:02,192 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-11-23 14:23:02,194 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-11-23 14:23:02,196 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-11-23 14:23:02,197 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-11-23 14:23:02,199 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-11-23 14:23:02,200 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-11-23 14:23:02,201 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-11-23 14:23:02,202 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_fca7f861-f4cc-4d14-af71-e9a231f28ed3/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-11-23 14:23:02,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:23:02,217 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:23:02,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:02 WrapperNode [2022-11-23 14:23:02,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:23:02,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:23:02,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:23:02,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:23:02,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:02" (1/1) ... [2022-11-23 14:23:02,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:02" (1/1) ... [2022-11-23 14:23:02,270 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 254 [2022-11-23 14:23:02,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:23:02,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:23:02,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:23:02,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:23:02,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:02" (1/1) ... [2022-11-23 14:23:02,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:02" (1/1) ... [2022-11-23 14:23:02,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:02" (1/1) ... [2022-11-23 14:23:02,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:02" (1/1) ... [2022-11-23 14:23:02,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:02" (1/1) ... [2022-11-23 14:23:02,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:02" (1/1) ... [2022-11-23 14:23:02,292 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:02" (1/1) ... [2022-11-23 14:23:02,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:02" (1/1) ... [2022-11-23 14:23:02,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:23:02,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:23:02,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:23:02,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:23:02,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:02" (1/1) ... [2022-11-23 14:23:02,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:23:02,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:23:02,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:23:02,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:23:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:23:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:23:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:23:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:23:02,463 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:23:02,465 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:23:02,705 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:23:02,737 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:23:02,738 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:23:02,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:02 BoogieIcfgContainer [2022-11-23 14:23:02,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:23:02,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:23:02,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:23:02,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:23:02,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:23:01" (1/3) ... [2022-11-23 14:23:02,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e40d1ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:02, skipping insertion in model container [2022-11-23 14:23:02,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:02" (2/3) ... [2022-11-23 14:23:02,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e40d1ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:02, skipping insertion in model container [2022-11-23 14:23:02,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:02" (3/3) ... [2022-11-23 14:23:02,765 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+lhb-reducer.c [2022-11-23 14:23:02,800 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:23:02,800 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-23 14:23:02,899 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:23:02,911 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=FINITE_AUTOMATA, 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;@517b3b7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:23:02,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-23 14:23:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 46 states have (on average 1.8695652173913044) internal successors, (86), 56 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:02,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-23 14:23:02,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:02,924 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-23 14:23:02,924 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 14:23:02,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:02,938 INFO L85 PathProgramCache]: Analyzing trace with hash 207737, now seen corresponding path program 1 times [2022-11-23 14:23:02,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:02,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505498951] [2022-11-23 14:23:02,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:02,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:03,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:03,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:03,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505498951] [2022-11-23 14:23:03,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505498951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:03,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:03,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:23:03,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664962544] [2022-11-23 14:23:03,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:03,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:23:03,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:03,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:23:03,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:03,259 INFO L87 Difference]: Start difference. First operand has 57 states, 46 states have (on average 1.8695652173913044) internal successors, (86), 56 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:03,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:03,368 INFO L93 Difference]: Finished difference Result 59 states and 87 transitions. [2022-11-23 14:23:03,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:23:03,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-11-23 14:23:03,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:03,380 INFO L225 Difference]: With dead ends: 59 [2022-11-23 14:23:03,380 INFO L226 Difference]: Without dead ends: 45 [2022-11-23 14:23:03,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:03,387 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 2 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:03,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 104 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:23:03,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-23 14:23:03,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-23 14:23:03,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 1.3611111111111112) 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) [2022-11-23 14:23:03,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-11-23 14:23:03,423 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 3 [2022-11-23 14:23:03,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:03,424 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-11-23 14:23:03,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:03,424 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-11-23 14:23:03,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:23:03,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:03,426 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:23:03,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:23:03,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 14:23:03,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:03,432 INFO L85 PathProgramCache]: Analyzing trace with hash 6439886, now seen corresponding path program 1 times [2022-11-23 14:23:03,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:03,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994991646] [2022-11-23 14:23:03,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:03,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:03,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:03,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:03,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994991646] [2022-11-23 14:23:03,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994991646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:03,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:03,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:23:03,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159007534] [2022-11-23 14:23:03,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:03,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:23:03,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:03,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:23:03,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:03,482 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-11-23 14:23:03,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:03,509 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-11-23 14:23:03,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:23:03,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2022-11-23 14:23:03,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:03,510 INFO L225 Difference]: With dead ends: 45 [2022-11-23 14:23:03,510 INFO L226 Difference]: Without dead ends: 44 [2022-11-23 14:23:03,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:03,512 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:03,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 34 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:23:03,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-23 14:23:03,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-23 14:23:03,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 43 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:03,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-11-23 14:23:03,520 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 4 [2022-11-23 14:23:03,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:03,520 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-11-23 14:23:03,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-11-23 14:23:03,521 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-11-23 14:23:03,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 14:23:03,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:03,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:03,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:23:03,522 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 14:23:03,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:03,523 INFO L85 PathProgramCache]: Analyzing trace with hash -815022600, now seen corresponding path program 1 times [2022-11-23 14:23:03,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:03,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476805580] [2022-11-23 14:23:03,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:03,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:03,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:03,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:03,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476805580] [2022-11-23 14:23:03,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476805580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:03,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:03,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:23:03,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946827219] [2022-11-23 14:23:03,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:03,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:23:03,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:03,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:23:03,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:03,603 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:03,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:03,701 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2022-11-23 14:23:03,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:23:03,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-23 14:23:03,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:03,702 INFO L225 Difference]: With dead ends: 54 [2022-11-23 14:23:03,703 INFO L226 Difference]: Without dead ends: 50 [2022-11-23 14:23:03,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:03,705 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 6 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:03,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 42 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:23:03,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-23 14:23:03,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-23 14:23:03,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 49 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:03,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-11-23 14:23:03,720 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 10 [2022-11-23 14:23:03,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:03,720 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-11-23 14:23:03,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:03,721 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-11-23 14:23:03,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 14:23:03,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:03,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:03,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:23:03,723 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)] === [2022-11-23 14:23:03,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:03,723 INFO L85 PathProgramCache]: Analyzing trace with hash -2044534159, now seen corresponding path program 1 times [2022-11-23 14:23:03,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:03,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725749423] [2022-11-23 14:23:03,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:03,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:03,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:03,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725749423] [2022-11-23 14:23:03,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725749423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:03,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:03,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:23:03,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974394528] [2022-11-23 14:23:03,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:03,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:23:03,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:03,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:23:03,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:23:03,874 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:03,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:03,967 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2022-11-23 14:23:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:23:03,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-23 14:23:03,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:03,968 INFO L225 Difference]: With dead ends: 50 [2022-11-23 14:23:03,969 INFO L226 Difference]: Without dead ends: 46 [2022-11-23 14:23:03,969 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 [2022-11-23 14:23:03,970 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 29 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:03,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 21 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:23:03,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-23 14:23:03,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-23 14:23:03,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.1904761904761905) 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) [2022-11-23 14:23:03,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-11-23 14:23:03,977 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 17 [2022-11-23 14:23:03,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:03,978 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-11-23 14:23:03,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:03,978 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-11-23 14:23:03,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 14:23:03,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:03,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:03,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:23:03,980 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)] === [2022-11-23 14:23:03,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:03,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1043950612, now seen corresponding path program 1 times [2022-11-23 14:23:03,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:03,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758877961] [2022-11-23 14:23:03,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:03,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:04,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:04,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:04,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758877961] [2022-11-23 14:23:04,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758877961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:04,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:04,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:23:04,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801547702] [2022-11-23 14:23:04,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:04,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:23:04,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:04,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:23:04,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:23:04,108 INFO L87 Difference]: Start difference. First operand 46 states and 50 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) [2022-11-23 14:23:04,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:04,199 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2022-11-23 14:23:04,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:23:04,200 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 [2022-11-23 14:23:04,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:04,202 INFO L225 Difference]: With dead ends: 75 [2022-11-23 14:23:04,202 INFO L226 Difference]: Without dead ends: 71 [2022-11-23 14:23:04,203 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 [2022-11-23 14:23:04,204 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 31 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:04,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 28 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:23:04,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-23 14:23:04,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-11-23 14:23:04,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 67 states have (on average 1.164179104477612) internal successors, (78), 70 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:04,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2022-11-23 14:23:04,213 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 18 [2022-11-23 14:23:04,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:04,213 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2022-11-23 14:23:04,213 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) [2022-11-23 14:23:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2022-11-23 14:23:04,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 14:23:04,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:04,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:04,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:23:04,215 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 14:23:04,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:04,216 INFO L85 PathProgramCache]: Analyzing trace with hash -14686979, now seen corresponding path program 1 times [2022-11-23 14:23:04,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:04,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129877481] [2022-11-23 14:23:04,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:04,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:04,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:04,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:04,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129877481] [2022-11-23 14:23:04,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129877481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:04,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:04,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:23:04,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598522663] [2022-11-23 14:23:04,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:04,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:23:04,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:04,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:23:04,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:23:04,344 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:04,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:04,467 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2022-11-23 14:23:04,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:23:04,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-23 14:23:04,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:04,469 INFO L225 Difference]: With dead ends: 101 [2022-11-23 14:23:04,469 INFO L226 Difference]: Without dead ends: 97 [2022-11-23 14:23:04,470 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 [2022-11-23 14:23:04,471 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 57 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:04,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 33 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:23:04,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-23 14:23:04,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-11-23 14:23:04,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 93 states have (on average 1.1505376344086022) internal successors, (107), 96 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 107 transitions. [2022-11-23 14:23:04,479 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 107 transitions. Word has length 24 [2022-11-23 14:23:04,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:04,480 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 107 transitions. [2022-11-23 14:23:04,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:04,480 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 107 transitions. [2022-11-23 14:23:04,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:23:04,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:04,482 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] [2022-11-23 14:23:04,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:23:04,482 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)] === [2022-11-23 14:23:04,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:04,483 INFO L85 PathProgramCache]: Analyzing trace with hash 379981726, now seen corresponding path program 1 times [2022-11-23 14:23:04,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:04,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399736419] [2022-11-23 14:23:04,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:04,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:04,596 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:04,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:04,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399736419] [2022-11-23 14:23:04,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399736419] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:23:04,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808654864] [2022-11-23 14:23:04,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:04,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:23:04,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:23:04,603 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:23:04,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:23:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:04,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 14:23:04,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:23:04,797 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:04,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:23:04,923 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:04,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808654864] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:23:04,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [486993275] [2022-11-23 14:23:04,950 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-23 14:23:04,951 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:23:04,954 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:23:04,964 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:23:04,964 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:23:09,369 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:23:15,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [486993275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:15,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:23:15,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [5, 5, 5] total 29 [2022-11-23 14:23:15,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435077119] [2022-11-23 14:23:15,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:15,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-23 14:23:15,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:15,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-23 14:23:15,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=685, Unknown=0, NotChecked=0, Total=870 [2022-11-23 14:23:15,455 INFO L87 Difference]: Start difference. First operand 97 states and 107 transitions. Second operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:26,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:26,259 INFO L93 Difference]: Finished difference Result 141 states and 155 transitions. [2022-11-23 14:23:26,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-23 14:23:26,264 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 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 31 [2022-11-23 14:23:26,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:26,269 INFO L225 Difference]: With dead ends: 141 [2022-11-23 14:23:26,269 INFO L226 Difference]: Without dead ends: 139 [2022-11-23 14:23:26,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 65 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=409, Invalid=2141, Unknown=0, NotChecked=0, Total=2550 [2022-11-23 14:23:26,273 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 67 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:26,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 55 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-23 14:23:26,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-23 14:23:26,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 111. [2022-11-23 14:23:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 107 states have (on average 1.158878504672897) internal successors, (124), 110 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:26,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 124 transitions. [2022-11-23 14:23:26,304 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 124 transitions. Word has length 31 [2022-11-23 14:23:26,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:26,305 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 124 transitions. [2022-11-23 14:23:26,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:26,306 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 124 transitions. [2022-11-23 14:23:26,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:23:26,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:26,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:26,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:23:26,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-23 14:23:26,518 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)] === [2022-11-23 14:23:26,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:26,518 INFO L85 PathProgramCache]: Analyzing trace with hash -837761354, now seen corresponding path program 1 times [2022-11-23 14:23:26,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:26,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341044383] [2022-11-23 14:23:26,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:26,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:26,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:26,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:26,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341044383] [2022-11-23 14:23:26,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341044383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:26,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:26,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:23:26,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847744857] [2022-11-23 14:23:26,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:26,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:23:26,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:26,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:23:26,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:23:26,681 INFO L87 Difference]: Start difference. First operand 111 states and 124 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:26,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:26,854 INFO L93 Difference]: Finished difference Result 164 states and 183 transitions. [2022-11-23 14:23:26,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:23:26,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:23:26,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:26,856 INFO L225 Difference]: With dead ends: 164 [2022-11-23 14:23:26,856 INFO L226 Difference]: Without dead ends: 160 [2022-11-23 14:23:26,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:23:26,857 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 102 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:26,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 39 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:23:26,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-23 14:23:26,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 151. [2022-11-23 14:23:26,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 147 states have (on average 1.1496598639455782) internal successors, (169), 150 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:26,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 169 transitions. [2022-11-23 14:23:26,878 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 169 transitions. Word has length 31 [2022-11-23 14:23:26,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:26,879 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 169 transitions. [2022-11-23 14:23:26,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:26,879 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 169 transitions. [2022-11-23 14:23:26,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-23 14:23:26,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:26,880 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:26,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:23:26,881 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)] === [2022-11-23 14:23:26,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:26,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1959857861, now seen corresponding path program 1 times [2022-11-23 14:23:26,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:26,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801596608] [2022-11-23 14:23:26,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:26,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:27,021 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:27,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:27,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801596608] [2022-11-23 14:23:27,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801596608] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:23:27,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487942086] [2022-11-23 14:23:27,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:27,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:23:27,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:23:27,028 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:23:27,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:23:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:27,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 14:23:27,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:23:27,194 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:27,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:23:27,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:27,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487942086] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:23:27,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1445737797] [2022-11-23 14:23:27,308 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-23 14:23:27,308 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:23:27,308 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:23:27,309 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:23:27,309 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:23:28,120 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:23:33,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1445737797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:33,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:23:33,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [6, 6, 6] total 39 [2022-11-23 14:23:33,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829508926] [2022-11-23 14:23:33,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:33,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-23 14:23:33,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:33,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-23 14:23:33,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=1291, Unknown=0, NotChecked=0, Total=1560 [2022-11-23 14:23:33,830 INFO L87 Difference]: Start difference. First operand 151 states and 169 transitions. Second operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:36,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:36,344 INFO L93 Difference]: Finished difference Result 219 states and 245 transitions. [2022-11-23 14:23:36,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-23 14:23:36,344 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-11-23 14:23:36,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:36,346 INFO L225 Difference]: With dead ends: 219 [2022-11-23 14:23:36,346 INFO L226 Difference]: Without dead ends: 216 [2022-11-23 14:23:36,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 77 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=348, Invalid=1908, Unknown=0, NotChecked=0, Total=2256 [2022-11-23 14:23:36,348 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 83 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:36,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 74 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 14:23:36,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-23 14:23:36,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 143. [2022-11-23 14:23:36,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 140 states have (on average 1.1642857142857144) internal successors, (163), 142 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:36,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 163 transitions. [2022-11-23 14:23:36,371 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 163 transitions. Word has length 38 [2022-11-23 14:23:36,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:36,372 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 163 transitions. [2022-11-23 14:23:36,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:36,372 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 163 transitions. [2022-11-23 14:23:36,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-23 14:23:36,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:36,373 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, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:36,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:23:36,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:23:36,579 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 14:23:36,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:36,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1814070331, now seen corresponding path program 1 times [2022-11-23 14:23:36,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:36,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433495000] [2022-11-23 14:23:36,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:36,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:36,698 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:36,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:23:36,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433495000] [2022-11-23 14:23:36,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433495000] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:23:36,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440873102] [2022-11-23 14:23:36,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:36,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:23:36,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:23:36,699 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:23:36,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:23:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:36,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 14:23:36,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:23:36,831 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:36,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:23:36,933 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:36,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440873102] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:23:36,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [584255058] [2022-11-23 14:23:36,942 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2022-11-23 14:23:36,943 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:23:36,943 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:23:36,943 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:23:36,943 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:23:40,512 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:23:49,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [584255058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:49,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:23:49,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [6, 6, 6] total 36 [2022-11-23 14:23:49,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444244600] [2022-11-23 14:23:49,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:49,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-23 14:23:49,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:49,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-23 14:23:49,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=1042, Unknown=0, NotChecked=0, Total=1332 [2022-11-23 14:23:49,584 INFO L87 Difference]: Start difference. First operand 143 states and 163 transitions. Second operand has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:24:04,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:04,923 INFO L93 Difference]: Finished difference Result 198 states and 224 transitions. [2022-11-23 14:24:04,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-23 14:24:04,923 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 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 38 [2022-11-23 14:24:04,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:04,925 INFO L225 Difference]: With dead ends: 198 [2022-11-23 14:24:04,925 INFO L226 Difference]: Without dead ends: 196 [2022-11-23 14:24:04,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1255 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=514, Invalid=2792, Unknown=0, NotChecked=0, Total=3306 [2022-11-23 14:24:04,926 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 83 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:04,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 98 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-23 14:24:04,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-23 14:24:04,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 146. [2022-11-23 14:24:04,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 143 states have (on average 1.1748251748251748) internal successors, (168), 145 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:24:04,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 168 transitions. [2022-11-23 14:24:04,953 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 168 transitions. Word has length 38 [2022-11-23 14:24:04,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:04,954 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 168 transitions. [2022-11-23 14:24:04,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:24:04,954 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 168 transitions. [2022-11-23 14:24:04,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-23 14:24:04,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:04,955 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:04,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:24:05,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 14:24:05,162 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 14:24:05,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:05,162 INFO L85 PathProgramCache]: Analyzing trace with hash -614019432, now seen corresponding path program 1 times [2022-11-23 14:24:05,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:05,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269505407] [2022-11-23 14:24:05,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:05,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:05,262 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:24:05,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:05,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269505407] [2022-11-23 14:24:05,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269505407] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:24:05,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950736934] [2022-11-23 14:24:05,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:05,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:24:05,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:24:05,276 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:24:05,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:24:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:05,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 14:24:05,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:24:05,423 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:24:05,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:24:05,513 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:24:05,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950736934] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:24:05,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [355590018] [2022-11-23 14:24:05,517 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-23 14:24:05,517 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:24:05,517 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:24:05,517 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:24:05,518 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:24:07,285 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:24:11,340 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3460#(and (<= 0 |ULTIMATE.start_main_~__tmp_5~0#1|) (<= |ULTIMATE.start_main_~__tmp_6~0#1| 1) (< 2147483646 |ULTIMATE.start_main_~main__t~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| 1) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483648)) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1| 1) (<= 0 (+ ~__tmp_259_0~0 2147483648)) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1|) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_5~0#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1| 1) (<= 1 |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~main__t~0#1| 2147483647) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_6~0#1|) (= ~__return_305~0 0) (<= |ULTIMATE.start_main_~__tmp_1~0#1| 1) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_1~0#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1| 0) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1|) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~__tmp_2~0#1| 1) (<= ~__tmp_259_0~0 2147483647) (<= 0 |#StackHeapBarrier|) (= ~__return_main~0 0) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1| 2147483647) (= ~__tmp_383_0~0 0) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~__tmp_2~0#1|))' at error location [2022-11-23 14:24:11,340 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:24:11,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:24:11,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-23 14:24:11,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616142850] [2022-11-23 14:24:11,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:24:11,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:24:11,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:11,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:24:11,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=828, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 14:24:11,343 INFO L87 Difference]: Start difference. First operand 146 states and 168 transitions. Second operand has 13 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:24:11,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:11,772 INFO L93 Difference]: Finished difference Result 545 states and 632 transitions. [2022-11-23 14:24:11,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:24:11,772 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-11-23 14:24:11,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:11,785 INFO L225 Difference]: With dead ends: 545 [2022-11-23 14:24:11,785 INFO L226 Difference]: Without dead ends: 542 [2022-11-23 14:24:11,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=228, Invalid=828, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 14:24:11,787 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 394 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:11,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 80 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:24:11,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-11-23 14:24:11,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 386. [2022-11-23 14:24:11,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 383 states have (on average 1.1436031331592689) internal successors, (438), 385 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:24:11,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 438 transitions. [2022-11-23 14:24:11,849 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 438 transitions. Word has length 39 [2022-11-23 14:24:11,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:11,849 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 438 transitions. [2022-11-23 14:24:11,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:24:11,850 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 438 transitions. [2022-11-23 14:24:11,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-23 14:24:11,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:11,852 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:11,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:24:12,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:24:12,057 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 14:24:12,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:12,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1614416585, now seen corresponding path program 1 times [2022-11-23 14:24:12,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:12,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762042277] [2022-11-23 14:24:12,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:12,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:12,361 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:24:12,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:12,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762042277] [2022-11-23 14:24:12,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762042277] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:24:12,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427332278] [2022-11-23 14:24:12,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:12,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:24:12,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:24:12,363 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:24:12,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 14:24:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:12,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 14:24:12,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:24:12,571 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:24:12,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:24:12,859 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:24:12,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427332278] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:24:12,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1514018876] [2022-11-23 14:24:12,861 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-23 14:24:12,861 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:24:12,861 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:24:12,862 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:24:12,862 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:24:16,016 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:24:24,171 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5033#(and (<= 0 |ULTIMATE.start_main_~__tmp_5~0#1|) (<= |ULTIMATE.start_main_~__tmp_9~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_6~0#1| 1) (< 2147483646 |ULTIMATE.start_main_~main__t~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483648)) (<= ~__tmp_383_0~0 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1| 1) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_17~0#1|) (<= 0 ~__tmp_383_0~0) (<= 0 |ULTIMATE.start_main_~__tmp_18~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483648)) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1| 1) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (<= 0 |ULTIMATE.start_main_~__tmp_9~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) (<= 0 (+ ~__tmp_259_0~0 2147483648)) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1|) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~8#1| 1) (<= |ULTIMATE.start_main_~__tmp_10~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_5~0#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1| 2147483645) (<= |ULTIMATE.start_main_~__tmp_18~0#1| 1) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483647) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~main__t~0#1| 2147483647) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1| 1) (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main____CPAchecker_TMP_7~0#1|) (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1| 0)) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_6~0#1|) (= ~__return_305~0 0) (<= 1 |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483647) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1|) (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~8#1|) (<= |ULTIMATE.start_main_~__tmp_17~0#1| 1) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1| 1) (<= 2 |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483648)) (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) (<= ~__tmp_259_0~0 2147483647) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 2147483644) (= ~__return_main~0 0) (<= 0 |ULTIMATE.start_main_~__tmp_10~0#1|) (= |#NULL.base| 0))' at error location [2022-11-23 14:24:24,171 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:24:24,172 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:24:24,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-11-23 14:24:24,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532254342] [2022-11-23 14:24:24,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:24:24,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-23 14:24:24,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:24,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-23 14:24:24,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=527, Invalid=2229, Unknown=0, NotChecked=0, Total=2756 [2022-11-23 14:24:24,174 INFO L87 Difference]: Start difference. First operand 386 states and 438 transitions. Second operand has 25 states, 24 states have (on average 6.791666666666667) internal successors, (163), 25 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:24:25,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:25,110 INFO L93 Difference]: Finished difference Result 1139 states and 1322 transitions. [2022-11-23 14:24:25,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 14:24:25,111 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.791666666666667) internal successors, (163), 25 states have internal predecessors, (163), 0 states have call successors, (0), 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 77 [2022-11-23 14:24:25,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:25,114 INFO L225 Difference]: With dead ends: 1139 [2022-11-23 14:24:25,115 INFO L226 Difference]: Without dead ends: 1136 [2022-11-23 14:24:25,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1328 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=527, Invalid=2229, Unknown=0, NotChecked=0, Total=2756 [2022-11-23 14:24:25,116 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1157 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:25,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 152 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:24:25,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-11-23 14:24:25,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 866. [2022-11-23 14:24:25,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 863 states have (on average 1.1332560834298957) internal successors, (978), 865 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:24:25,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 978 transitions. [2022-11-23 14:24:25,248 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 978 transitions. Word has length 77 [2022-11-23 14:24:25,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:25,248 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 978 transitions. [2022-11-23 14:24:25,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.791666666666667) internal successors, (163), 25 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:24:25,249 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 978 transitions. [2022-11-23 14:24:25,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-23 14:24:25,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:25,252 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:25,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 14:24:25,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:24:25,458 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 14:24:25,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:25,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1216431753, now seen corresponding path program 2 times [2022-11-23 14:24:25,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:25,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461892833] [2022-11-23 14:24:25,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:25,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:26,370 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:24:26,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:26,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461892833] [2022-11-23 14:24:26,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461892833] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:24:26,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833549924] [2022-11-23 14:24:26,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:24:26,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:24:26,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:24:26,373 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:24:26,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 14:24:26,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:24:26,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:24:26,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 14:24:26,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:24:26,807 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2022-11-23 14:24:26,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:24:27,168 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2022-11-23 14:24:27,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833549924] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:24:27,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [41128052] [2022-11-23 14:24:27,170 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-23 14:24:27,171 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:24:27,171 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:24:27,171 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:24:27,171 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:24:30,640 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:24:41,332 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8327#(and (<= 0 |ULTIMATE.start_main_~__tmp_5~0#1|) (<= |ULTIMATE.start_main_~__tmp_9~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_6~0#1| 1) (< 2147483646 |ULTIMATE.start_main_~main__t~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483648)) (<= ~__tmp_383_0~0 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1| 1) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_17~0#1|) (<= 0 ~__tmp_383_0~0) (<= 0 |ULTIMATE.start_main_~__tmp_18~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483648)) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1| 1) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (<= 0 |ULTIMATE.start_main_~__tmp_9~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) (<= 0 (+ ~__tmp_259_0~0 2147483648)) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1|) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~8#1| 1) (<= |ULTIMATE.start_main_~__tmp_10~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_5~0#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1| 2147483645) (<= |ULTIMATE.start_main_~__tmp_18~0#1| 1) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483647) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~main__t~0#1| 2147483647) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1| 1) (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main____CPAchecker_TMP_7~0#1|) (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1| 0)) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_6~0#1|) (= ~__return_305~0 0) (<= 1 |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483647) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1|) (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~8#1|) (<= |ULTIMATE.start_main_~__tmp_17~0#1| 1) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1| 1) (<= 2 |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483648)) (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) (<= ~__tmp_259_0~0 2147483647) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 2147483644) (= ~__return_main~0 0) (<= 0 |ULTIMATE.start_main_~__tmp_10~0#1|) (= |#NULL.base| 0))' at error location [2022-11-23 14:24:41,333 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:24:41,333 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:24:41,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 5, 5] total 33 [2022-11-23 14:24:41,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346958995] [2022-11-23 14:24:41,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:24:41,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-23 14:24:41,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:41,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-23 14:24:41,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=801, Invalid=2981, Unknown=0, NotChecked=0, Total=3782 [2022-11-23 14:24:41,336 INFO L87 Difference]: Start difference. First operand 866 states and 978 transitions. Second operand has 34 states, 33 states have (on average 7.121212121212121) internal successors, (235), 34 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:24:46,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:46,236 INFO L93 Difference]: Finished difference Result 1257 states and 1430 transitions. [2022-11-23 14:24:46,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-11-23 14:24:46,237 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 7.121212121212121) internal successors, (235), 34 states have internal predecessors, (235), 0 states have call successors, (0), 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 155 [2022-11-23 14:24:46,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:46,238 INFO L225 Difference]: With dead ends: 1257 [2022-11-23 14:24:46,238 INFO L226 Difference]: Without dead ends: 187 [2022-11-23 14:24:46,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 425 SyntacticMatches, 2 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9354 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=5629, Invalid=19811, Unknown=0, NotChecked=0, Total=25440 [2022-11-23 14:24:46,249 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 4018 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4018 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:46,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4018 Valid, 178 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 14:24:46,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-23 14:24:46,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2022-11-23 14:24:46,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 186 states have (on average 1.0053763440860215) internal successors, (187), 186 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:24:46,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 187 transitions. [2022-11-23 14:24:46,266 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 187 transitions. Word has length 155 [2022-11-23 14:24:46,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:46,266 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 187 transitions. [2022-11-23 14:24:46,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 7.121212121212121) internal successors, (235), 34 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:24:46,267 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 187 transitions. [2022-11-23 14:24:46,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-23 14:24:46,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:46,269 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:46,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 14:24:46,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-23 14:24:46,470 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 14:24:46,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:46,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1607052404, now seen corresponding path program 1 times [2022-11-23 14:24:46,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:46,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312307681] [2022-11-23 14:24:46,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:46,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:47,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2175 backedges. 0 proven. 2175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:24:47,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:47,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312307681] [2022-11-23 14:24:47,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312307681] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:24:47,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58339245] [2022-11-23 14:24:47,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:47,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:24:47,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:24:47,559 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:24:47,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 14:24:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:47,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-23 14:24:47,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:24:47,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2175 backedges. 0 proven. 2175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:24:47,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:24:49,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2175 backedges. 0 proven. 2175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:24:49,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58339245] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:24:49,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1747045492] [2022-11-23 14:24:49,098 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-23 14:24:49,099 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:24:49,099 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:24:49,099 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:24:49,099 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:24:49,485 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:24:50,920 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11385#(and (< 2147483646 |ULTIMATE.start_main_~main__t~0#1|) (<= ~__tmp_383_0~0 0) (<= 0 |#NULL.base|) (<= 0 ~__tmp_383_0~0) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= ~__return_305~0 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (<= 0 ~__tmp_259_0~0) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (<= ~__return_main~0 0) (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (<= 0 ~__return_305~0) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= ~__tmp_383_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (<= 0 ~__return_main~0) (<= ~__tmp_259_0~0 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-23 14:24:50,920 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:24:50,920 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:24:50,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 54 [2022-11-23 14:24:50,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232566404] [2022-11-23 14:24:50,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:24:50,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-23 14:24:50,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:50,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-23 14:24:50,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1804, Invalid=2752, Unknown=0, NotChecked=0, Total=4556 [2022-11-23 14:24:50,923 INFO L87 Difference]: Start difference. First operand 187 states and 187 transitions. Second operand has 55 states, 54 states have (on average 7.055555555555555) internal successors, (381), 55 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:24:51,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:51,357 INFO L93 Difference]: Finished difference Result 377 states and 403 transitions. [2022-11-23 14:24:51,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-11-23 14:24:51,358 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 7.055555555555555) internal successors, (381), 55 states have internal predecessors, (381), 0 states have call successors, (0), 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 186 [2022-11-23 14:24:51,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:51,360 INFO L225 Difference]: With dead ends: 377 [2022-11-23 14:24:51,360 INFO L226 Difference]: Without dead ends: 376 [2022-11-23 14:24:51,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1283 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1804, Invalid=2752, Unknown=0, NotChecked=0, Total=4556 [2022-11-23 14:24:51,363 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 116 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:51,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 58 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:24:51,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-11-23 14:24:51,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2022-11-23 14:24:51,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.0026666666666666) internal successors, (376), 375 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:24:51,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 376 transitions. [2022-11-23 14:24:51,401 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 376 transitions. Word has length 186 [2022-11-23 14:24:51,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:51,402 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 376 transitions. [2022-11-23 14:24:51,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 7.055555555555555) internal successors, (381), 55 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:24:51,402 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 376 transitions. [2022-11-23 14:24:51,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-11-23 14:24:51,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:51,408 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:24:51,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 14:24:51,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-23 14:24:51,615 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-23 14:24:51,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:51,615 INFO L85 PathProgramCache]: Analyzing trace with hash -527664441, now seen corresponding path program 2 times [2022-11-23 14:24:51,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:51,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951521703] [2022-11-23 14:24:51,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:51,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:51,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 9438 backedges. 0 proven. 9438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:24:55,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:55,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951521703] [2022-11-23 14:24:55,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951521703] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:24:55,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889091671] [2022-11-23 14:24:55,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:24:55,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:24:55,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:24:55,281 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:24:55,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 14:24:55,401 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-23 14:24:55,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:24:55,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 14:24:55,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:24:56,024 INFO L134 CoverageAnalysis]: Checked inductivity of 9438 backedges. 102 proven. 207 refuted. 0 times theorem prover too weak. 9129 trivial. 0 not checked. [2022-11-23 14:24:56,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:24:56,776 INFO L134 CoverageAnalysis]: Checked inductivity of 9438 backedges. 0 proven. 309 refuted. 0 times theorem prover too weak. 9129 trivial. 0 not checked. [2022-11-23 14:24:56,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889091671] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:24:56,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [554561835] [2022-11-23 14:24:56,784 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-23 14:24:56,784 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:24:56,785 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:24:56,785 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:24:56,785 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:24:57,280 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:24:59,273 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14565#(and (< 2147483646 |ULTIMATE.start_main_~main__t~0#1|) (<= ~__tmp_383_0~0 0) (= ~__tmp_259_0~0 0) (<= 0 ~__tmp_383_0~0) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (= ~__return_305~0 0) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= ~__tmp_383_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) (<= 0 |#StackHeapBarrier|) (= ~__return_main~0 0) (= |#NULL.base| 0))' at error location [2022-11-23 14:24:59,273 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:24:59,273 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:24:59,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 5, 5] total 63 [2022-11-23 14:24:59,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122406861] [2022-11-23 14:24:59,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:24:59,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-11-23 14:24:59,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:24:59,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-11-23 14:24:59,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2121, Invalid=3731, Unknown=0, NotChecked=0, Total=5852 [2022-11-23 14:24:59,277 INFO L87 Difference]: Start difference. First operand 376 states and 376 transitions. Second operand has 64 states, 63 states have (on average 6.650793650793651) internal successors, (419), 64 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:25:05,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:05,472 INFO L93 Difference]: Finished difference Result 387 states and 388 transitions. [2022-11-23 14:25:05,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-11-23 14:25:05,472 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 6.650793650793651) internal successors, (419), 64 states have internal predecessors, (419), 0 states have call successors, (0), 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 375 [2022-11-23 14:25:05,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:05,473 INFO L225 Difference]: With dead ends: 387 [2022-11-23 14:25:05,473 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:25:05,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1290 GetRequests, 1101 SyntacticMatches, 1 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10283 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=10653, Invalid=25257, Unknown=0, NotChecked=0, Total=35910 [2022-11-23 14:25:05,478 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 992 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:05,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 2 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:25:05,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:25:05,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:25:05,479 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) [2022-11-23 14:25:05,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:25:05,479 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 375 [2022-11-23 14:25:05,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:05,480 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:25:05,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 6.650793650793651) internal successors, (419), 64 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:25:05,480 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:25:05,480 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:25:05,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-23 14:25:05,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-23 14:25:05,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-23 14:25:05,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-23 14:25:05,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-23 14:25:05,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-23 14:25:05,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-23 14:25:05,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-23 14:25:05,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-23 14:25:05,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-23 14:25:05,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 14:25:05,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:25:05,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:25:38,804 WARN L233 SmtUtils]: Spent 31.50s on a formula simplification. DAG size of input: 535 DAG size of output: 535 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-23 14:25:52,450 WARN L233 SmtUtils]: Spent 8.78s on a formula simplification. DAG size of input: 535 DAG size of output: 9 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-23 14:25:56,388 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-11-23 14:25:56,388 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 242) no Hoare annotation was computed. [2022-11-23 14:25:56,388 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 194) no Hoare annotation was computed. [2022-11-23 14:25:56,389 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-23 14:25:56,389 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 14:25:56,389 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2022-11-23 14:25:56,390 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2022-11-23 14:25:56,390 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2022-11-23 14:25:56,390 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 401) no Hoare annotation was computed. [2022-11-23 14:25:56,390 INFO L899 garLoopResultBuilder]: For program point L276(lines 276 391) no Hoare annotation was computed. [2022-11-23 14:25:56,391 INFO L902 garLoopResultBuilder]: At program point L400(lines 15 402) the Hoare annotation is: true [2022-11-23 14:25:56,391 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 287) no Hoare annotation was computed. [2022-11-23 14:25:56,391 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 94) no Hoare annotation was computed. [2022-11-23 14:25:56,391 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-11-23 14:25:56,391 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-23 14:25:56,391 INFO L899 garLoopResultBuilder]: For program point L194-1(line 194) no Hoare annotation was computed. [2022-11-23 14:25:56,392 INFO L895 garLoopResultBuilder]: At program point L384(lines 282 391) the Hoare annotation is: (let ((.cse21 (select |#memory_int| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= ~__tmp_259_0~0 0)) (.cse2 (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646)) (.cse3 (= 2 (select |#length| 1))) (.cse4 (= (select |#valid| 3) 1)) (.cse6 (= ~__return_305~0 0)) (.cse7 (= (select |#valid| 1) 1)) (.cse8 (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) (.cse9 (= (select |#valid| 0) 0)) (.cse10 (= (select |#valid| 2) 1)) (.cse5 (ite (<= 0 |ULTIMATE.start_main_~main__t~0#1|) 1 0)) (.cse11 (= |#NULL.offset| 0)) (.cse12 (= (select .cse21 0) 48)) (.cse13 (= 33 (select |#length| 2))) (.cse14 (= (select .cse21 1) 0)) (.cse16 (ite (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|) 1 0)) (.cse15 (= ~__return_main~0 0)) (.cse17 (= ~__tmp_383_0~0 0)) (.cse18 (not (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|))) (.cse19 (< 0 |#StackHeapBarrier|)) (.cse20 (= |#NULL.base| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~__tmp_19~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~18#1|) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (= |ULTIMATE.start_main_~__tmp_20~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~19#1|) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) .cse2 .cse3 .cse4 (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (= |ULTIMATE.start_main_~__tmp_19~0#1| .cse5) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) .cse6 (= (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 1) |ULTIMATE.start_main_~main__t~0#1|) .cse7 (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) .cse8 (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= ~__tmp_383_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) .cse9 .cse10 .cse11 .cse12 .cse13 (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) .cse14 (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) .cse15 (= |ULTIMATE.start_main_~__tmp_20~0#1| .cse16) .cse17 .cse18 .cse19 (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 0) .cse20 (<= |ULTIMATE.start_main_~main__t~0#1| 2147483645)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 0) (= |ULTIMATE.start_main_~__tmp_14~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) .cse2 .cse3 (= |ULTIMATE.start_main_~__tmp_13~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) .cse4 (= |ULTIMATE.start_main_~main__t~0#1| 0) .cse6 .cse7 .cse8 .cse9 .cse10 (= |ULTIMATE.start_main_~__tmp_13~0#1| .cse5) .cse11 .cse12 .cse13 .cse14 (= |ULTIMATE.start_main_~__tmp_14~0#1| .cse16) .cse15 .cse17 .cse18 .cse19 .cse20)))) [2022-11-23 14:25:56,393 INFO L895 garLoopResultBuilder]: At program point L351(lines 32 395) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646)) (.cse1 (ite (<= 0 |ULTIMATE.start_main_~main__t~0#1|) 1 0)) (.cse2 (= ~__return_305~0 0)) (.cse5 (ite (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|) 1 0)) (.cse3 (= |#NULL.offset| 0)) (.cse6 (= ~__return_main~0 0)) (.cse7 (not (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|))) (.cse8 (= |#NULL.base| 0))) (or (let ((.cse4 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| |ULTIMATE.start_main_~__tmp_1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483648)) (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| |ULTIMATE.start_main_~__tmp_2~0#1|) .cse0 (= 2 (select |#length| 1)) (= |ULTIMATE.start_main_~__tmp_1~0#1| .cse1) (= ~__tmp_259_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~main__t~0#1| 0) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483647) .cse2 (= (select |#valid| 1) 1) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) .cse3 (= (select .cse4 0) 48) (= .cse5 |ULTIMATE.start_main_~__tmp_2~0#1|) (= 33 (select |#length| 2)) (= (select .cse4 1) 0) .cse6 (= ~__tmp_383_0~0 0) .cse7 (< 0 |#StackHeapBarrier|) .cse8 (not (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 0)))) (and (<= ~__tmp_383_0~0 0) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483647) (<= 0 ~__tmp_383_0~0) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1| 0)) (= |ULTIMATE.start_main_~__tmp_18~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1|) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) .cse0 (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (= |ULTIMATE.start_main_~__tmp_17~0#1| .cse1) .cse2 (= (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 1) |ULTIMATE.start_main_~main__t~0#1|) (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (= |ULTIMATE.start_main_~__tmp_18~0#1| .cse5) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= ~__tmp_383_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (= |ULTIMATE.start_main_~__tmp_17~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1|) .cse3 (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483648)) (not (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 0)) (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) (<= 0 |#StackHeapBarrier|) .cse6 (= ~__tmp_259_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1|) .cse7 .cse8))) [2022-11-23 14:25:56,393 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 196) no Hoare annotation was computed. [2022-11-23 14:25:56,393 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 385) no Hoare annotation was computed. [2022-11-23 14:25:56,393 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 352) no Hoare annotation was computed. [2022-11-23 14:25:56,393 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 203) no Hoare annotation was computed. [2022-11-23 14:25:56,393 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 287) no Hoare annotation was computed. [2022-11-23 14:25:56,394 INFO L895 garLoopResultBuilder]: At program point L195(lines 56 253) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__t~0#1| 2147483646) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= 1 |ULTIMATE.start_main_~main__t~0#1|)) [2022-11-23 14:25:56,394 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 209) no Hoare annotation was computed. [2022-11-23 14:25:56,394 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 255) no Hoare annotation was computed. [2022-11-23 14:25:56,394 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 317) no Hoare annotation was computed. [2022-11-23 14:25:56,394 INFO L899 garLoopResultBuilder]: For program point L287(line 287) no Hoare annotation was computed. [2022-11-23 14:25:56,394 INFO L899 garLoopResultBuilder]: For program point L287-1(line 287) no Hoare annotation was computed. [2022-11-23 14:25:56,395 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-11-23 14:25:56,395 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-11-23 14:25:56,395 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 395) no Hoare annotation was computed. [2022-11-23 14:25:56,395 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 390) no Hoare annotation was computed. [2022-11-23 14:25:56,395 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 244) no Hoare annotation was computed. [2022-11-23 14:25:56,395 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 132) no Hoare annotation was computed. [2022-11-23 14:25:56,395 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 396) no Hoare annotation was computed. [2022-11-23 14:25:56,396 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 92) no Hoare annotation was computed. [2022-11-23 14:25:56,396 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 162) no Hoare annotation was computed. [2022-11-23 14:25:56,396 INFO L899 garLoopResultBuilder]: For program point L132(line 132) no Hoare annotation was computed. [2022-11-23 14:25:56,396 INFO L899 garLoopResultBuilder]: For program point L132-1(line 132) no Hoare annotation was computed. [2022-11-23 14:25:56,396 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:25:56,396 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 201) no Hoare annotation was computed. [2022-11-23 14:25:56,396 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 132) no Hoare annotation was computed. [2022-11-23 14:25:56,397 INFO L902 garLoopResultBuilder]: At program point L314(lines 32 395) the Hoare annotation is: true [2022-11-23 14:25:56,397 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 250) no Hoare annotation was computed. [2022-11-23 14:25:56,397 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 253) no Hoare annotation was computed. [2022-11-23 14:25:56,397 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 198) no Hoare annotation was computed. [2022-11-23 14:25:56,397 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 387) no Hoare annotation was computed. [2022-11-23 14:25:56,397 INFO L899 garLoopResultBuilder]: For program point L331(lines 331 354) no Hoare annotation was computed. [2022-11-23 14:25:56,397 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 393) no Hoare annotation was computed. [2022-11-23 14:25:56,398 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 200) no Hoare annotation was computed. [2022-11-23 14:25:56,398 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-11-23 14:25:56,398 INFO L895 garLoopResultBuilder]: At program point L249(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|))) [2022-11-23 14:25:56,398 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 315) no Hoare annotation was computed. [2022-11-23 14:25:56,398 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 194) no Hoare annotation was computed. [2022-11-23 14:25:56,398 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 251) no Hoare annotation was computed. [2022-11-23 14:25:56,399 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 389) no Hoare annotation was computed. [2022-11-23 14:25:56,401 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:56,404 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:25:56,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:25:56 BoogieIcfgContainer [2022-11-23 14:25:56,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:25:56,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:25:56,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:25:56,448 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:25:56,449 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:02" (3/4) ... [2022-11-23 14:25:56,451 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:25:56,462 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-23 14:25:56,468 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 14:25:56,469 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 14:25:56,469 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:25:56,529 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:25:56,529 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:25:56,530 INFO L158 Benchmark]: Toolchain (without parser) took 174680.62ms. Allocated memory was 121.6MB in the beginning and 786.4MB in the end (delta: 664.8MB). Free memory was 88.9MB in the beginning and 667.6MB in the end (delta: -578.7MB). Peak memory consumption was 89.1MB. Max. memory is 16.1GB. [2022-11-23 14:25:56,531 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 92.3MB. Free memory is still 44.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:25:56,531 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.84ms. Allocated memory is still 121.6MB. Free memory was 88.9MB in the beginning and 72.2MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 14:25:56,531 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.45ms. Allocated memory is still 121.6MB. Free memory was 72.2MB in the beginning and 69.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:25:56,532 INFO L158 Benchmark]: Boogie Preprocessor took 24.28ms. Allocated memory is still 121.6MB. Free memory was 69.8MB in the beginning and 68.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:25:56,533 INFO L158 Benchmark]: RCFGBuilder took 444.67ms. Allocated memory is still 121.6MB. Free memory was 68.5MB in the beginning and 51.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 14:25:56,533 INFO L158 Benchmark]: TraceAbstraction took 173704.22ms. Allocated memory was 121.6MB in the beginning and 786.4MB in the end (delta: 664.8MB). Free memory was 51.0MB in the beginning and 672.8MB in the end (delta: -621.9MB). Peak memory consumption was 456.3MB. Max. memory is 16.1GB. [2022-11-23 14:25:56,533 INFO L158 Benchmark]: Witness Printer took 81.48ms. Allocated memory is still 786.4MB. Free memory was 672.8MB in the beginning and 667.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:25:56,540 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 92.3MB. Free memory is still 44.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.84ms. Allocated memory is still 121.6MB. Free memory was 88.9MB in the beginning and 72.2MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.45ms. Allocated memory is still 121.6MB. Free memory was 72.2MB in the beginning and 69.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.28ms. Allocated memory is still 121.6MB. Free memory was 69.8MB in the beginning and 68.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 444.67ms. Allocated memory is still 121.6MB. Free memory was 68.5MB in the beginning and 51.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 173704.22ms. Allocated memory was 121.6MB in the beginning and 786.4MB in the end (delta: 664.8MB). Free memory was 51.0MB in the beginning and 672.8MB in the end (delta: -621.9MB). Peak memory consumption was 456.3MB. Max. memory is 16.1GB. * Witness Printer took 81.48ms. Allocated memory is still 786.4MB. Free memory was 672.8MB in the beginning and 667.6MB 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, 57 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 173.5s, OverallIterations: 15, TraceHistogramMax: 53, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 42.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 50.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7181 SdHoareTripleChecker+Valid, 7.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7181 mSDsluCounter, 998 SdHoareTripleChecker+Invalid, 6.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 697 mSDsCounter, 964 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5281 IncrementalHoareTripleChecker+Invalid, 6245 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 964 mSolverCounterUnsat, 301 mSDtfsCounter, 5281 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3222 GetRequests, 2551 SyntacticMatches, 12 SemanticMatches, 659 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25803 ImplicationChecksByTransitivity, 84.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=866occurred in iteration=12, InterpolantAutomatonStates: 439, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 586 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 230 NumberOfFragments, 501 HoareAnnotationTreeSize, 6 FomulaSimplifications, 7821 FormulaSimplificationTreeSizeReduction, 37.2s HoareSimplificationTime, 6 FomulaSimplificationsInter, 331025 FormulaSimplificationTreeSizeReductionInter, 13.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 1985 NumberOfCodeBlocks, 1504 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2893 ConstructedInterpolants, 0 QuantifiedInterpolants, 8687 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1899 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 31 InterpolantComputations, 7 PerfectInterpolantSequences, 19468/36969 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: OVERALL_TIME: 8.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 95, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 207, TOOLS_POST_TIME: 7.8s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 207, TOOLS_QUANTIFIERELIM_TIME: 7.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 322, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 18, DOMAIN_JOIN_TIME: 0.4s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 9, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 95, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 6.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 6.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 9, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 2219, DAG_COMPRESSION_RETAINED_NODES: 250, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((__VERIFIER_assert__cond == __tmp_1 && 0 <= main____CPAchecker_TMP_0 + 2147483648) && unknown-#length-unknown[3] == 12) && __VERIFIER_assert__cond == __tmp_2) && main__tagbuf_len <= 2147483646) && 2 == unknown-#length-unknown[1]) && __tmp_1 == (if 0 <= main__t then 1 else 0)) && __tmp_259_0 == main____CPAchecker_TMP_0) && \valid[3] == 1) && main__t == 0) && main____CPAchecker_TMP_0 <= 2147483647) && __return_305 == 0) && \valid[1] == 1) && 0 <= main__tagbuf_len) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && (if main__t <= main__tagbuf_len then 1 else 0) == __tmp_2) && 33 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && __tmp_383_0 == 0) && !(main__t == main__tagbuf_len)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && !(main____CPAchecker_TMP_0 == 0)) || ((((((((((((((((((((((((((((__tmp_383_0 <= 0 && main____CPAchecker_TMP_0 <= 2147483647) && 0 <= __tmp_383_0) && __tmp_14 <= 1) && !(__VERIFIER_assert__cond == 0)) && __tmp_18 == __VERIFIER_assert__cond) && 0 <= __tmp_14) && main__tagbuf_len <= 2147483646) && __VERIFIER_assert__cond <= 1) && 0 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond <= 1) && __tmp_17 == (if 0 <= main__t then 1 else 0)) && __return_305 == 0) && main____CPAchecker_TMP_1 + 1 == main__t) && 0 <= main____CPAchecker_TMP_1) && __tmp_18 == (if main__t <= main__tagbuf_len then 1 else 0)) && 0 <= __tmp_13) && __tmp_383_0 == main____CPAchecker_TMP_0) && __tmp_17 == __VERIFIER_assert__cond) && #NULL == 0) && 0 <= main____CPAchecker_TMP_0 + 2147483648) && !(main____CPAchecker_TMP_0 == 0)) && __tmp_13 <= 1) && 0 <= __VERIFIER_assert__cond) && 0 <= unknown-#StackHeapBarrier-unknown) && __return_main == 0) && __tmp_259_0 == main____CPAchecker_TMP_0) && !(main__t == main__tagbuf_len)) && #NULL == 0) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (main__tagbuf_len <= 2147483646 && 1 <= main__t) && !(main__t == main__tagbuf_len) - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: (main__t <= 2147483646 && main__tagbuf_len <= 2147483646) && 1 <= main__t - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && __tmp_259_0 == 0) && __tmp_19 == __VERIFIER_assert__cond) && __tmp_14 <= 1) && __tmp_20 == __VERIFIER_assert__cond) && 0 <= __tmp_14) && main__tagbuf_len <= 2147483646) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && __VERIFIER_assert__cond <= 1) && __tmp_19 == (if 0 <= main__t then 1 else 0)) && 0 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond <= 1) && __return_305 == 0) && main____CPAchecker_TMP_1 + 1 == main__t) && \valid[1] == 1) && 0 <= main____CPAchecker_TMP_1) && 0 <= main__tagbuf_len) && 0 <= __tmp_13) && __tmp_383_0 == main____CPAchecker_TMP_0) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 33 == unknown-#length-unknown[2]) && __tmp_13 <= 1) && unknown-#memory_int-unknown[1][1] == 0) && 0 <= __VERIFIER_assert__cond) && __return_main == 0) && __tmp_20 == (if main__t <= main__tagbuf_len then 1 else 0)) && __tmp_383_0 == 0) && !(main__t == main__tagbuf_len)) && 0 < unknown-#StackHeapBarrier-unknown) && main____CPAchecker_TMP_0 == 0) && #NULL == 0) && main__t <= 2147483645) || ((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && __tmp_259_0 == 0) && main____CPAchecker_TMP_0 == 0) && __tmp_14 == __VERIFIER_assert__cond) && main__tagbuf_len <= 2147483646) && 2 == unknown-#length-unknown[1]) && __tmp_13 == __VERIFIER_assert__cond) && \valid[3] == 1) && main__t == 0) && __return_305 == 0) && \valid[1] == 1) && 0 <= main__tagbuf_len) && \valid[0] == 0) && \valid[2] == 1) && __tmp_13 == (if 0 <= main__t then 1 else 0)) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 33 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && __tmp_14 == (if main__t <= main__tagbuf_len then 1 else 0)) && __return_main == 0) && __tmp_383_0 == 0) && !(main__t == main__tagbuf_len)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 14:25:56,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7f861-f4cc-4d14-af71-e9a231f28ed3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE